Sediment Cores from White Pond, South Carolina, contain a Platinum Anomaly, Pyrogenic Carbon Peak, and Coprophilous Spore Decline at 12.8 ka
Abstract 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 la...
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Online Access: | http://dx.doi.org/10.1038/s41598-019-51552-8 http://www.nature.com/articles/s41598-019-51552-8.pdf http://www.nature.com/articles/s41598-019-51552-8 |
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crspringernat:10.1038/s41598-019-51552-8 2023-05-15T16:29:40+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 http://dx.doi.org/10.1038/s41598-019-51552-8 http://www.nature.com/articles/s41598-019-51552-8.pdf http://www.nature.com/articles/s41598-019-51552-8 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 9, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2019 crspringernat https://doi.org/10.1038/s41598-019-51552-8 2022-01-14T15:36:16Z Abstract 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. Article in Journal/Newspaper Greenland Springer Nature (via Crossref) 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 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary 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 |
topic_facet |
Multidisciplinary |
description |
Abstract 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 |
Article in Journal/Newspaper |
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 |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
http://dx.doi.org/10.1038/s41598-019-51552-8 http://www.nature.com/articles/s41598-019-51552-8.pdf http://www.nature.com/articles/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_source |
Scientific Reports volume 9, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-51552-8 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
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1766019376742400000 |