The Paleocene-Eocene boundary in ODP Leg 208 sites
The Paleocene-Eocene thermal maximum (PETM) has been attributed to the rapid release of ~2000 * 10**9 metric tons of carbon in the form of methane. In theory, oxidation and ocean absorption of this carbon should have lowerd deep-sea pH, thereby triggering a rapid (<10,000-year) shoaling of the ca...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.772051 2023-05-15T18:21:11+02:00 The Paleocene-Eocene boundary in ODP Leg 208 sites Zachos, James C Röhl, Ursula Schellenberg, Stephen A Sluijs, Appy Hodell, David A Kelly, Daniel Clay Thomas, Ellen Nicolo, Micah J Raffi, Isabella Lourens, Lucas Joost McCarren, H Kroon, Dick MEDIAN LATITUDE: -27.964378 * MEDIAN LONGITUDE: 2.140817 * SOUTH-BOUND LATITUDE: -28.835017 * WEST-BOUND LONGITUDE: 1.577000 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.779630 * DATE/TIME START: 2003-03-24T00:00:00 * DATE/TIME END: 2003-04-26T16:45:00 2005-11-30 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.772051 https://doi.org/10.1594/PANGAEA.772051 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.772051 https://doi.org/10.1594/PANGAEA.772051 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Zachos, James C; Röhl, Ursula; Schellenberg, Stephen A; Sluijs, Appy; Hodell, David A; Kelly, Daniel Clay; Thomas, Ellen; Nicolo, Micah J; Raffi, Isabella; Lourens, Lucas Joost; McCarren, H; Kroon, Dick (2005): Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum. Science, 308(5728), 1611-1615, https://doi.org/10.1126/science.1109004 208-1262 208-1262A 208-1263 208-1263C 208-1265 208-1265A 208-1266 208-1266C 208-1267A 208-1267B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean Dataset 2005 ftpangaea https://doi.org/10.1594/PANGAEA.772051 https://doi.org/10.1126/science.1109004 2023-01-20T07:32:20Z The Paleocene-Eocene thermal maximum (PETM) has been attributed to the rapid release of ~2000 * 10**9 metric tons of carbon in the form of methane. In theory, oxidation and ocean absorption of this carbon should have lowerd deep-sea pH, thereby triggering a rapid (<10,000-year) shoaling of the calcite compensation depth (CCD), followed by gradual recovery. Here we present geochemical data from five new South Atlantic deep-sea sections that constrain the timing and extent of massive sea-floor carbonate dissolution coincident with the PETM. The sections, from between 2.7 and 4.8 kilometers water depth, are marked by a prominent clay layer, the character of which indicates that the CCD shoaled rapidly (<10,000 years) by more than 2 kilometers and recovered gradually (>100,000 years). These findings indicate that a large mass of carbon (>>2000 * 10**9 metric tons of carbon) dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback. Dataset South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(1.577000,2.779630,-27.185833,-28.835017) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
208-1262 208-1262A 208-1263 208-1263C 208-1265 208-1265A 208-1266 208-1266C 208-1267A 208-1267B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
spellingShingle |
208-1262 208-1262A 208-1263 208-1263C 208-1265 208-1265A 208-1266 208-1266C 208-1267A 208-1267B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean Zachos, James C Röhl, Ursula Schellenberg, Stephen A Sluijs, Appy Hodell, David A Kelly, Daniel Clay Thomas, Ellen Nicolo, Micah J Raffi, Isabella Lourens, Lucas Joost McCarren, H Kroon, Dick The Paleocene-Eocene boundary in ODP Leg 208 sites |
topic_facet |
208-1262 208-1262A 208-1263 208-1263C 208-1265 208-1265A 208-1266 208-1266C 208-1267A 208-1267B COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
description |
The Paleocene-Eocene thermal maximum (PETM) has been attributed to the rapid release of ~2000 * 10**9 metric tons of carbon in the form of methane. In theory, oxidation and ocean absorption of this carbon should have lowerd deep-sea pH, thereby triggering a rapid (<10,000-year) shoaling of the calcite compensation depth (CCD), followed by gradual recovery. Here we present geochemical data from five new South Atlantic deep-sea sections that constrain the timing and extent of massive sea-floor carbonate dissolution coincident with the PETM. The sections, from between 2.7 and 4.8 kilometers water depth, are marked by a prominent clay layer, the character of which indicates that the CCD shoaled rapidly (<10,000 years) by more than 2 kilometers and recovered gradually (>100,000 years). These findings indicate that a large mass of carbon (>>2000 * 10**9 metric tons of carbon) dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback. |
format |
Dataset |
author |
Zachos, James C Röhl, Ursula Schellenberg, Stephen A Sluijs, Appy Hodell, David A Kelly, Daniel Clay Thomas, Ellen Nicolo, Micah J Raffi, Isabella Lourens, Lucas Joost McCarren, H Kroon, Dick |
author_facet |
Zachos, James C Röhl, Ursula Schellenberg, Stephen A Sluijs, Appy Hodell, David A Kelly, Daniel Clay Thomas, Ellen Nicolo, Micah J Raffi, Isabella Lourens, Lucas Joost McCarren, H Kroon, Dick |
author_sort |
Zachos, James C |
title |
The Paleocene-Eocene boundary in ODP Leg 208 sites |
title_short |
The Paleocene-Eocene boundary in ODP Leg 208 sites |
title_full |
The Paleocene-Eocene boundary in ODP Leg 208 sites |
title_fullStr |
The Paleocene-Eocene boundary in ODP Leg 208 sites |
title_full_unstemmed |
The Paleocene-Eocene boundary in ODP Leg 208 sites |
title_sort |
paleocene-eocene boundary in odp leg 208 sites |
publisher |
PANGAEA |
publishDate |
2005 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.772051 https://doi.org/10.1594/PANGAEA.772051 |
op_coverage |
MEDIAN LATITUDE: -27.964378 * MEDIAN LONGITUDE: 2.140817 * SOUTH-BOUND LATITUDE: -28.835017 * WEST-BOUND LONGITUDE: 1.577000 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.779630 * DATE/TIME START: 2003-03-24T00:00:00 * DATE/TIME END: 2003-04-26T16:45:00 |
long_lat |
ENVELOPE(1.577000,2.779630,-27.185833,-28.835017) |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Supplement to: Zachos, James C; Röhl, Ursula; Schellenberg, Stephen A; Sluijs, Appy; Hodell, David A; Kelly, Daniel Clay; Thomas, Ellen; Nicolo, Micah J; Raffi, Isabella; Lourens, Lucas Joost; McCarren, H; Kroon, Dick (2005): Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum. Science, 308(5728), 1611-1615, https://doi.org/10.1126/science.1109004 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.772051 https://doi.org/10.1594/PANGAEA.772051 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.772051 https://doi.org/10.1126/science.1109004 |
_version_ |
1766200316768813056 |