Comet Research Group

Publications about the Younger Dryas Impact Event

The selected references below present evidence (both pro and con) about the Younger Dryas Boundary (YDB) impact event 12,800 years ago, about impact-related population changes, and/or about climate change at the beginning of the Younger Dryas episode.

The following is a selection of the many scientific publications relating to the Younger Dryas impact hypothesis. We have included publications in support of our central hypothesis, as well as publications in disagreement. We list them here for informational purposes. Click here for a more up-to-date, comprehensive bibliography.

IMPORTANT: listing papers here does not imply that we agree with the conclusions of papers not published by members of the Comet Research Group.

Featured publications from the National Academy of Sciences

Featured publications from the National Academy of Sciences

Featured publications from the National Academy of Sciences

all publications (click to view)

all publications (click to view)

Publication Title

Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling

Position:

Supports impact

Publication Title

Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling

Position:

Supports impact

Publication Title

Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling

Position:

Supports impact

Publication Title

Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling

Position:

Supports impact

Publication Title

Younger Dryas “black mats” and the Rancholabrean termination in North America

Position:

Against impact

Publication Title

Younger Dryas “black mats” and the Rancholabrean termination in North America

Position:

Against impact

Publication Title

Younger Dryas “black mats” and the Rancholabrean termination in North America

Position:

Against impact

Publication Title

Younger Dryas “black mats” and the Rancholabrean termination in North America

Position:

Against impact

Publication Title

Shock-synthesized hexagonal diamonds in Younger Dryas boundary Sediments

Position:

Supports impact

Publication Title

Shock-synthesized hexagonal diamonds in Younger Dryas boundary Sediments

Position:

Supports impact

Publication Title

Shock-synthesized hexagonal diamonds in Younger Dryas boundary Sediments

Position:

Supports impact

Publication Title

Shock-synthesized hexagonal diamonds in Younger Dryas boundary Sediments

Position:

Supports impact

Publication Title

Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

Position:

Supports impact

Publication Title

Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

Position:

Supports impact

Publication Title

Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

Position:

Supports impact

Publication Title

Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

Position:

Supports impact

Publication Title

Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago

Position:

Supports impact

Publication Title

Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago

Position:

Supports impact

Publication Title

Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago

Position:

Supports impact

Publication Title

Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago

Position:

Supports impact

Publication Title

Independent evaluation of conflicting microspherule results from different investigations of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Independent evaluation of conflicting microspherule results from different investigations of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Independent evaluation of conflicting microspherule results from different investigations of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Independent evaluation of conflicting microspherule results from different investigations of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Evidence for deposition of 10 million tonnes of cosmic impact spherules across four continents 12,800 years ago

Position:

Supports impact

Publication Title

Evidence for deposition of 10 million tonnes of cosmic impact spherules across four continents 12,800 years ago

Position:

Supports impact

Publication Title

Evidence for deposition of 10 million tonnes of cosmic impact spherules across four continents 12,800 years ago

Position:

Supports impact

Publication Title

Evidence for deposition of 10 million tonnes of cosmic impact spherules across four continents 12,800 years ago

Position:

Supports impact

Publication Title

Origin and provenance of spherules and magnetic grains at the Younger Dryas boundary

Position:

Supports impact

Publication Title

Origin and provenance of spherules and magnetic grains at the Younger Dryas boundary

Position:

Supports impact

Publication Title

Origin and provenance of spherules and magnetic grains at the Younger Dryas boundary

Position:

Supports impact

Publication Title

Origin and provenance of spherules and magnetic grains at the Younger Dryas boundary

Position:

Supports impact

Publication Title

Quantifying the Distribution of Nanodiamonds in Pre-Younger Dryas to Recent Age Deposits along Bull creek, Oklahoma Panhandle, USA

Position:

Supports impact

Publication Title

Quantifying the Distribution of Nanodiamonds in Pre-Younger Dryas to Recent Age Deposits along Bull creek, Oklahoma Panhandle, USA

Position:

Supports impact

Publication Title

Quantifying the Distribution of Nanodiamonds in Pre-Younger Dryas to Recent Age Deposits along Bull creek, Oklahoma Panhandle, USA

Position:

Supports impact

Publication Title

Quantifying the Distribution of Nanodiamonds in Pre-Younger Dryas to Recent Age Deposits along Bull creek, Oklahoma Panhandle, USA

Position:

Supports impact

Publication Title

Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents

Position:

Supports impact

Publication Title

Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents

Position:

Supports impact

Publication Title

Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents

Position:

Supports impact

Publication Title

Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents

Position:

Supports impact

Publication Title

Multiple lines of evidence for possible human population decline/settlement reorganization during the early Younger Dryas

Position:

Supports impact

Publication Title

Multiple lines of evidence for possible human population decline/settlement reorganization during the early Younger Dryas

Position:

Supports impact

Publication Title

Multiple lines of evidence for possible human population decline/settlement reorganization during the early Younger Dryas

Position:

Supports impact

Publication Title

Multiple lines of evidence for possible human population decline/settlement reorganization during the early Younger Dryas

Position:

Supports impact

Publication Title

On the possibility of a late Pleistocene, extraterrestrial impact: LA-ICP-MS Analysis of the Black Mat and Usselo Horizon Samples

Position:

Supports impact

Publication Title

On the possibility of a late Pleistocene, extraterrestrial impact: LA-ICP-MS Analysis of the Black Mat and Usselo Horizon Samples

Position:

Supports impact

Publication Title

On the possibility of a late Pleistocene, extraterrestrial impact: LA-ICP-MS Analysis of the Black Mat and Usselo Horizon Samples

Position:

Supports impact

Publication Title

On the possibility of a late Pleistocene, extraterrestrial impact: LA-ICP-MS Analysis of the Black Mat and Usselo Horizon Samples

Position:

Supports impact

Publication Title

In search for fingerprints of an extraterrestrial event: Trace element characteristics of sediments from the lake Medvedevskoye (Karelian Isthmus, Russia)

Position:

Supports impact

Publication Title

In search for fingerprints of an extraterrestrial event: Trace element characteristics of sediments from the lake Medvedevskoye (Karelian Isthmus, Russia)

Position:

Supports impact

Publication Title

In search for fingerprints of an extraterrestrial event: Trace element characteristics of sediments from the lake Medvedevskoye (Karelian Isthmus, Russia)

Position:

Supports impact

Publication Title

In search for fingerprints of an extraterrestrial event: Trace element characteristics of sediments from the lake Medvedevskoye (Karelian Isthmus, Russia)

Position:

Supports impact

Publication Title

Geochemical evidence of the presence of volcanic and meteoritic materials in Late Pleistocene lake sediments of Lithuania

Position:

Supports impact

Publication Title

Geochemical evidence of the presence of volcanic and meteoritic materials in Late Pleistocene lake sediments of Lithuania

Position:

Supports impact

Publication Title

Geochemical evidence of the presence of volcanic and meteoritic materials in Late Pleistocene lake sediments of Lithuania

