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

Proceedings of the National Academy of Sciences of the United States of America

Volumn 110, Issue 23, 2013, Pages

  Wittke, James H ^a   Weaver, James C ^b   Bunch, Ted E ^a   Kennett, James P ^c   Kennett, Douglas J ^d   Moore, Andrew M T ^e   Hillman, Gordon C ^f   Tankersley, Kenneth B ^g   Goodyear, Albert C ^h   Moore, Christopher R ^h   Daniel, I Randolph ⁱ   Ray, Jack H ^j   Lopinot, Neal H ^j   Ferraro, David ^k   Israde Alcántara, Isabel ^l   Bischoff, James L ^m   DeCarli, Paul S ⁿ   Hermes, Robert E ^o   Kloosterman, Johan B ^p   Revay, Zsolt ^q   Howard, George A ^r   Kimbel, David R ^s   Kletetschka, Gunther ^t   Nabelek, Ladislav ^t,u   Lipo, Carl P ^v   Sakai, Sachiko ^v   West, Allen ^w   Firestone, Richard B ^x   more..

^a NORTHERN ARIZONA UNIVERSITY   (United States)

^b HARVARD UNIVERSITY   (United States)

^c UNIVERSITY OF CALIFORNIA   (United States)

^d PENNSYLVANIA STATE UNIVERSITY   (United States)

^e ROCHESTER INSTITUTE OF TECHNOLOGY   (United States)

^f UNIVERSITY COLLEGE LONDON   (United Kingdom)

^g UNIVERSITY OF CINCINNATI   (United States)

^h UNIVERSITY OF SOUTH CAROLINA   (United States)

ⁱ EAST CAROLINA UNIVERSITY   (United States)

^j MISSOURI STATE UNIVERSITY   (United States)

^k Viejo California Assoc   (United States)

^l UNIVERSIDAD MICHOACANA DE SAN NICOLÁS DE HIDALGO   (Mexico)

^m U S GEOLOGICAL SURVEY   (United States)

ⁿ SRI INTERNATIONAL   (United States)

^o LOS ALAMOS NATIONAL LABORATORY   (United States)

^p Exploration Geologist   (Netherlands)

^q TECHNICAL UNIVERSITY OF MUNICH   (Germany)

^r Restoration Systems LLC   (United States)

^s Kimstar Research   (United States)

^t CHARLES UNIVERSITY   (Czech Republic)

^u INSTITUTE OF GEOLOGY   (Czech Republic)

^v CALIFORNIA STATE UNIVERSITY   (United States)

^w GeoScience Consulting Dewey   (United States)

^x LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

more..

Author keywords

Clovis Folsom; Lechatelierite; Tektite; Wildfires

Indexed keywords

MICROSPHERE; NANODIAMOND;

AIR; ARCHEOLOGY; ARTICLE; ASTRONOMY; ATMOSPHERE; BIOMASS; ENERGY DISPERSIVE X RAY SPECTROSCOPY; EUROPE; GEOCHEMICAL ANALYSIS; GEOCHEMISTRY; INCINERATION; LABORATORY; LIGHTNING; MELTING POINT; MIDDLE EAST; MORPHOLOGY; NORTH AMERICA; PLEISTOCENE; PRIORITY JOURNAL; RADIATION; ROENTGEN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SEDIMENT; TEMPERATURE; THERMAL RADIATION; WOOD;

SPHERULES;

EID: 84878681783     PISSN: 00278424     EISSN: 10916490     Source Type: Journal    
DOI: 10.1073/pnas.1301760110     Document Type: Article

References (65)

