Literature DB >> 19822748

An independent evaluation of the Younger Dryas extraterrestrial impact hypothesis.

Todd A Surovell1, Vance T Holliday, Joseph A M Gingerich, Caroline Ketron, C Vance Haynes, Ilene Hilman, Daniel P Wagner, Eileen Johnson, Philippe Claeys.   

Abstract

Based on elevated concentrations of a set of "impact markers" at the onset of the Younger Dryas stadial from sedimentary contexts across North America, Firestone, Kennett, West, and others have argued that 12.9 ka the Earth experienced an impact by an extraterrestrial body, an event that had devastating ecological consequences for humans, plants, and animals in the New World [Firestone RB, et al. (2007) Proc. Natl. Acad. Sci. USA 104:16016-16021]. Herein, we report the results of an independent analysis of magnetic minerals and microspherules from seven sites of similar age, including two examined by Firestone et al. We were unable to reproduce any results of the Firestone et al. study and find no support for Younger Dryas extraterrestrial impact.

Entities:  

Year:  2009        PMID： 19822748      PMCID： PMC2775309          DOI： 10.1073/pnas.0907857106

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  7 in total

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

Authors:  Michael R Waters; Thomas W Stafford
Journal:  Science       Date:  2007-02-23       Impact factor: 47.728

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

Authors:  R B Firestone; A West; J P Kennett; L Becker; T E Bunch; Z S Revay; P H Schultz; T Belgya; D J Kennett; J M Erlandson; O J Dickenson; A C Goodyear; R S Harris; G A Howard; J B Kloosterman; P Lechler; P A Mayewski; J Montgomery; R Poreda; T Darrah; S S Que Hee; A R Smith; A Stich; W Topping; J H Wittke; W S Wolbach
Journal:  Proc Natl Acad Sci U S A       Date:  2007-09-27       Impact factor: 11.205

3.  Wildfire responses to abrupt climate change in North America.

Authors:  J R Marlon; P J Bartlein; M K Walsh; S P Harrison; K J Brown; M E Edwards; P E Higuera; M J Power; R S Anderson; C Briles; A Brunelle; C Carcaillet; M Daniels; F S Hu; M Lavoie; C Long; T Minckley; P J H Richard; A C Scott; D S Shafer; W Tinner; C E Umbanhowar; C Whitlock
Journal:  Proc Natl Acad Sci U S A       Date:  2009-02-03       Impact factor: 11.205

4.  Nanodiamonds in the Younger Dryas boundary sediment layer.

Authors:  D J Kennett; J P Kennett; A West; C Mercer; S S Que Hee; L Bement; T E Bunch; M Sellers; W S Wolbach
Journal:  Science       Date:  2009-01-02       Impact factor: 47.728

5.  Paleoindian demography and the extraterrestrial impact hypothesis.

Authors:  Briggs Buchanan; Mark Collard; Kevan Edinborough
Journal:  Proc Natl Acad Sci U S A       Date:  2008-08-12       Impact factor: 11.205

6.  Younger Dryas "black mats" and the Rancholabrean termination in North America.

Authors:  C Vance Haynes
Journal:  Proc Natl Acad Sci U S A       Date:  2008-04-24       Impact factor: 11.205

7.  Shock-synthesized hexagonal diamonds in Younger Dryas boundary sediments.

Authors:  Douglas J Kennett; James P Kennett; Allen West; G James West; Ted E Bunch; Brendan J Culleton; Jon M Erlandson; Shane S Que Hee; John R Johnson; Chris Mercer; Feng Shen; Marilee Sellers; Thomas W Stafford; Adrienne Stich; James C Weaver; James H Wittke; Wendy S Wolbach
Journal:  Proc Natl Acad Sci U S A       Date:  2009-07-20       Impact factor: 11.205
  7 in total
  21 in total

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

Authors:  Jeffrey S Pigati; Claudio Latorre; Jason A Rech; Julio L Betancourt; Katherine E Martínez; James R Budahn
Journal:  Proc Natl Acad Sci U S A       Date:  2012-04-23       Impact factor: 11.205

2.  Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis.

Authors:  Isabel Israde-Alcántara; James L Bischoff; Gabriela Domínguez-Vázquez; Hong-Chun Li; Paul S DeCarli; Ted E Bunch; James H Wittke; James C Weaver; Richard B Firestone; Allen West; James P Kennett; Chris Mercer; Sujing Xie; Eric K Richman; Charles R Kinzie; Wendy S Wolbach
Journal:  Proc Natl Acad Sci U S A       Date:  2012-03-05       Impact factor: 11.205

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

Authors:  Ted E Bunch; Robert E Hermes; Andrew M T Moore; Douglas J Kennett; James C Weaver; James H Wittke; Paul S DeCarli; James L Bischoff; Gordon C Hillman; George A Howard; David R Kimbel; Gunther Kletetschka; Carl P Lipo; Sachiko Sakai; Zsolt Revay; Allen West; Richard B Firestone; James P Kennett
Journal:  Proc Natl Acad Sci U S A       Date:  2012-06-18       Impact factor: 11.205

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

Authors:  C Vance Haynes; J Boerner; K Domanik; D Lauretta; J Ballenger; J Goreva
Journal:  Proc Natl Acad Sci U S A       Date:  2010-02-16       Impact factor: 11.205

5.  Reply to Boslough: Prior studies validating research are ignored.

Authors:  Malcolm A LeCompte; Dale Batchelor; Mark N Demitroff; Edward K Vogel; Charles Mooney; Barrett N Rock; Alfred W Seidel
Journal:  Proc Natl Acad Sci U S A       Date:  2013-04-30       Impact factor: 11.205

6.  Evidence for deposition of 10 million tonnes of impact spherules across four continents 12,800 y ago.

Authors:  James H Wittke; James C Weaver; Ted E Bunch; James P Kennett; Douglas J Kennett; Andrew M T Moore; Gordon C Hillman; Kenneth B Tankersley; Albert C Goodyear; Christopher R Moore; I Randolph Daniel; Jack H Ray; Neal H Lopinot; David Ferraro; Isabel Israde-Alcántara; James L Bischoff; Paul S DeCarli; Robert E Hermes; Johan B Kloosterman; Zsolt Revay; George A Howard; David R Kimbel; Gunther Kletetschka; Ladislav Nabelek; Carl P Lipo; Sachiko Sakai; Allen West; Richard B Firestone
Journal:  Proc Natl Acad Sci U S A       Date:  2013-05-20       Impact factor: 11.205

7.  Impact theory under fire once more.

Authors:  Rex Dalton
Journal:  Nature       Date:  2009-10-15       Impact factor: 49.962

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

Authors:  Malcolm A LeCompte; Albert C Goodyear; Mark N Demitroff; Dale Batchelor; Edward K Vogel; Charles Mooney; Barrett N Rock; Alfred W Seidel
Journal:  Proc Natl Acad Sci U S A       Date:  2012-09-17       Impact factor: 11.205

9.  Faulty protocols yield contaminated samples, unconfirmed results.

Authors:  Mark Boslough
Journal:  Proc Natl Acad Sci U S A       Date:  2013-04-18       Impact factor: 11.205

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

Authors:  David J Meltzer; Vance T Holliday; Michael D Cannon; D Shane Miller
Journal:  Proc Natl Acad Sci U S A       Date:  2014-05-12       Impact factor: 11.205
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