Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka
A widespread platinum (Pt) anomaly was recently documented in Greenland ice and 11 North American sedimentary sequences at the onset of the Younger Dryas (YD) event (~12,800 cal yr BP), consistent with the YD Impact Hypothesis. We report high-resolution analyses of a 1-meter section of a lake core f...
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ftpubmed:oai:pubmedcentral.nih.gov:6805854 2023-05-15T16:29:34+02:00 Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka Moore, Christopher R. Brooks, Mark J. Goodyear, Albert C. Ferguson, Terry A. Perrotti, Angelina G. Mitra, Siddhartha Listecki, Ashlyn M. King, Bailey C. Mallinson, David J. Lane, Chad S. Kapp, Joshua D. West, Allen Carlson, David L. Wolbach, Wendy S. Them, Theodore R. Harris, M. Scott Pyne-O’Donnell, Sean 2019-10-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6805854/ http://www.ncbi.nlm.nih.gov/pubmed/31641142 https://doi.org/10.1038/s41598-019-51552-8 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6805854/ http://www.ncbi.nlm.nih.gov/pubmed/31641142 http://dx.doi.org/10.1038/s41598-019-51552-8 © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2019 ftpubmed https://doi.org/10.1038/s41598-019-51552-8 2019-10-27T00:34:05Z A widespread platinum (Pt) anomaly was recently documented in Greenland ice and 11 North American sedimentary sequences at the onset of the Younger Dryas (YD) event (~12,800 cal yr BP), consistent with the YD Impact Hypothesis. We report high-resolution analyses of a 1-meter section of a lake core from White Pond, South Carolina, USA. After developing a Bayesian age-depth model that brackets the late Pleistocene through early Holocene, we analyzed and quantified the following: (1) Pt and palladium (Pd) abundance, (2) geochemistry of 58 elements, (3) coprophilous spores, (4) sedimentary organic matter (OC and sedaDNA), (5) stable isotopes of C (δ(13)C) and N (δ(15)N), (6) soot, (7) aciniform carbon, (8) cryptotephra, (9) mercury (Hg), and (10) magnetic susceptibility. We identified large Pt and Pt/Pd anomalies within a 2-cm section dated to the YD onset (12,785 ± 58 cal yr BP). These anomalies precede a decline in coprophilous spores and correlate with an abrupt peak in soot and C/OC ratios, indicative of large-scale regional biomass burning. We also observed a relatively large excursion in δ(15)N values, indicating rapid climatic and environmental/hydrological changes at the YD onset. Our results are consistent with the YD Impact Hypothesis and impact-related environmental and ecological changes. Text Greenland PubMed Central (PMC) Carbon Peak ENVELOPE(-122.636,-122.636,56.050,56.050) Greenland White Pond ENVELOPE(-62.857,-62.857,82.452,82.452) Scientific Reports 9 1 |
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Article Moore, Christopher R. Brooks, Mark J. Goodyear, Albert C. Ferguson, Terry A. Perrotti, Angelina G. Mitra, Siddhartha Listecki, Ashlyn M. King, Bailey C. Mallinson, David J. Lane, Chad S. Kapp, Joshua D. West, Allen Carlson, David L. Wolbach, Wendy S. Them, Theodore R. Harris, M. Scott Pyne-O’Donnell, Sean Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka |
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Article |
description |
A widespread platinum (Pt) anomaly was recently documented in Greenland ice and 11 North American sedimentary sequences at the onset of the Younger Dryas (YD) event (~12,800 cal yr BP), consistent with the YD Impact Hypothesis. We report high-resolution analyses of a 1-meter section of a lake core from White Pond, South Carolina, USA. After developing a Bayesian age-depth model that brackets the late Pleistocene through early Holocene, we analyzed and quantified the following: (1) Pt and palladium (Pd) abundance, (2) geochemistry of 58 elements, (3) coprophilous spores, (4) sedimentary organic matter (OC and sedaDNA), (5) stable isotopes of C (δ(13)C) and N (δ(15)N), (6) soot, (7) aciniform carbon, (8) cryptotephra, (9) mercury (Hg), and (10) magnetic susceptibility. We identified large Pt and Pt/Pd anomalies within a 2-cm section dated to the YD onset (12,785 ± 58 cal yr BP). These anomalies precede a decline in coprophilous spores and correlate with an abrupt peak in soot and C/OC ratios, indicative of large-scale regional biomass burning. We also observed a relatively large excursion in δ(15)N values, indicating rapid climatic and environmental/hydrological changes at the YD onset. Our results are consistent with the YD Impact Hypothesis and impact-related environmental and ecological changes. |
format |
Text |
author |
Moore, Christopher R. Brooks, Mark J. Goodyear, Albert C. Ferguson, Terry A. Perrotti, Angelina G. Mitra, Siddhartha Listecki, Ashlyn M. King, Bailey C. Mallinson, David J. Lane, Chad S. Kapp, Joshua D. West, Allen Carlson, David L. Wolbach, Wendy S. Them, Theodore R. Harris, M. Scott Pyne-O’Donnell, Sean |
author_facet |
Moore, Christopher R. Brooks, Mark J. Goodyear, Albert C. Ferguson, Terry A. Perrotti, Angelina G. Mitra, Siddhartha Listecki, Ashlyn M. King, Bailey C. Mallinson, David J. Lane, Chad S. Kapp, Joshua D. West, Allen Carlson, David L. Wolbach, Wendy S. Them, Theodore R. Harris, M. Scott Pyne-O’Donnell, Sean |
author_sort |
Moore, Christopher R. |
title |
Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka |
title_short |
Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka |
title_full |
Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka |
title_fullStr |
Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka |
title_full_unstemmed |
Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka |
title_sort |
sediment cores from white pond, south carolina, contain a platinum anomaly, pyrogenic carbon peak, and coprophilous spore decline at 12.8 ka |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6805854/ http://www.ncbi.nlm.nih.gov/pubmed/31641142 https://doi.org/10.1038/s41598-019-51552-8 |
long_lat |
ENVELOPE(-122.636,-122.636,56.050,56.050) ENVELOPE(-62.857,-62.857,82.452,82.452) |
geographic |
Carbon Peak Greenland White Pond |
geographic_facet |
Carbon Peak Greenland White Pond |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6805854/ http://www.ncbi.nlm.nih.gov/pubmed/31641142 http://dx.doi.org/10.1038/s41598-019-51552-8 |
op_rights |
© The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-51552-8 |
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Scientific Reports |
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