Position:

Supports impact

Publication Title

Geochemical evidence of the presence of volcanic and meteoritic materials in Late Pleistocene lake sediments of Lithuania

Position:

Supports impact

Publication Title

Implications from chemical, structural and mineralogical studies of magnetic microspherules from around the lower Younger Dryas boundary (New Mexico, USA)

Position:

Supports impact

Publication Title

Implications from chemical, structural and mineralogical studies of magnetic microspherules from around the lower Younger Dryas boundary (New Mexico, USA)

Position:

Supports impact

Publication Title

Implications from chemical, structural and mineralogical studies of magnetic microspherules from around the lower Younger Dryas boundary (New Mexico, USA)

Position:

Supports impact

Publication Title

Implications from chemical, structural and mineralogical studies of magnetic microspherules from around the lower Younger Dryas boundary (New Mexico, USA)

Position:

Supports impact

Publication Title

Montana Evidence for Extra-Terrestrial Impact Event That Caused Ice-Age Mammal Die-Off

Position:

Supports impact

Publication Title

Montana Evidence for Extra-Terrestrial Impact Event That Caused Ice-Age Mammal Die-Off

Position:

Supports impact

Publication Title

Montana Evidence for Extra-Terrestrial Impact Event That Caused Ice-Age Mammal Die-Off

Position:

Supports impact

Publication Title

Montana Evidence for Extra-Terrestrial Impact Event That Caused Ice-Age Mammal Die-Off

Position:

Supports impact

Publication Title

A Lateglacial Paleofire Record for east-central Michigan focusing on the Gainey archaeological site

Position:

Supports impact

Publication Title

A Lateglacial Paleofire Record for east-central Michigan focusing on the Gainey archaeological site

Position:

Supports impact

Publication Title

A Lateglacial Paleofire Record for east-central Michigan focusing on the Gainey archaeological site

Position:

Supports impact

Publication Title

A Lateglacial Paleofire Record for east-central Michigan focusing on the Gainey archaeological site

Position:

Supports impact

Publication Title

The End Pleistocene Extinction Event: What Caused It?

Position:

Supports impact

Publication Title

The End Pleistocene Extinction Event: What Caused It?

Position:

Supports impact

Publication Title

The End Pleistocene Extinction Event: What Caused It?

Position:

Supports impact

Publication Title

The End Pleistocene Extinction Event: What Caused It?

Position:

Supports impact

Publication Title

Search for Extraterrestrial Osmium at the Allerod - Younger Dryas Boundary

Position:

Supports impact

Publication Title

Search for Extraterrestrial Osmium at the Allerod - Younger Dryas Boundary

Position:

Supports impact

Publication Title

Search for Extraterrestrial Osmium at the Allerod - Younger Dryas Boundary

Position:

Supports impact

Publication Title

Search for Extraterrestrial Osmium at the Allerod - Younger Dryas Boundary

Position:

Supports impact

Publication Title

Stratified early-middle Holocene remains in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Stratified early-middle Holocene remains in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Stratified early-middle Holocene remains in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Stratified early-middle Holocene remains in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Current research into the Paleoindian and Archaic periods in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Current research into the Paleoindian and Archaic periods in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Current research into the Paleoindian and Archaic periods in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Current research into the Paleoindian and Archaic periods in the North Carolina Coastal Plain

Position:

Supports impact

Publication Title

Searching a sand dune: shovel testing the Barber Creek site. N Carolina Archaeol 57:50–77.

Position:

Supports impact

Publication Title

Searching a sand dune: shovel testing the Barber Creek site. N Carolina Archaeol 57:50–77.

Position:

Supports impact

Publication Title

Searching a sand dune: shovel testing the Barber Creek site. N Carolina Archaeol 57:50–77.

Position:

Supports impact

Publication Title

Searching a sand dune: shovel testing the Barber Creek site. N Carolina Archaeol 57:50–77.

Position:

Supports impact

Publication Title

An archaeological and paleontological chronology for Daisy Cave (CA-SMI-261)

Position:

Supports impact

Publication Title

An archaeological and paleontological chronology for Daisy Cave (CA-SMI-261)

Position:

Supports impact

Publication Title

An archaeological and paleontological chronology for Daisy Cave (CA-SMI-261)

Position:

Supports impact

Publication Title

An archaeological and paleontological chronology for Daisy Cave (CA-SMI-261)

Position:

Supports impact

Publication Title

Framboidal iron oxide: chondrite-like material from the black mat, Murray Springs, Arizona. Earth Planet.

Position:

Supports impact

Publication Title

Framboidal iron oxide: chondrite-like material from the black mat, Murray Springs, Arizona. Earth Planet.

Position:

Supports impact

Publication Title

Framboidal iron oxide: chondrite-like material from the black mat, Murray Springs, Arizona. Earth Planet.

Position:

Supports impact

Publication Title

Framboidal iron oxide: chondrite-like material from the black mat, Murray Springs, Arizona. Earth Planet.

Position:

Supports impact

Publication Title

The Case for the Younger Dryas Extraterrestrial Impact Event: Mammoth, Megafauna, and Clovis Extinction, 12,900 Years Ago.

Position:

Supports impact

Publication Title

The Case for the Younger Dryas Extraterrestrial Impact Event: Mammoth, Megafauna, and Clovis Extinction, 12,900 Years Ago.

Position:

Supports impact

Publication Title

The Case for the Younger Dryas Extraterrestrial Impact Event: Mammoth, Megafauna, and Clovis Extinction, 12,900 Years Ago.

Position:

Supports impact

Publication Title

The Case for the Younger Dryas Extraterrestrial Impact Event: Mammoth, Megafauna, and Clovis Extinction, 12,900 Years Ago.

Position:

Supports impact

Publication Title

Analysis of the Younger Dryas impact layer

Position:

Supports impact

Publication Title

Analysis of the Younger Dryas impact layer

Position:

Supports impact

Publication Title

Analysis of the Younger Dryas impact layer

Position:

Supports impact

Publication Title

Analysis of the Younger Dryas impact layer

Position:

Supports impact

Publication Title

Field-Analytical approach of land-sea records for elucidating the Younger Dryas Boundary syndrome.

Position:

Supports impact

Publication Title

Field-Analytical approach of land-sea records for elucidating the Younger Dryas Boundary syndrome.

Position:

Supports impact

Publication Title

Field-Analytical approach of land-sea records for elucidating the Younger Dryas Boundary syndrome.

Position:

Supports impact

Publication Title

Field-Analytical approach of land-sea records for elucidating the Younger Dryas Boundary syndrome.