1. Firestone RB, et al. (2007) Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling. Proc Natl Acad Sci USA 104(41):16016-16021.
2. Kennett DJ, et al. (2008) 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 27:2530-2545.
3. Kennett DJ, et al. (2009) Shock-synthesized hexagonal diamonds in Younger Dryas boundary sediments. Proc Natl Acad Sci USA 106(31):12623-12628.
4. Kennett DJ, et al. (2009) Nanodiamonds in the Younger Dryas boundary sediment layer. Science 323(5910):94.
5. Kurbatov AV, et al. (2011) Discovery of a nanodiamond-rich layer in the Greenland ice sheet. J Glaciol 56:749-759.
6. Anderson DG, et al. (2011) Multiple lines of evidence for possible Human population decline/settlement reorganization during the early Younger Dryas. Quat Int 242: 570-593.
7. Israde-Alcántara I, et al. (2012) Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis. Proc Natl Acad Sci USA 109(13):E738-E747.
8. Bunch TE, et al. (2012) Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago. Proc Natl Acad Sci USA 109(28): E1903-E1912.
9. Jones TL, Kennett DK (2012) . A land impacted? The Younger Dryas boundary event in California. Contemporary Issues in California Archaeology, eds Jones TL, Perry JE (Left Coast, Walnut Creek, CA), pp 37-48.
10. Surovell TA, et al. (2009) An independent evaluation of the Younger Dryas extraterrestrial impact hypothesis. Proc Natl Acad Sci USA 106(43):18155-18158.
11. Pinter N, et al. (2011) The Younger Dryas impact hypothesis: A requiem. Earth Sci Rev 106:247-264.
12. Boslough MBE, et al. (2012) Arguments and evidence against a Younger Dryas Impact Event. Geophys Monogr Ser 198:13-26.
13. LeCompte MA, et al. (2012) Independent evaluation of conflicting microspherule results from different investigations of the Younger Dryas impact hypothesis. Proc Natl Acad Sci USA 109(44):E2960-E2969, 10.1073/pnas.1208603109.
14. Pigati JS, et al. (2012) Accumulation of impact markers in desert wetlands and implications for the Younger Dryas impact hypothesis. Proc Natl Acad Sci USA 109(19): 7208-7212.
15. Fayek M, Anovitz LM, Allard LF, Hull S (2012) Framboidal iron oxide: chondrite-like material from the black mat, Murray Springs, Arizona. Earth Planet Sci Lett 319-320: 251-258.
16. Haynes CV, Jr., et al. (2010) The Murray Springs Clovis site, Pleistocene extinction, and the question of extraterrestrial impact. Proc Natl Acad Sci USA 107(9):4010-4015.
17. Wu Y (2011) Origin and provenance of magnetic spherules at the Younger Dryas boundary. PhD thesis (Dartmouth College, Hanover, NH).
18. Mahaney WC, Krinsley D (2012) Extreme heating events and effects in the natural environment: Implications for environmental geomorphology. Geomorphology 139-140:348-359.
19. Mahaney WC, et al. (2010) Evidence from the northwestern Venezuelan Andes for extraterrestrial impact: The black mat enigma. Geomorphology 116(1-2):48-57.
20. Mahaney WC, et al. (2011) Fired glaciofluvial sediment in the northwestern Andes: Biotic aspects of the Black Mat. Sediment Geol 237(1-2):73-83.
21. Mahaney WC, et al. (2011) Notes on the black mat sediment, Mucunuque Catchment, northern Mérida Andes, Venezuela. J Adv Microscop Res 6(3):177-185.
22. Wright FW, Hodge PW (1965) Studies of particles for extraterrestrial origin, Part 4. Microscopic spherules from recent volcanic eruptions. J Geophys Res 70(16): 3889-3898.
23. Scott AC, et al. (2010) Fungus, not comet or catastrophe, accounts for carbonaceous spherules in the Younger Dryas "impact layer". Geophys Res Lett 37(14):L14302.
24. Daulton TL, Pinter N, Scott AC (2010) No evidence of nanodiamonds in Younger-Dryas sediments to support an impact event. Proc Natl Acad Sci USA 107(37):16043-16047.
25. Glass BP, Swincki MB, Zwart PA (1979) Australasian, Ivory Coast and North American tektite strewnfields: Size, mass and correlation with geomagnetic reversals and other earth events. Proceedings of the 10th Annual Lunar Planet Science Conference (Pergamon, New York), pp 2535-2545.
26. Glass BP, Burns CA, Crosbie JR, DuBois DL (1985) Late Eocene North American microtektites and clinopyroxene-bearing spherules. J Geophys Res 90(S01):D17S-D196.
27. Glass BP, Huber H, Koeberl C (2004) Geochemistry of Cenozoic microtektites and clinopyroxene-bearing spherules. Geochim Cosmochim Acta 69:3971-4006.
28. Mathur SC, Gaur SD, Loyal RS, Tripathi A, Sisodia MS (2005) Spherules from the Late Cretaceous phosphorite of the Fatehgarh Formation, Barmer Basin, India. Gondwana Res 8:579-584.
29. Korchagin OA (2010) Metallic microspheres and microparticles in lower Cenomanian sediments of the Crimea: Evidence for the cosmic dust event. Dokl Earth Sci 431(Pt 2): 441-444.
30. Smit J (1990) Meteorite impact, extinctions and the Cretaceous-Tertiary boundary. Geol Mijnb 69:187-204.
31. Mukhopadhyay R, Iyer SD, Ghosh AK (2002) The Indian Ocean nodule field: Petrotectonic evolution and ferromanganese deposits. Earth Sci Rev 60:67-130.
32. Thy P (1995) Implications of prehistoric glassy biomass slag from east-central Botswana. J Archaeol Sci 22:629-637.
