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

James P. Kennett; Douglas J. Kennett; Brendan J. Culleton; J. Emili Aura Tortosa; James L. Bischoff; Ted E. Bunch; I. Randolph Daniel; Jon M. Erlandson; David Ferraro; Richard B. Firestone; Albert C. Goodyear; Isabel Israde-Alcántara; John R. Johnson; Jesús F Jordá Pardo; David R. Kimbel; Malcolm A. LeCompte; Neal H. Lopinot; William C. Mahaney; Andrew M. T. Moore; Christopher R. Moore; Jack H. Ray; Thomas Stafford jr.; Kenneth Barnett Tankersley; James H. Wittke; Wendy S. Wolbach; Allen West

doi:10.1073/pnas.1507146112

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

James P. Kennett^*, Douglas J. Kennett, Brendan J. Culleton, J. Emili Aura Tortosa, James L. Bischoff, Ted E. Bunch, I. Randolph Daniel, Jon M. Erlandson, David Ferraro, Richard B. Firestone, Albert C. Goodyear, Isabel Israde-Alcántara, John R. Johnson, Jesús F Jordá Pardo, David R. Kimbel, Malcolm A. LeCompte, Neal H. Lopinot, William C. Mahaney, Andrew M. T. Moore, Christopher R. MooreJack H. Ray, Thomas Stafford jr., Kenneth Barnett Tankersley, James H. Wittke, Wendy S. Wolbach, Allen West

^*Corresponding author af dette arbejde

43 Citationer (Scopus)

Abstract

The Younger Dryas impact hypothesis posits that a cosmic impact across much of the Northern Hemisphere deposited the Younger Dryas boundary (YDB) layer, containing peak abundances in a variable assemblage of proxies, including magnetic and glassy impact-related spherules, high-temperature minerals and melt glass, nanodiamonds, carbon spherules, aciniform carbon, platinum, and osmium. Bayesian chronological modeling was applied to 354 dates from 23 stratigraphic sections in 12 countries on four continents to establish a modeled YDB age range for this event of 12,835-12,735 Cal B.P. at 95% probability. This range overlaps that of a peak in extraterrestrial platinum in the Greenland Ice Sheet and of the earliest age of the Younger Dryas climate episode in six proxy records, suggesting a causal connection between the YDB impact event and the Younger Dryas. Two statistical tests indicate that both modeled and unmodeled ages in the 30 records are consistent with synchronous deposition of the YDB layer within the limits of dating uncertainty (100 y). The widespread distribution of the YDB layer suggests that it may serve as a datum layer.

Originalsprog	Engelsk
Tidsskrift	Proceedings of the National Academy of Science of the United States of America
Vol/bind	112
Udgave nummer	32
Sider (fra-til)	E4344-E4353
Antal sider	10
ISSN	0027-8424
DOI	https://doi.org/10.1073/pnas.1507146112
Status	Udgivet - 2015

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Kennett, J. P., Kennett, D. J., Culleton, B. J., Tortosa, J. E. A., Bischoff, J. L., Bunch, T. E., Daniel, I. R., Erlandson, J. M., Ferraro, D., Firestone, R. B., Goodyear, A. C., Israde-Alcántara, I., Johnson, J. R., Pardo, J. F. J., Kimbel, D. R., LeCompte, M. A., Lopinot, N. H., Mahaney, W. C., Moore, A. M. T., ... West, A. (2015). Bayesian chronological analyses consistent with synchronous age of 12,835-12,735 Cal B.P. for Younger Dryas boundary on four continents. Proceedings of the National Academy of Science of the United States of America, 112(32), E4344-E4353. https://doi.org/10.1073/pnas.1507146112

Bayesian chronological analyses consistent with synchronous age of 12,835-12,735 Cal B.P. for Younger Dryas boundary on four continents. / Kennett, James P.; Kennett, Douglas J.; Culleton, Brendan J. et al.

I: Proceedings of the National Academy of Science of the United States of America, Bind 112, Nr. 32, 2015, s. E4344-E4353.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

Kennett, JP, Kennett, DJ, Culleton, BJ, Tortosa, JEA, Bischoff, JL, Bunch, TE, Daniel, IR, Erlandson, JM, Ferraro, D, Firestone, RB, Goodyear, AC, Israde-Alcántara, I, Johnson, JR, Pardo, JFJ, Kimbel, DR, LeCompte, MA, Lopinot, NH, Mahaney, WC, Moore, AMT, Moore, CR, Ray, JH, Stafford jr., T, Tankersley, KB, Wittke, JH, Wolbach, WS & West, A 2015, 'Bayesian chronological analyses consistent with synchronous age of 12,835-12,735 Cal B.P. for Younger Dryas boundary on four continents', Proceedings of the National Academy of Science of the United States of America, bind 112, nr. 32, s. E4344-E4353. https://doi.org/10.1073/pnas.1507146112