Position:

Supports impact

Publication Title

The early Holocene occupation of the southeastern United States: A geoarchaeological summary. Ice Age Peoples of North America

Position:

Supports impact

Publication Title

The early Holocene occupation of the southeastern United States: A geoarchaeological summary. Ice Age Peoples of North America

Position:

Supports impact

Publication Title

The early Holocene occupation of the southeastern United States: A geoarchaeological summary. Ice Age Peoples of North America

Position:

Supports impact

Publication Title

The early Holocene occupation of the southeastern United States: A geoarchaeological summary. Ice Age Peoples of North America

Position:

Supports impact

Publication Title

Evidence of Pre-Clovis sites in the eastern United States. Paleoamerican Origins: Beyond Clovis

Position:

Supports impact

Publication Title

Evidence of Pre-Clovis sites in the eastern United States. Paleoamerican Origins: Beyond Clovis

Position:

Supports impact

Publication Title

Evidence of Pre-Clovis sites in the eastern United States. Paleoamerican Origins: Beyond Clovis

Position:

Supports impact

Publication Title

Evidence of Pre-Clovis sites in the eastern United States. Paleoamerican Origins: Beyond Clovis

Position:

Supports impact

Publication Title

Recognizing the Redstone fluted point in the South Carolina Paleoindian point data base.

Position:

Supports impact

Publication Title

Recognizing the Redstone fluted point in the South Carolina Paleoindian point data base.

Position:

Supports impact

Publication Title

Recognizing the Redstone fluted point in the South Carolina Paleoindian point data base.

Position:

Supports impact

Publication Title

Recognizing the Redstone fluted point in the South Carolina Paleoindian point data base.

Position:

Supports impact

Publication Title

Instrument-assisted fluting as a technochronological marker among North American Paleoindian points.

Position:

Supports impact

Publication Title

Instrument-assisted fluting as a technochronological marker among North American Paleoindian points.

Position:

Supports impact

Publication Title

Instrument-assisted fluting as a technochronological marker among North American Paleoindian points.

Position:

Supports impact

Publication Title

Instrument-assisted fluting as a technochronological marker among North American Paleoindian points.

Position:

Supports impact

Publication Title

Introducing Clovis at the Topper site, 38AL23, Allendale County, South Carolina. Paper presented at the 72nd annual meeting of the Society for American Archaeology, Austin, TX.

Position:

Supports impact

Publication Title

Introducing Clovis at the Topper site, 38AL23, Allendale County, South Carolina. Paper presented at the 72nd annual meeting of the Society for American Archaeology, Austin, TX.

Position:

Supports impact

Publication Title

Introducing Clovis at the Topper site, 38AL23, Allendale County, South Carolina. Paper presented at the 72nd annual meeting of the Society for American Archaeology, Austin, TX.

Position:

Supports impact

Publication Title

Introducing Clovis at the Topper site, 38AL23, Allendale County, South Carolina. Paper presented at the 72nd annual meeting of the Society for American Archaeology, Austin, TX.

Position:

Supports impact

Publication Title

Evidence of a Clovis occupation at the Topper site, 38AL23, Allendale County, South Carolina. Curr Res Pleist 20:23–25.

Position:

Supports impact

Publication Title

Evidence of a Clovis occupation at the Topper site, 38AL23, Allendale County, South Carolina. Curr Res Pleist 20:23–25.

Position:

Supports impact

Publication Title

Evidence of a Clovis occupation at the Topper site, 38AL23, Allendale County, South Carolina. Curr Res Pleist 20:23–25.

Position:

Supports impact

Publication Title

Evidence of a Clovis occupation at the Topper site, 38AL23, Allendale County, South Carolina. Curr Res Pleist 20:23–25.

Position:

Supports impact

Publication Title

A 20,000 year record of ocean circulation and climate change from the Santa Barbara Basin. Nature 377:510-514.

Position:

Supports impact

Publication Title

A 20,000 year record of ocean circulation and climate change from the Santa Barbara Basin. Nature 377:510-514.

Position:

Supports impact

Publication Title

A 20,000 year record of ocean circulation and climate change from the Santa Barbara Basin. Nature 377:510-514.

Position:

Supports impact

Publication Title

A 20,000 year record of ocean circulation and climate change from the Santa Barbara Basin. Nature 377:510-514.

Position:

Supports impact

Publication Title

Nanodiamonds in the Younger Dryas boundary sediment layer. Science 323(5910):94.

Position:

Supports impact

Publication Title

Nanodiamonds in the Younger Dryas boundary sediment layer. Science 323(5910):94.

Position:

Supports impact

Publication Title

Nanodiamonds in the Younger Dryas boundary sediment layer. Science 323(5910):94.

Position:

Supports impact

Publication Title

Nanodiamonds in the Younger Dryas boundary sediment layer. Science 323(5910):94.

Position:

Supports impact

Publication Title

Wildfire and abrupt ecosystem disruption on California’s Northern Channel Islands at the Ållerød–Younger Dryas boundary (13.0–12.9 ka). Quat Sci Rev 27(27–28):2530–2545.

Position:

Supports impact

Publication Title

Wildfire and abrupt ecosystem disruption on California’s Northern Channel Islands at the Ållerød–Younger Dryas boundary (13.0–12.9 ka). Quat Sci Rev 27(27–28):2530–2545.

Position:

Supports impact

Publication Title

Wildfire and abrupt ecosystem disruption on California’s Northern Channel Islands at the Ållerød–Younger Dryas boundary (13.0–12.9 ka). Quat Sci Rev 27(27–28):2530–2545.

Position:

Supports impact

Publication Title

Wildfire and abrupt ecosystem disruption on California’s Northern Channel Islands at the Ållerød–Younger Dryas boundary (13.0–12.9 ka). Quat Sci Rev 27(27–28):2530–2545.

Position:

Supports impact

Publication Title

Nanodiamond-rich layer across three continents consistent with major cosmic impact at 12,800 cal BP. J Geol 122(5):475–506.

Position:

Supports impact

Publication Title

Nanodiamond-rich layer across three continents consistent with major cosmic impact at 12,800 cal BP. J Geol 122(5):475–506.

Position:

Supports impact

Publication Title

Nanodiamond-rich layer across three continents consistent with major cosmic impact at 12,800 cal BP. J Geol 122(5):475–506.

Position:

Supports impact

Publication Title

Nanodiamond-rich layer across three continents consistent with major cosmic impact at 12,800 cal BP. J Geol 122(5):475–506.

Position:

Supports impact

Publication Title

The Usselo Horizon, a worldwide charcoal- rich layer of Ållerød age. New Scenarios on the Evolution of the Solar System and Consequences in History of Earth and Man, eds. Spedicato E, Notarpietro A. Milano, IT.

Position:

Supports impact

Publication Title

The Usselo Horizon, a worldwide charcoal- rich layer of Ållerød age. New Scenarios on the Evolution of the Solar System and Consequences in History of Earth and Man, eds. Spedicato E, Notarpietro A. Milano, IT.

Position:

Supports impact

Publication Title

The Usselo Horizon, a worldwide charcoal- rich layer of Ållerød age. New Scenarios on the Evolution of the Solar System and Consequences in History of Earth and Man, eds. Spedicato E, Notarpietro A. Milano, IT.

