Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada
Oxygen-18 (δ18O) variations in a 36-centimeter-long core (DH-11) of vein calcite from Devils Hole, Nevada, yield an uninterrupted 500,000-year paleotemperature record that closely mimics all major features in the Vostok (Antarctica) paleotemperature and marine δ18O ice-volume records. The chronology...
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1992
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ftunisfloridatam:oai:digitalcommons.usf.edu:kip_articles-2124 2023-07-30T03:59:13+02:00 Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada Winograd, Isaac J. Coplen, Tyler B. Landwehr, Jurate M. Riggs, Alan C. Ludwig, Kenneth R. Szabo, Barney J. Kolesar, Peter T. Revesz, Kinga M. 1992-10-09T07:00:00Z https://digitalcommons.usf.edu/kip_articles/1125 https://doi.org/10.1126/science.258.5080.255 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/kip_articles/1125 https://doi.org/10.1126/science.258.5080.255 KIP Articles text 1992 ftunisfloridatam https://doi.org/10.1126/science.258.5080.255 2023-07-20T18:01:35Z Oxygen-18 (δ18O) variations in a 36-centimeter-long core (DH-11) of vein calcite from Devils Hole, Nevada, yield an uninterrupted 500,000-year paleotemperature record that closely mimics all major features in the Vostok (Antarctica) paleotemperature and marine δ18O ice-volume records. The chronology for this continental record is based on 21 replicated mass-spectrometric uranium-series dates. Between the middle and latest Pleistocene, the duration of the last four glacial cycles recorded in the calcite increased from 80,000 to 130,000 years; this variation suggests that major climate changes were aperiodic. The timing of specific climatic events indicates that orbitally controlled variations in solar insolation were not a major factor in triggering deglaciations. Interglacial climates lasted about 20,000 years. Collectively, these observations are inconsistent with the Milankovitch hypothesis for the origin of the Pleistocene glacial cycles but they are consistent with the thesis that these cycles originated from internal nonlinear feedbacks within the atmosphere-ice sheet-ocean system. Text Antarc* Antarctica Ice Sheet Digital Commons University of South Florida (USF) Devils Hole ENVELOPE(0.667,0.667,56.633,56.633) Science 258 5080 255 260 |
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Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
description |
Oxygen-18 (δ18O) variations in a 36-centimeter-long core (DH-11) of vein calcite from Devils Hole, Nevada, yield an uninterrupted 500,000-year paleotemperature record that closely mimics all major features in the Vostok (Antarctica) paleotemperature and marine δ18O ice-volume records. The chronology for this continental record is based on 21 replicated mass-spectrometric uranium-series dates. Between the middle and latest Pleistocene, the duration of the last four glacial cycles recorded in the calcite increased from 80,000 to 130,000 years; this variation suggests that major climate changes were aperiodic. The timing of specific climatic events indicates that orbitally controlled variations in solar insolation were not a major factor in triggering deglaciations. Interglacial climates lasted about 20,000 years. Collectively, these observations are inconsistent with the Milankovitch hypothesis for the origin of the Pleistocene glacial cycles but they are consistent with the thesis that these cycles originated from internal nonlinear feedbacks within the atmosphere-ice sheet-ocean system. |
format |
Text |
author |
Winograd, Isaac J. Coplen, Tyler B. Landwehr, Jurate M. Riggs, Alan C. Ludwig, Kenneth R. Szabo, Barney J. Kolesar, Peter T. Revesz, Kinga M. |
spellingShingle |
Winograd, Isaac J. Coplen, Tyler B. Landwehr, Jurate M. Riggs, Alan C. Ludwig, Kenneth R. Szabo, Barney J. Kolesar, Peter T. Revesz, Kinga M. Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada |
author_facet |
Winograd, Isaac J. Coplen, Tyler B. Landwehr, Jurate M. Riggs, Alan C. Ludwig, Kenneth R. Szabo, Barney J. Kolesar, Peter T. Revesz, Kinga M. |
author_sort |
Winograd, Isaac J. |
title |
Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada |
title_short |
Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada |
title_full |
Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada |
title_fullStr |
Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada |
title_full_unstemmed |
Continuous 500,000-Year Climate Record from Vein Calcite in Devils Hole, Nevada |
title_sort |
continuous 500,000-year climate record from vein calcite in devils hole, nevada |
publisher |
Digital Commons @ University of South Florida |
publishDate |
1992 |
url |
https://digitalcommons.usf.edu/kip_articles/1125 https://doi.org/10.1126/science.258.5080.255 |
long_lat |
ENVELOPE(0.667,0.667,56.633,56.633) |
geographic |
Devils Hole |
geographic_facet |
Devils Hole |
genre |
Antarc* Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctica Ice Sheet |
op_source |
KIP Articles |
op_relation |
https://digitalcommons.usf.edu/kip_articles/1125 https://doi.org/10.1126/science.258.5080.255 |
op_doi |
https://doi.org/10.1126/science.258.5080.255 |
container_title |
Science |
container_volume |
258 |
container_issue |
5080 |
container_start_page |
255 |
op_container_end_page |
260 |
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1772809956176691200 |