33. Hein JR, Griggs GB (1972) Distribution and scanning electron microscope (SEM) observations of authigenic pyrite from a Pacific deep-sea core. Deep Sea Res 19(2): 133-138.
34. Del Monte M, Sabbioni C (1984) Morphology and mineralogy of fly ash from a coalfueled power plant. Arch Met Geoph Biocl B 35(1-2):93-104.
35. Burleigh R, Meeks N (1986) Glassy microspherules from bomb combustion of charcoal. Radiocarbon 28(1):165-166.
36. Eby N, Hermes R, Charnley N, Smoliga JA (2010) Trinitite - the atomic rock. Geol Today 26:181-186.
37. Hermes RE, Strickfaden WB (2005) A new look at trinitite. Nucl Weap J 2:2-7.
38. Wasson JT (2003) Large aerial bursts: An important class of terrestrial accretionary events. Astrobiology 3(1):163-179.
39. Waters MR, Stafford TW, Jr. (2007) Redefining the age of Clovis: Implications for the peopling of the Americas. Science 315(5815):1122-1126.
40. Haynes CV, Jr. (2008) Younger Dryas "black mats" and the Rancholabrean termination in North America. Proc Natl Acad Sci USA 105(18):6520-6525.
41. Elkins-Tanton LT, Aussillous P, Bico J, Quere D, Bush JWM (2003) A laboratory model of splash-form tektites. Meteorit Planet Sci 38(9):1331-1340.
42. Brownlee DE, Bates B, Schramm L (1997) The elemental composition of stony cosmic spherules. Meteorit Planet Sci 32:157-175.
43. Kracek FC (1963) Melting and transformation temperatures of mineral and allied substances. Geological Survey Bulletin 1144-D (US Government Printing Office, Washington, DC).
44. Jull AJT, Donahue DJ, Cielaszyk E, Wlotzka F (1993) Carbon-14 terrestrial ages and weathering of 27 meteorites from the southern high plains and adjacent areas (USA). Meteoritics 28(2):188-195.
45. Taylor S, Brownlee DE (1991) Cosmic spherules in the geologic record. Meteoritics 26: 203-211.
46. Taylor S, Lever JH, Harvey RP (2000) Numbers, types, and compositions of an unbiased collection of cosmic spherules. Meteorit Planet Sci 35:651-666.
47. Nakamura E, et al. (2012) Space environment of an asteroid preserved on micrograins returned by the Hayabusa spacecraft. Proc Natl Acad Sci USA 109(11):E624-E629.
48. Flynn GJ, et al. (2006) Elemental compositions of comet 81P/Wild 2 samples collected by Stardust. Science 314(5806):1731-1735.
49. Daode W, Yongheng C (1996) The chemical compositions of Antarctic iron meteorites and their classification. Advances in Polar Science 7:41-49.
50. Maurette M, Pourchete M, Perreau M (1992) The 1991 EUROMET micrometeorite collection at Cap-Prudhomme, Antarctica. Meteoritics 27:473-475.
51. Badyukov DD, Ivanov AV, Raitala J, Khisina NR (2011) Spherules from the Tunguska event site: Could they originate from the Tunguska Cosmic Body? Geochem Int 49: 641-653.
52. McDonough WF (1991) Chemical and isotopic systematics of continental lithospheric mantle. Kimberlites, Related Rocks and Mantle Xenoliths, eds Meyer HOA, Leonardos OH (Companhia de Pesquisa de Recursos Minerais, Rio de Janeiro), Vol 1, pp 478-485.
53. Kletetschka G (2001) Electric discharge in carbonaceous meteorites? First Steps in the Origin of Life in the Universe, eds Chela-Flores J, et al. (Springer, Dordrecht), pp 157-159.
54. French BM (1998) Traces of Catastrophe: A Handbook of Shock-Metamorphic Effects in Terrestrial Meteorite Impact Structures. LPI Contribution No. 954 (Lunar and Planetary Inst, Houston), pp 102-103.
55. Kletetschka G, Kohout T, Wasilewski PJ (2003) Magnetic remanence in the Murchison meteorite. Meteorit Planet Sci 38(3):399-405.
56. Wasilewski P, Kletetschka G (1999) Lodestone: Natures only permanent magnet - what it is and how it gets charged. Geophys Res Lett 26(15):2275-2278.
57. Kletetschka G et al. (2006) TRM in low magnetic fields: a minimum field that can be recorded by large multidomain grains. Phys Earth Planet In 154(3-4):290-298.
58. Wasilewski P, Acuna MH, Kletetschka G (2002) 433 Eros: Problems with the meteorite magnetism record in attempting an asteroid match. Meteorit Planet Sci 37(7):937-950.
59. US Geological Survey (2001) Geochemistry of Soils in the US from the PLUTO Database (USGS, Reston, VA).
60. US Geological Survey (2008) Geochemistry of Rock Samples from the National Geochemical Database (US Geological Survey, Reston, VA), http://mrdata.usgs.gov/ngdb/rock/.
61. Koeberl C (1986) Geochemistry of tektites and impact glasses. Annu Rev Earth Planet Sci 14:323-350.
62. Claeys P, Casier J-G (1994) Microtektite-like impact glass associated with the Frasnian- Famennian boundary mass extinction. Earth Planet Sci Lett 122:303-315.
63. Glass BP, Senftle FE, Muenow DW, Aggrey KE, Thorpe AN (1987) Atomic bomb glass beads: Tektite and microtektite analogs. Proceedings of the Second International Conference on Natural Glasses, ed Konta J (Charles Univ, Prague), pp 361-369.
64. NapierWM(2010) Palaeolithic extinctions and the Taurid Complex. Mon Not R Astron Soc 405:1901-1906.
65. Boslough MBE, Crawford DA (2008) Low altitude airbursts and the impact threat. Int J Impact Eng 35(12):1441-1448.