Position:

Supports impact

Publication Title

The Usselo Horizon, a worldwide charcoal- rich layer of Ållerød age. New Scenarios on the Evolution of the Solar System and Consequences in History of Earth and Man, eds. Spedicato E, Notarpietro A. Milano, IT.

Position:

Supports impact

Publication Title

Correlation of the Late Pleistocene Usselo Horizon (Europe) and the Clovis Layer (North America). Poster Paper PP43A-02 presented at the joint assembly of the American Geophysical Union, Acapulco, MX.

Position:

Supports impact

Publication Title

Correlation of the Late Pleistocene Usselo Horizon (Europe) and the Clovis Layer (North America). Poster Paper PP43A-02 presented at the joint assembly of the American Geophysical Union, Acapulco, MX.

Position:

Supports impact

Publication Title

Correlation of the Late Pleistocene Usselo Horizon (Europe) and the Clovis Layer (North America). Poster Paper PP43A-02 presented at the joint assembly of the American Geophysical Union, Acapulco, MX.

Position:

Supports impact

Publication Title

Correlation of the Late Pleistocene Usselo Horizon (Europe) and the Clovis Layer (North America). Poster Paper PP43A-02 presented at the joint assembly of the American Geophysical Union, Acapulco, MX.

Position:

Supports impact

Publication Title

Some considerations with regard to large comets: A major difference in possible damage to the biosphere across the potential physical size range of Earth-orbit-crossing objects— University of Georgia.

Position:

Supports impact

Publication Title

Some considerations with regard to large comets: A major difference in possible damage to the biosphere across the potential physical size range of Earth-orbit-crossing objects— University of Georgia.

Position:

Supports impact

Publication Title

Some considerations with regard to large comets: A major difference in possible damage to the biosphere across the potential physical size range of Earth-orbit-crossing objects— University of Georgia.

Position:

Supports impact

Publication Title

Some considerations with regard to large comets: A major difference in possible damage to the biosphere across the potential physical size range of Earth-orbit-crossing objects— University of Georgia.

Position:

Supports impact

Publication Title

The mighty snake firmly resolved to harm the men. University of Georgia.

Position:

Supports impact

Publication Title

The mighty snake firmly resolved to harm the men. University of Georgia.

Position:

Supports impact

Publication Title

The mighty snake firmly resolved to harm the men. University of Georgia.

Position:

Supports impact

Publication Title

The mighty snake firmly resolved to harm the men. University of Georgia.

Position:

Supports impact

Publication Title

Comet Phaethon's Ride [A condensed version of this article titled, The Path of a Comet and Phaethon's Ride, was published by The World & I (ISSN 0887-9346) Vol. 10, No. 2 (Feb. 95) pp. 394-405.] University of Georgia.

Position:

Supports impact

Publication Title

Comet Phaethon's Ride [A condensed version of this article titled, The Path of a Comet and Phaethon's Ride, was published by The World & I (ISSN 0887-9346) Vol. 10, No. 2 (Feb. 95) pp. 394-405.] University of Georgia.

Position:

Supports impact

Publication Title

Comet Phaethon's Ride [A condensed version of this article titled, The Path of a Comet and Phaethon's Ride, was published by The World & I (ISSN 0887-9346) Vol. 10, No. 2 (Feb. 95) pp. 394-405.] University of Georgia.

Position:

Supports impact

Publication Title

Comet Phaethon's Ride [A condensed version of this article titled, The Path of a Comet and Phaethon's Ride, was published by The World & I (ISSN 0887-9346) Vol. 10, No. 2 (Feb. 95) pp. 394-405.] University of Georgia.

Position:

Supports impact

Publication Title

A Nickel Pickle. The Problems of Building High-Tech From a Meteoroid Wreck. University of Georgia.

Position:

Supports impact

Publication Title

A Nickel Pickle. The Problems of Building High-Tech From a Meteoroid Wreck. University of Georgia.

Position:

Supports impact

Publication Title

A Nickel Pickle. The Problems of Building High-Tech From a Meteoroid Wreck. University of Georgia.

Position:

Supports impact

Publication Title

A Nickel Pickle. The Problems of Building High-Tech From a Meteoroid Wreck. University of Georgia.

Position:

Supports impact

Publication Title

Discussion (comets, dragons, sky-gods, Younger Dryas, mega fauna, and the Carolina Bays). University of Georgia.

Position:

Supports impact

Publication Title

Discussion (comets, dragons, sky-gods, Younger Dryas, mega fauna, and the Carolina Bays). University of Georgia.

Position:

Supports impact

Publication Title

Discussion (comets, dragons, sky-gods, Younger Dryas, mega fauna, and the Carolina Bays). University of Georgia.

Position:

Supports impact

Publication Title

Discussion (comets, dragons, sky-gods, Younger Dryas, mega fauna, and the Carolina Bays). University of Georgia.

Position:

Supports impact

Publication Title

Discovery of a nanodiamond-rich layer in the Greenland ice sheet

Position:

Supports impact

Publication Title

Discovery of a nanodiamond-rich layer in the Greenland ice sheet

Position:

Supports impact

Publication Title

Discovery of a nanodiamond-rich layer in the Greenland ice sheet

Position:

Supports impact

Publication Title

Discovery of a nanodiamond-rich layer in the Greenland ice sheet

Position:

Supports impact

Publication Title

Weathering rinds—unlikely host clasts for an impact-induced event

Position:

Supports impact

Publication Title

Weathering rinds—unlikely host clasts for an impact-induced event

Position:

Supports impact

Publication Title

Weathering rinds—unlikely host clasts for an impact-induced event

Position:

Supports impact

Publication Title

Weathering rinds—unlikely host clasts for an impact-induced event

Position:

Supports impact

Publication Title

Extreme heating events and effects in the natural environment: implications for environmental geomorphology

Position:

Supports impact

Publication Title

Extreme heating events and effects in the natural environment: implications for environmental geomorphology

Position:

Supports impact

Publication Title

Extreme heating events and effects in the natural environment: implications for environmental geomorphology

Position:

Supports impact

Publication Title

Extreme heating events and effects in the natural environment: implications for environmental geomorphology

Position:

Supports impact

Publication Title

Evidence for a cosmogenic origin of fired glaciofluvial beds in the northwestern Andes: correlation with experimentally heated quartz and feldspar

Position:

Supports impact

Publication Title

Evidence for a cosmogenic origin of fired glaciofluvial beds in the northwestern Andes: correlation with experimentally heated quartz and feldspar

Position:

Supports impact

Publication Title

Evidence for a cosmogenic origin of fired glaciofluvial beds in the northwestern Andes: correlation with experimentally heated quartz and feldspar

Position:

Supports impact

Publication Title

Evidence for a cosmogenic origin of fired glaciofluvial beds in the northwestern Andes: correlation with experimentally heated quartz and feldspar

Position:

