Barium intensities and tie points between holes of Leg 208
The Paleocene - Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle from injection of isotopically light carbon into the ocean-atmos...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.667443 2024-09-15T18:36:32+00:00 Barium intensities and tie points between holes of Leg 208 Röhl, Ursula Westerhold, Thomas Bralower, Timothy J Zachos, James C MEDIAN LATITUDE: -39.045227 * MEDIAN LONGITUDE: 1.865212 * SOUTH-BOUND LATITUDE: -65.161000 * WEST-BOUND LONGITUDE: 1.204867 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.779567 * DATE/TIME START: 1987-01-19T00:00:00 * DATE/TIME END: 2003-04-26T00:00:00 2007 application/zip, 17 datasets https://doi.pangaea.de/10.1594/PANGAEA.667443 https://doi.org/10.1594/PANGAEA.667443 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.667443 https://doi.org/10.1594/PANGAEA.667443 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Röhl, Ursula; Westerhold, Thomas; Bralower, Timothy J; Zachos, James C (2007): On the duration of the Paleocene - Eocene Thermal Maximum (PETM). Geochemistry, Geophysics, Geosystems, 8(12), Q12002, https://doi.org/10.1029/2007GC001784 113-690 113-690B 208-1262 208-1263 208-1265 208-1266 208-1267 Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg113 Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean dataset publication series 2007 ftpangaea https://doi.org/10.1594/PANGAEA.66744310.1029/2007GC001784 2024-07-24T02:31:42Z The Paleocene - Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle from injection of isotopically light carbon into the ocean-atmosphere system. One key to quantifying the mass of carbon released, identifying the source(s), and understanding the ultimate fate of this carbon is to develop high-resolution age models. Two independent strategies have been employed, cycle stratigraphy and analysis of extraterrestrial Helium (HeET), both of which were first tested on Ocean Drilling Program (ODP) Site 690. Both methods are in agreement for the onset of the PETM and initial recovery, or the clay layer (“main body”), but seem to differ in the final recovery phase of the event above the clay layer, where the carbonate contents rise and carbon isotope values return toward background values. Here we present a state-of-the-art age model for the PETM derived from a new orbital chronology developed with cycle stratigraphic records from sites drilled during ODP Leg 208 (Walvis Ridge, Southeastern Atlantic) integrated with published records from Site 690 (Weddell Sea, Southern Ocean, ODP Leg 113). During Leg 208, five Paleocene – Eocene (P-E) boundary sections (Sites 1262 to 1267) were recovered in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge yielding the first stratigraphically complete P-E deep-sea sequence with moderate to relatively high sedimentation rates (1 to 3 cm/kyr). A detailed chronology was developed with non-destructive X-ray fluorescence (XRF) core scanning records on the scale of precession cycles, with a total duration of the PETM now estimated to be ~ 170 kyr. The revised cycle stratigraphic record confirms original estimates for the duration of the onset and initial recovery, but suggests a new duration for the final recovery that is intermediate to the previous estimates by cycle stratigraphy and HeET. Other/Unknown Material South Atlantic Ocean Southern Ocean Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(1.204867,2.779567,-27.185833,-65.161000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-690 113-690B 208-1262 208-1263 208-1265 208-1266 208-1267 Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg113 Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
spellingShingle |
113-690 113-690B 208-1262 208-1263 208-1265 208-1266 208-1267 Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg113 Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean Röhl, Ursula Westerhold, Thomas Bralower, Timothy J Zachos, James C Barium intensities and tie points between holes of Leg 208 |
topic_facet |
113-690 113-690B 208-1262 208-1263 208-1265 208-1266 208-1267 Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg113 Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
description |
The Paleocene - Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle from injection of isotopically light carbon into the ocean-atmosphere system. One key to quantifying the mass of carbon released, identifying the source(s), and understanding the ultimate fate of this carbon is to develop high-resolution age models. Two independent strategies have been employed, cycle stratigraphy and analysis of extraterrestrial Helium (HeET), both of which were first tested on Ocean Drilling Program (ODP) Site 690. Both methods are in agreement for the onset of the PETM and initial recovery, or the clay layer (“main body”), but seem to differ in the final recovery phase of the event above the clay layer, where the carbonate contents rise and carbon isotope values return toward background values. Here we present a state-of-the-art age model for the PETM derived from a new orbital chronology developed with cycle stratigraphic records from sites drilled during ODP Leg 208 (Walvis Ridge, Southeastern Atlantic) integrated with published records from Site 690 (Weddell Sea, Southern Ocean, ODP Leg 113). During Leg 208, five Paleocene – Eocene (P-E) boundary sections (Sites 1262 to 1267) were recovered in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge yielding the first stratigraphically complete P-E deep-sea sequence with moderate to relatively high sedimentation rates (1 to 3 cm/kyr). A detailed chronology was developed with non-destructive X-ray fluorescence (XRF) core scanning records on the scale of precession cycles, with a total duration of the PETM now estimated to be ~ 170 kyr. The revised cycle stratigraphic record confirms original estimates for the duration of the onset and initial recovery, but suggests a new duration for the final recovery that is intermediate to the previous estimates by cycle stratigraphy and HeET. |
format |
Other/Unknown Material |
author |
Röhl, Ursula Westerhold, Thomas Bralower, Timothy J Zachos, James C |
author_facet |
Röhl, Ursula Westerhold, Thomas Bralower, Timothy J Zachos, James C |
author_sort |
Röhl, Ursula |
title |
Barium intensities and tie points between holes of Leg 208 |
title_short |
Barium intensities and tie points between holes of Leg 208 |
title_full |
Barium intensities and tie points between holes of Leg 208 |
title_fullStr |
Barium intensities and tie points between holes of Leg 208 |
title_full_unstemmed |
Barium intensities and tie points between holes of Leg 208 |
title_sort |
barium intensities and tie points between holes of leg 208 |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.667443 https://doi.org/10.1594/PANGAEA.667443 |
op_coverage |
MEDIAN LATITUDE: -39.045227 * MEDIAN LONGITUDE: 1.865212 * SOUTH-BOUND LATITUDE: -65.161000 * WEST-BOUND LONGITUDE: 1.204867 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.779567 * DATE/TIME START: 1987-01-19T00:00:00 * DATE/TIME END: 2003-04-26T00:00:00 |
long_lat |
ENVELOPE(1.204867,2.779567,-27.185833,-65.161000) |
genre |
South Atlantic Ocean Southern Ocean Weddell Sea |
genre_facet |
South Atlantic Ocean Southern Ocean Weddell Sea |
op_source |
Supplement to: Röhl, Ursula; Westerhold, Thomas; Bralower, Timothy J; Zachos, James C (2007): On the duration of the Paleocene - Eocene Thermal Maximum (PETM). Geochemistry, Geophysics, Geosystems, 8(12), Q12002, https://doi.org/10.1029/2007GC001784 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.667443 https://doi.org/10.1594/PANGAEA.667443 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.66744310.1029/2007GC001784 |
_version_ |
1810480210203639808 |