@article{dee222aba81842679be4762a474e7b37,

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

abstract = "The Younger Dryas impact hypothesis posits that a cosmic impact across much of the Northern Hemisphere deposited the Younger Dryas boundary (YDB) layer, containing peak abundances in a variable assemblage of proxies, including magnetic and glassy impact-related spherules, high-temperature minerals and melt glass, nanodiamonds, carbon spherules, aciniform carbon, platinum, and osmium. Bayesian chronological modeling was applied to 354 dates from 23 stratigraphic sections in 12 countries on four continents to establish a modeled YDB age range for this event of 12,835-12,735 Cal B.P. at 95% probability. This range overlaps that of a peak in extraterrestrial platinum in the Greenland Ice Sheet and of the earliest age of the Younger Dryas climate episode in six proxy records, suggesting a causal connection between the YDB impact event and the Younger Dryas. Two statistical tests indicate that both modeled and unmodeled ages in the 30 records are consistent with synchronous deposition of the YDB layer within the limits of dating uncertainty (100 y). The widespread distribution of the YDB layer suggests that it may serve as a datum layer.",

keywords = "Bayesian, Comet, Radiocarbon, Synchroneity, Younger Dryas",

author = "Kennett, {James P.} and Kennett, {Douglas J.} and Culleton, {Brendan J.} and Tortosa, {J. Emili Aura} and Bischoff, {James L.} and Bunch, {Ted E.} and Daniel, {I. Randolph} and Erlandson, {Jon M.} and David Ferraro and Firestone, {Richard B.} and Goodyear, {Albert C.} and Isabel Israde-Alc{\'a}ntara and Johnson, {John R.} and Pardo, {Jes{\'u}s F Jord{\'a}} and Kimbel, {David R.} and LeCompte, {Malcolm A.} and Lopinot, {Neal H.} and Mahaney, {William C.} and Moore, {Andrew M. T.} and Moore, {Christopher R.} and Ray, {Jack H.} and {Stafford jr.}, Thomas and Tankersley, {Kenneth Barnett} and Wittke, {James H.} and Wolbach, {Wendy S.} and Allen West",

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T1 - Bayesian chronological analyses consistent with synchronous age of 12,835-12,735 Cal B.P. for Younger Dryas boundary on four continents

AU - Kennett, James P.

AU - Kennett, Douglas J.

AU - Culleton, Brendan J.

AU - Tortosa, J. Emili Aura

AU - Bischoff, James L.

AU - Bunch, Ted E.

AU - Daniel, I. Randolph

AU - Erlandson, Jon M.

AU - Ferraro, David

AU - Firestone, Richard B.

AU - Goodyear, Albert C.

AU - Israde-Alcántara, Isabel

AU - Johnson, John R.

AU - Pardo, Jesús F Jordá

AU - Kimbel, David R.

AU - LeCompte, Malcolm A.

AU - Lopinot, Neal H.

AU - Mahaney, William C.

AU - Moore, Andrew M. T.

AU - Moore, Christopher R.

AU - Ray, Jack H.

AU - Stafford jr., Thomas

AU - Tankersley, Kenneth Barnett

AU - Wittke, James H.

AU - Wolbach, Wendy S.

AU - West, Allen

PY - 2015

Y1 - 2015

N2 - The Younger Dryas impact hypothesis posits that a cosmic impact across much of the Northern Hemisphere deposited the Younger Dryas boundary (YDB) layer, containing peak abundances in a variable assemblage of proxies, including magnetic and glassy impact-related spherules, high-temperature minerals and melt glass, nanodiamonds, carbon spherules, aciniform carbon, platinum, and osmium. Bayesian chronological modeling was applied to 354 dates from 23 stratigraphic sections in 12 countries on four continents to establish a modeled YDB age range for this event of 12,835-12,735 Cal B.P. at 95% probability. This range overlaps that of a peak in extraterrestrial platinum in the Greenland Ice Sheet and of the earliest age of the Younger Dryas climate episode in six proxy records, suggesting a causal connection between the YDB impact event and the Younger Dryas. Two statistical tests indicate that both modeled and unmodeled ages in the 30 records are consistent with synchronous deposition of the YDB layer within the limits of dating uncertainty (100 y). The widespread distribution of the YDB layer suggests that it may serve as a datum layer.

AB - The Younger Dryas impact hypothesis posits that a cosmic impact across much of the Northern Hemisphere deposited the Younger Dryas boundary (YDB) layer, containing peak abundances in a variable assemblage of proxies, including magnetic and glassy impact-related spherules, high-temperature minerals and melt glass, nanodiamonds, carbon spherules, aciniform carbon, platinum, and osmium. Bayesian chronological modeling was applied to 354 dates from 23 stratigraphic sections in 12 countries on four continents to establish a modeled YDB age range for this event of 12,835-12,735 Cal B.P. at 95% probability. This range overlaps that of a peak in extraterrestrial platinum in the Greenland Ice Sheet and of the earliest age of the Younger Dryas climate episode in six proxy records, suggesting a causal connection between the YDB impact event and the Younger Dryas. Two statistical tests indicate that both modeled and unmodeled ages in the 30 records are consistent with synchronous deposition of the YDB layer within the limits of dating uncertainty (100 y). The widespread distribution of the YDB layer suggests that it may serve as a datum layer.

KW - Bayesian

KW - Comet

KW - Radiocarbon

KW - Synchroneity

KW - Younger Dryas

U2 - 10.1073/pnas.1507146112

DO - 10.1073/pnas.1507146112

M3 - Journal article

C2 - 26216981

AN - SCOPUS:84938916985

SN - 0027-8424

VL - 112

SP - E4344-E4353

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

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

IS - 32

ER -

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

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