Supports impact

Publication Title

Evidence from the northwestern Venezuelan Andes for extraterrestrial impact: the black mat enigma

Position:

Supports impact

Publication Title

Evidence from the northwestern Venezuelan Andes for extraterrestrial impact: the black mat enigma

Position:

Supports impact

Publication Title

Evidence from the northwestern Venezuelan Andes for extraterrestrial impact: the black mat enigma

Position:

Supports impact

Publication Title

Evidence from the northwestern Venezuelan Andes for extraterrestrial impact: the black mat enigma

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucuñuque catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucuñuque catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucuñuque catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucuñuque catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Evidence for a Younger Dryas glacial advance in the Andes of northwestern Venezuela

Position:

Supports impact

Publication Title

Evidence for a Younger Dryas glacial advance in the Andes of northwestern Venezuela

Position:

Supports impact

Publication Title

Evidence for a Younger Dryas glacial advance in the Andes of northwestern Venezuela

Position:

Supports impact

Publication Title

Evidence for a Younger Dryas glacial advance in the Andes of northwestern Venezuela

Position:

Supports impact

Publication Title

A microbial link to weathering of postglacial rocks and sediments, Mt. Viso area, Western Alps, demonstrated through analysis of a soil/paleosol bio/chronosequence. J of Geology (in press).

Position:

Supports impact

Publication Title

A microbial link to weathering of postglacial rocks and sediments, Mt. Viso area, Western Alps, demonstrated through analysis of a soil/paleosol bio/chronosequence. J of Geology (in press).

Position:

Supports impact

Publication Title

A microbial link to weathering of postglacial rocks and sediments, Mt. Viso area, Western Alps, demonstrated through analysis of a soil/paleosol bio/chronosequence. J of Geology (in press).

Position:

Supports impact

Publication Title

A microbial link to weathering of postglacial rocks and sediments, Mt. Viso area, Western Alps, demonstrated through analysis of a soil/paleosol bio/chronosequence. J of Geology (in press).

Position:

Supports impact

Publication Title

Fired glaciofluvial sediment in the northwestern Andes: biotic aspects of the Black Mat

Position:

Supports impact

Publication Title

Fired glaciofluvial sediment in the northwestern Andes: biotic aspects of the Black Mat

Position:

Supports impact

Publication Title

Fired glaciofluvial sediment in the northwestern Andes: biotic aspects of the Black Mat

Position:

Supports impact

Publication Title

Fired glaciofluvial sediment in the northwestern Andes: biotic aspects of the Black Mat

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucunuque Catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucunuque Catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucunuque Catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Notes on the black mat sediment, Mucunuque Catchment, northern Mérida Andes, Venezuela

Position:

Supports impact

Publication Title

Exceptional iridium concentrations found at the Allerød-Younger Dryas transition in sediments from Bodmin Moor in southwest England. Paper #2641, XVIII INQUA-Congress, 21-27 July 2011 in Bern, Switzerland.

Position:

Supports impact

Publication Title

Exceptional iridium concentrations found at the Allerød-Younger Dryas transition in sediments from Bodmin Moor in southwest England. Paper #2641, XVIII INQUA-Congress, 21-27 July 2011 in Bern, Switzerland.

Position:

Supports impact

Publication Title

Exceptional iridium concentrations found at the Allerød-Younger Dryas transition in sediments from Bodmin Moor in southwest England. Paper #2641, XVIII INQUA-Congress, 21-27 July 2011 in Bern, Switzerland.

Position:

Supports impact

Publication Title

Exceptional iridium concentrations found at the Allerød-Younger Dryas transition in sediments from Bodmin Moor in southwest England. Paper #2641, XVIII INQUA-Congress, 21-27 July 2011 in Bern, Switzerland.

Position:

Supports impact

Publication Title

The atmosphere during the Younger Dryas

Position:

Supports impact

Publication Title

The atmosphere during the Younger Dryas

Position:

Supports impact

Publication Title

The atmosphere during the Younger Dryas

Position:

Supports impact

Publication Title

The atmosphere during the Younger Dryas

Position:

Supports impact

Publication Title

Mayewski, Paul A.; Meeker, Loren D.; Twickler, Mark S.; Whitlow, Sallie; Yang, Qinzhao; Lyons, W. Berry; Prentice, Michael., 1997. Major features and forcing of high-latitude northern hemisphere atmospheric circulation using a 110,000-year-long glaciochemical series. J Geophys Res 102, 26345-26366.

Position:

Supports impact

Publication Title

Mayewski, Paul A.; Meeker, Loren D.; Twickler, Mark S.; Whitlow, Sallie; Yang, Qinzhao; Lyons, W. Berry; Prentice, Michael., 1997. Major features and forcing of high-latitude northern hemisphere atmospheric circulation using a 110,000-year-long glaciochemical series. J Geophys Res 102, 26345-26366.

Position:

Supports impact

Publication Title

Mayewski, Paul A.; Meeker, Loren D.; Twickler, Mark S.; Whitlow, Sallie; Yang, Qinzhao; Lyons, W. Berry; Prentice, Michael., 1997. Major features and forcing of high-latitude northern hemisphere atmospheric circulation using a 110,000-year-long glaciochemical series. J Geophys Res 102, 26345-26366.

Position:

Supports impact

Publication Title

Mayewski, Paul A.; Meeker, Loren D.; Twickler, Mark S.; Whitlow, Sallie; Yang, Qinzhao; Lyons, W. Berry; Prentice, Michael., 1997. Major features and forcing of high-latitude northern hemisphere atmospheric circulation using a 110,000-year-long glaciochemical series. J Geophys Res 102, 26345-26366.

Position:

Supports impact

Publication Title

Cometary airbursts and atmospheric chemistry: Tunguska and a candidate Younger Dryas event

Position:

Supports impact

Publication Title

Cometary airbursts and atmospheric chemistry: Tunguska and a candidate Younger Dryas event

Position:

Supports impact

Publication Title

Cometary airbursts and atmospheric chemistry: Tunguska and a candidate Younger Dryas event

Position:

Supports impact

Publication Title

Cometary airbursts and atmospheric chemistry: Tunguska and a candidate Younger Dryas event

Position:

Supports impact

Publication Title

Village on the Euphrates (Oxford Univ Press, New York).

Position:

Supports impact

Publication Title

Village on the Euphrates (Oxford Univ Press, New York).

Position:

Supports impact

Publication Title

Village on the Euphrates (Oxford Univ Press, New York).

Position:

Supports impact

Publication Title

Village on the Euphrates (Oxford Univ Press, New York).

Position:

Supports impact

Publication Title

Cosmic impact, the Younger Dryas, Abu Hureyra, and the inception of agriculture in Western Asia. Eurasian Prehistory, 10, 1–2, 57–66.

Position:

Supports impact

Publication Title

Cosmic impact, the Younger Dryas, Abu Hureyra, and the inception of agriculture in Western Asia. Eurasian Prehistory, 10, 1–2, 57–66.

