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Climate history / Precious metals / Extinction events / Noble metals / Transition metals / Osmium / Younger Dryas impact hypothesis / Isotope geochemistry / Iridium / Phanerozoic / Geologic time scale / Geology


Absence of geochemical evidence for an impact event at the Bølling–Allerød/Younger Dryas transition Franc¸ois S. Paquaya,1, Steven Goderisb,c, Greg Ravizzaa, Frank Vanhaeckc, Matthew Boydd, Todd A. Surovelle,
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City

River / Tucson / Tamaulipas / Dewey / Oxford / College Station / Berlin / Beloc / Ghent / Honolulu / Petriccio / Brussels / Laramie / Arlington / /

Company

Cambridge University Press / Brown / S.G. / GeoScience Consulting / Planetary Laboratory / GE / Carlson AE / Ni Co / Peterson LC / T.A.S. V.T. / HP / Hunt AG / F.S.P. / /

Continent

North America / Europe / Antarctica / /

Country

Germany / Greenland / Italy / Haiti / Mexico / South Africa / Belgium / Russia / Canada / Botswana / United Kingdom / Finland / /

Currency

pence / /

/

Event

Natural Disaster / Man-Made Disaster / Reorganization / /

Facility

Lakehead University / Hall GEM / University of Arizona / University of Hawaii / University of Wyoming / Purdue University / /

IndustryTerm

reagents/analytic tools / alteration products / diagnostic tool / /

NaturalFeature

Ancient / Carolina Bay / Clearwater East crater / Baltic Sea / Howard Bay / Ontong Java Plateau / St Lawrence estuary / Pacific Ocean / Lake Lubbock / Gulf of California / Popigai crater / Hudson estuary / /

Organization

Cambridge University / Department of Geology / Geological Society of America Research Grant / National Science Foundation / School of Ocean / Univ of Arizona Press / School of Ocean and Earth Science / Purdue University / Institute for the Promotion of Innovation / University of Wyoming / University of Hawaii / Lakehead University / University of Arizona / Geophys Union / /

Person

Jay Melosh / Craig Armstrong / Denys Vonderhaar / Bernhard Peucker-Ehrenbrink / Allen West / Matthew Boydd / Dolores Hill / C. Vance Haynes / Jr. / Murray Springs / Frank Vanhaeckc / Greg Ravizzaa / Steven Goderisb / Philippe Claeysb / Gary Huss / Ferdi Geerts / S. Paquaya / Todd A. Surovelle / Vance T. Hollidayf / Phil Trans / Jan Kloosterman / Carolina Bays / /

Position

Schmitt RT / ejecta Author / Clausen HB / representative / /

ProvinceOrState

Texas / Wyoming / M.B. / Hawaii / Manitoba / California / Arizona / /

PublishedMedium

Analytical Chemistry / Terra Nova / /

Region

North Atlantic / western Europe / central Greenland / /

Technology

Geophysics / Java / /

URL

www.unb.ca/passc/ImpactDatabase / www.pnas.org͞cgi͞doi͞10.1073͞pnas.0908874106 / www.pnas.org/cgi/content/full / /

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