Position:

Supports impact

Publication Title

Cosmic impact, the Younger Dryas, Abu Hureyra, and the inception of agriculture in Western Asia. Eurasian Prehistory, 10, 1–2, 57–66.

Position:

Supports impact

Publication Title

Cosmic impact, the Younger Dryas, Abu Hureyra, and the inception of agriculture in Western Asia. Eurasian Prehistory, 10, 1–2, 57–66.

Position:

Supports impact

Publication Title

Geoarchaeological investigations of stratified sand ridges along the Tar River, North Carolina. North Carolina Archaeology: Three Archaeological Symposia, eds Ewen CR, Whyte T, Davis RPS, Jr. (North Carolina Archaeological Council Publication 30), pp 1–42.

Position:

Supports impact

Publication Title

Geoarchaeological investigations of stratified sand ridges along the Tar River, North Carolina. North Carolina Archaeology: Three Archaeological Symposia, eds Ewen CR, Whyte T, Davis RPS, Jr. (North Carolina Archaeological Council Publication 30), pp 1–42.

Position:

Supports impact

Publication Title

Geoarchaeological investigations of stratified sand ridges along the Tar River, North Carolina. North Carolina Archaeology: Three Archaeological Symposia, eds Ewen CR, Whyte T, Davis RPS, Jr. (North Carolina Archaeological Council Publication 30), pp 1–42.

Position:

Supports impact

Publication Title

Geoarchaeological investigations of stratified sand ridges along the Tar River, North Carolina. North Carolina Archaeology: Three Archaeological Symposia, eds Ewen CR, Whyte T, Davis RPS, Jr. (North Carolina Archaeological Council Publication 30), pp 1–42.

Position:

Supports impact

Publication Title

Cosmogenic nuclide enhancement via deposition from long-period comets as a test of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Cosmogenic nuclide enhancement via deposition from long-period comets as a test of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Cosmogenic nuclide enhancement via deposition from long-period comets as a test of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Cosmogenic nuclide enhancement via deposition from long-period comets as a test of the Younger Dryas impact hypothesis

Position:

Supports impact

Publication Title

Large Platinum Anomaly in the GISP2 Ice Core: Evidence for a Cataclysm at the Bølling-Allerød/Younger Dryas Boundary? 44th Lunar and Planetary Science Conference, The Woodlands, Texas

Position:

Supports impact

Publication Title

Large Platinum Anomaly in the GISP2 Ice Core: Evidence for a Cataclysm at the Bølling-Allerød/Younger Dryas Boundary? 44th Lunar and Planetary Science Conference, The Woodlands, Texas

Position:

Supports impact

Publication Title

Large Platinum Anomaly in the GISP2 Ice Core: Evidence for a Cataclysm at the Bølling-Allerød/Younger Dryas Boundary? 44th Lunar and Planetary Science Conference, The Woodlands, Texas

Position:

Supports impact

Publication Title

Large Platinum Anomaly in the GISP2 Ice Core: Evidence for a Cataclysm at the Bølling-Allerød/Younger Dryas Boundary? 44th Lunar and Planetary Science Conference, The Woodlands, Texas

Position:

Supports impact

Publication Title

Evidence of early Paleoindian bone modification and use at the Sheriden Cave site (33WY252), Wyandot County, Ohio

Position:

Supports impact

Publication Title

Evidence of early Paleoindian bone modification and use at the Sheriden Cave site (33WY252), Wyandot County, Ohio

Position:

Supports impact

Publication Title

Evidence of early Paleoindian bone modification and use at the Sheriden Cave site (33WY252), Wyandot County, Ohio

Position:

Supports impact

Publication Title

Evidence of early Paleoindian bone modification and use at the Sheriden Cave site (33WY252), Wyandot County, Ohio

Position:

Supports impact

Publication Title

Species response to the theorized Clovis Comet Impact at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Species response to the theorized Clovis Comet Impact at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Species response to the theorized Clovis Comet Impact at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Species response to the theorized Clovis Comet Impact at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

High resolution Osmium isotopes in deep-sea ferromanganese crusts reveal a large meteorite impact in the Central Pacific at 12 ± 4 ka. American Geophysical Union, Fall Meeting 2009, abstract #PP33B-06.

Position:

Supports impact

Publication Title

High resolution Osmium isotopes in deep-sea ferromanganese crusts reveal a large meteorite impact in the Central Pacific at 12 ± 4 ka. American Geophysical Union, Fall Meeting 2009, abstract #PP33B-06.

Position:

Supports impact

Publication Title

High resolution Osmium isotopes in deep-sea ferromanganese crusts reveal a large meteorite impact in the Central Pacific at 12 ± 4 ka. American Geophysical Union, Fall Meeting 2009, abstract #PP33B-06.

Position:

Supports impact

Publication Title

High resolution Osmium isotopes in deep-sea ferromanganese crusts reveal a large meteorite impact in the Central Pacific at 12 ± 4 ka. American Geophysical Union, Fall Meeting 2009, abstract #PP33B-06.

Position:

Supports impact

Publication Title

Sheriden: A Clovis Cave site in eastern North America

Position:

Supports impact

Publication Title

Sheriden: A Clovis Cave site in eastern North America

Position:

Supports impact

Publication Title

Sheriden: A Clovis Cave site in eastern North America

Position:

Supports impact

Publication Title

Sheriden: A Clovis Cave site in eastern North America

Position:

Supports impact

Publication Title

Sheriden: A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America

Position:

Supports impact

Publication Title

Sheriden: A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America

Position:

Supports impact

Publication Title

Sheriden: A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America

Position:

Supports impact

Publication Title

Sheriden: A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America

Position:

Supports impact

Publication Title

Fluoride/radiocarbon dating of late Pleistocene bone from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Fluoride/radiocarbon dating of late Pleistocene bone from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Fluoride/radiocarbon dating of late Pleistocene bone from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Fluoride/radiocarbon dating of late Pleistocene bone from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon dating of a projectile point from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon dating of a projectile point from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon dating of a projectile point from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon dating of a projectile point from Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Late Pleistocene archaeology of Sheriden Cave, Wyandot County, Ohio

Position:

Supports impact

Publication Title

Late Pleistocene archaeology of Sheriden Cave, Wyandot County, Ohio

Position:

Supports impact

Publication Title

Late Pleistocene archaeology of Sheriden Cave, Wyandot County, Ohio

Position:

Supports impact

Publication Title

Late Pleistocene archaeology of Sheriden Cave, Wyandot County, Ohio

Position:

Supports impact

Publication Title

Geochronology of Sheriden Cave, Ohio: the 1997 field season

Position:

Supports impact

Publication Title

Geochronology of Sheriden Cave, Ohio: the 1997 field season

Position:

Supports impact

Publication Title

Geochronology of Sheriden Cave, Ohio: the 1997 field season

Position:

Supports impact

Publication Title

Geochronology of Sheriden Cave, Ohio: the 1997 field season

Position:

Supports impact

Publication Title

Radiocarbon Dates Associated with a Single-beveled Bone Projectile Point Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon Dates Associated with a Single-beveled Bone Projectile Point Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon Dates Associated with a Single-beveled Bone Projectile Point Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Radiocarbon Dates Associated with a Single-beveled Bone Projectile Point Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

A Clovis cave site in eastern North America

Position:

Supports impact

Publication Title

A Clovis cave site in eastern North America

Position:

Supports impact

Publication Title

A Clovis cave site in eastern North America

Position:

Supports impact

Publication Title

A Clovis cave site in eastern North America

Position:

Supports impact

Publication Title

A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America.

Position:

Supports impact

Publication Title

A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America.

Position:

Supports impact

Publication Title

A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America.

Position:

Supports impact

Publication Title

A stratified Pleistocene-Holocene cave site in the Great Lakes region of North America.

Position:

Supports impact

Publication Title

Redefining the age of Clovis: implications for the peopling of the Americas

Position:

Supports impact

Publication Title

Redefining the age of Clovis: implications for the peopling of the Americas

Position:

Supports impact

Publication Title

Redefining the age of Clovis: implications for the peopling of the Americas

Position:

Supports impact

Publication Title

Redefining the age of Clovis: implications for the peopling of the Americas

Position:

Supports impact

Publication Title

The age of the Paleoindian assemblage at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

The age of the Paleoindian assemblage at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

The age of the Paleoindian assemblage at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

The age of the Paleoindian assemblage at Sheriden Cave, Ohio

Position:

Supports impact

Publication Title

Carbon across the Cretaceous-Tertiary Boundary, Ph.D. thesis, The University of Chicago, Illinois.

Position:

Supports impact

Publication Title

Carbon across the Cretaceous-Tertiary Boundary, Ph.D. thesis, The University of Chicago, Illinois.

Position:

Supports impact

Publication Title

Carbon across the Cretaceous-Tertiary Boundary, Ph.D. thesis, The University of Chicago, Illinois.

Position:

Supports impact

Publication Title

Carbon across the Cretaceous-Tertiary Boundary, Ph.D. thesis, The University of Chicago, Illinois.

Position:

Supports impact

Publication Title

Elemental carbon in sediments - Determination and isotopic analysis in the presence of kerogen Geochim

Position:

Supports impact

Publication Title

Elemental carbon in sediments - Determination and isotopic analysis in the presence of kerogen Geochim

Position:

Supports impact

Publication Title

Elemental carbon in sediments - Determination and isotopic analysis in the presence of kerogen Geochim

Position:

Supports impact

Publication Title

Elemental carbon in sediments - Determination and isotopic analysis in the presence of kerogen Geochim

Position:

Supports impact

Publication Title

Major Wildfires at the Cretaceous-Tertiary Boundary, In: Global Catastrophes in Earth History (eds. Sharpton VL, Ward P), Geological Society of America Special Paper 247, 391-400.

Position:

Supports impact

Publication Title

Major Wildfires at the Cretaceous-Tertiary Boundary, In: Global Catastrophes in Earth History (eds. Sharpton VL, Ward P), Geological Society of America Special Paper 247, 391-400.

Position:

Supports impact

Publication Title

Major Wildfires at the Cretaceous-Tertiary Boundary, In: Global Catastrophes in Earth History (eds. Sharpton VL, Ward P), Geological Society of America Special Paper 247, 391-400.

Position:

Supports impact

Publication Title

Major Wildfires at the Cretaceous-Tertiary Boundary, In: Global Catastrophes in Earth History (eds. Sharpton VL, Ward P), Geological Society of America Special Paper 247, 391-400.

Position:

Supports impact

Publication Title

Cretaceous Extinctions: Evidence for Wildfires and Search for Meteoritic Material, Science 230, 167-170.

Position:

Supports impact

Publication Title

Cretaceous Extinctions: Evidence for Wildfires and Search for Meteoritic Material, Science 230, 167-170.

Position:

Supports impact

Publication Title

Cretaceous Extinctions: Evidence for Wildfires and Search for Meteoritic Material, Science 230, 167-170.

Position:

Supports impact

Publication Title

Cretaceous Extinctions: Evidence for Wildfires and Search for Meteoritic Material, Science 230, 167-170.

Position:

Supports impact

Publication Title

A Search for Soot from Global Wildfires in Central Pacific Cretaceous-Tertiary Boundary and Other Extinction and Impact Horizon Sediments, Astrobiology 3, 91-97.

Position:

Supports impact

Publication Title

A Search for Soot from Global Wildfires in Central Pacific Cretaceous-Tertiary Boundary and Other Extinction and Impact Horizon Sediments, Astrobiology 3, 91-97.

Position:

Supports impact

Publication Title

A Search for Soot from Global Wildfires in Central Pacific Cretaceous-Tertiary Boundary and Other Extinction and Impact Horizon Sediments, Astrobiology 3, 91-97.

Position:

Supports impact

Publication Title

A Search for Soot from Global Wildfires in Central Pacific Cretaceous-Tertiary Boundary and Other Extinction and Impact Horizon Sediments, Astrobiology 3, 91-97.

Position:

Supports impact

Publication Title

Arguments and evidence against a Younger Dryas impact event. Climates, Landscapes, and Civilizations, eds Giosan L, Fuller DQ, Nicoll K, Flad RK, Clift PD (Amer Geophys Union, Washington, DC), Geophys Monograph Ser Vol 198, pp 13–26.

Position:

Against impact

Publication Title

Arguments and evidence against a Younger Dryas impact event. Climates, Landscapes, and Civilizations, eds Giosan L, Fuller DQ, Nicoll K, Flad RK, Clift PD (Amer Geophys Union, Washington, DC), Geophys Monograph Ser Vol 198, pp 13–26.

Position:

Against impact

Publication Title

Arguments and evidence against a Younger Dryas impact event. Climates, Landscapes, and Civilizations, eds Giosan L, Fuller DQ, Nicoll K, Flad RK, Clift PD (Amer Geophys Union, Washington, DC), Geophys Monograph Ser Vol 198, pp 13–26.

Position:

Against impact

Publication Title

Arguments and evidence against a Younger Dryas impact event. Climates, Landscapes, and Civilizations, eds Giosan L, Fuller DQ, Nicoll K, Flad RK, Clift PD (Amer Geophys Union, Washington, DC), Geophys Monograph Ser Vol 198, pp 13–26.

Position:

Against impact

Publication Title

No evidence of nanodiamonds in Younger-Dryas sediments to support an impact event

Position:

Against impact

Publication Title

No evidence of nanodiamonds in Younger-Dryas sediments to support an impact event

Position:

Against impact

Publication Title

No evidence of nanodiamonds in Younger-Dryas sediments to support an impact event

Position:

Against impact

Publication Title

No evidence of nanodiamonds in Younger-Dryas sediments to support an impact event

Position:

Against impact

Publication Title

The Murray Springs Clovis site, Pleistocene extinction, and the question of extraterrestrial impact

Position:

Against impact

Publication Title

The Murray Springs Clovis site, Pleistocene extinction, and the question of extraterrestrial impact

Position:

Against impact

Publication Title

The Murray Springs Clovis site, Pleistocene extinction, and the question of extraterrestrial impact

Position:

Against impact

Publication Title

The Murray Springs Clovis site, Pleistocene extinction, and the question of extraterrestrial impact

Position:

Against impact

Publication Title

Chronological evidence fails to support claim of an isochronous widespread layer of cosmic impact indicators dated to 12,800 years ago

Position:

Against impact

Publication Title

Chronological evidence fails to support claim of an isochronous widespread layer of cosmic impact indicators dated to 12,800 years ago

Position:

Against impact

Publication Title

Chronological evidence fails to support claim of an isochronous widespread layer of cosmic impact indicators dated to 12,800 years ago

Position:

Against impact

Publication Title

Chronological evidence fails to support claim of an isochronous widespread layer of cosmic impact indicators dated to 12,800 years ago

Position:

Against impact

Publication Title

Absence of geochemical evidence for an impact event at the Bølling–Allerød/Younger Dryas transition

Position:

Against impact

Publication Title

Absence of geochemical evidence for an impact event at the Bølling–Allerød/Younger Dryas transition

Position:

Against impact

Publication Title

Absence of geochemical evidence for an impact event at the Bølling–Allerød/Younger Dryas transition

Position:

Against impact

Publication Title

Absence of geochemical evidence for an impact event at the Bølling–Allerød/Younger Dryas transition

Position:

Against impact

Publication Title

Accumulation of "impact markers" in desert wetlands and implications for the Younger Dryas impact hypothesis

Position:

Against impact

Publication Title

Accumulation of "impact markers" in desert wetlands and implications for the Younger Dryas impact hypothesis

Position:

Against impact

Publication Title

Accumulation of "impact markers" in desert wetlands and implications for the Younger Dryas impact hypothesis

Position:

Against impact

Publication Title

Accumulation of "impact markers" in desert wetlands and implications for the Younger Dryas impact hypothesis

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: A requiem

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: A requiem

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: A requiem

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: A requiem

Position:

Against impact

Publication Title

Fungus, not comet or catastrophe, accounts for carbonaceous spherules in the Younger Dryas “impact layer.” Geophys Res Lett 37(14):L14302.

Position:

Against impact

Publication Title

Fungus, not comet or catastrophe, accounts for carbonaceous spherules in the Younger Dryas “impact layer.” Geophys Res Lett 37(14):L14302.

Position:

Against impact

Publication Title

Fungus, not comet or catastrophe, accounts for carbonaceous spherules in the Younger Dryas “impact layer.” Geophys Res Lett 37(14):L14302.

Position:

Against impact

Publication Title

Fungus, not comet or catastrophe, accounts for carbonaceous spherules in the Younger Dryas “impact layer.” Geophys Res Lett 37(14):L14302.

Position:

Against impact

Publication Title

Surovell, T.A.; Holliday, V.T.; Gingerich, J.A.M.; Ketron, C.; Haynes, C.V.; Hilman, I.; Wagner, D.P.; Johnson, E.; Claeys, P., 2009. An Independent Evaluation of the Younger Dryas Extraterrestrial Impact Hypothesis. Proc Natl Acad Sci U S A 104: 18155–18158.

Position:

Against impact

Publication Title

Surovell, T.A.; Holliday, V.T.; Gingerich, J.A.M.; Ketron, C.; Haynes, C.V.; Hilman, I.; Wagner, D.P.; Johnson, E.; Claeys, P., 2009. An Independent Evaluation of the Younger Dryas Extraterrestrial Impact Hypothesis. Proc Natl Acad Sci U S A 104: 18155–18158.

Position:

Against impact

Publication Title

Surovell, T.A.; Holliday, V.T.; Gingerich, J.A.M.; Ketron, C.; Haynes, C.V.; Hilman, I.; Wagner, D.P.; Johnson, E.; Claeys, P., 2009. An Independent Evaluation of the Younger Dryas Extraterrestrial Impact Hypothesis. Proc Natl Acad Sci U S A 104: 18155–18158.

Position:

Against impact

Publication Title

Surovell, T.A.; Holliday, V.T.; Gingerich, J.A.M.; Ketron, C.; Haynes, C.V.; Hilman, I.; Wagner, D.P.; Johnson, E.; Claeys, P., 2009. An Independent Evaluation of the Younger Dryas Extraterrestrial Impact Hypothesis. Proc Natl Acad Sci U S A 104: 18155–18158.

Position:

Against impact

Publication Title

Nanodiamonds do not provide unique evidence for a Younger Dryas impact

Position:

Against impact

Publication Title

Nanodiamonds do not provide unique evidence for a Younger Dryas impact

Position:

Against impact

Publication Title

Nanodiamonds do not provide unique evidence for a Younger Dryas impact

Position:

Against impact

Publication Title

Nanodiamonds do not provide unique evidence for a Younger Dryas impact

Position:

Against impact

Publication Title

Nanodiamonds and wildfire evidence in the Usselo Horizon postdate the Allerød-Younger Dryas boundary

Position:

Against impact

Publication Title

Nanodiamonds and wildfire evidence in the Usselo Horizon postdate the Allerød-Younger Dryas boundary

Position:

Against impact

Publication Title

Nanodiamonds and wildfire evidence in the Usselo Horizon postdate the Allerød-Younger Dryas boundary

Position:

Against impact

Publication Title

Nanodiamonds and wildfire evidence in the Usselo Horizon postdate the Allerød-Younger Dryas boundary

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: a critical review

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: a critical review

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: a critical review

Position:

Against impact

Publication Title

The Younger Dryas impact hypothesis: a critical review

Position:

Against impact

Publication Title

Widespread platinum anomaly documented at the Younger Dryas onset in North American sedimentary sequences

Position:

Supports impact

Publication Title

Widespread platinum anomaly documented at the Younger Dryas onset in North American sedimentary sequences

Position:

Supports impact

Publication Title

Widespread platinum anomaly documented at the Younger Dryas onset in North American sedimentary sequences

Position:

Supports impact

Publication Title

Widespread platinum anomaly documented at the Younger Dryas onset in North American sedimentary sequences

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 1. Ice Cores and Glaciers.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 1. Ice Cores and Glaciers.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 1. Ice Cores and Glaciers.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 1. Ice Cores and Glaciers.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 2. Lake, Marine, and Terrestrial Sediments.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 2. Lake, Marine, and Terrestrial Sediments.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 2. Lake, Marine, and Terrestrial Sediments.

Position:

Supports impact

Publication Title

Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ∼12,800 Years Ago. 2. Lake, Marine, and Terrestrial Sediments.

Position:

Supports impact