The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect
Five sections drilled in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge (SE Atlantic) during Ocean Drilling Program (ODP) Leg 208 resulted in the first complete early Paleogene deep-sea record. Here we present high-resolution stratigraphic records spanning a ~4.3 millio...
Main Authors: | , , , , , , |
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Format: | Other/Unknown Material |
Language: | English |
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PANGAEA
2007
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Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.603177 https://doi.org/10.1594/PANGAEA.603177 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.603177 |
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record_format |
openpolar |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
208-1262 208-1263 208-1263A 208-1263B 208-1263C 208-1263D 208-1265 208-1267 208-1267A 208-1267B Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
spellingShingle |
208-1262 208-1263 208-1263A 208-1263B 208-1263C 208-1263D 208-1265 208-1267 208-1267A 208-1267B Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean Westerhold, Thomas Röhl, Ursula Laskar, Jacques Bowles, Julie Raffi, Isabella Lourens, Lucas Joost Zachos, James C The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect |
topic_facet |
208-1262 208-1263 208-1263A 208-1263B 208-1263C 208-1263D 208-1265 208-1267 208-1267A 208-1267B Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg208 MARUM Ocean Drilling Program ODP South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
description |
Five sections drilled in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge (SE Atlantic) during Ocean Drilling Program (ODP) Leg 208 resulted in the first complete early Paleogene deep-sea record. Here we present high-resolution stratigraphic records spanning a ~4.3 million yearlong interval of the late Paleocene to early Eocene. This interval includes the Paleocene-Eocene thermal maximum (PETM) as well as the Eocene thermal maximum (ETM) 2 event. A detailed chronology was developed with nondestructive X-ray fluorescence (XRF) core scanning records and shipboard color data. These records were used to refine the shipboard-derived spliced composite depth for each site and with a record from ODP Site 1051 were then used to establish a continuous time series over this interval. Extensive spectral analysis reveals that the early Paleogene sedimentary cyclicity is dominated by precession modulated by the short (100 kyr) and long (405 kyr) eccentricity cycles. Counting of precession-related cycles at multiple sites results in revised estimates for the duration of magnetochrons C24r and C25n. Direct comparison between the amplitude modulation of the precession component derived from XRF data and recent models of Earth's orbital eccentricity suggests that the onset of the PETM and ETM2 are related to a 100-kyr eccentricity maximum. Both events are approximately a quarter of a period offset from a maximum in the 405-kyr eccentricity cycle, with the major difference that the PETM is lagging and ETM2 is leading a 405-kyr eccentricity maximum. Absolute age estimates for the PETM, ETM2, and the magnetochron boundaries that are consistent with recalibrated radiometric ages and recent models of Earth's orbital eccentricity cannot be precisely determined at present because of too large uncertainties in these methods. Nevertheless, we provide two possible tuning options, which demonstrate the potential for the development of a cyclostratigraphic framework based on the stable 405-kyr eccentricity cycle ... |
format |
Other/Unknown Material |
author |
Westerhold, Thomas Röhl, Ursula Laskar, Jacques Bowles, Julie Raffi, Isabella Lourens, Lucas Joost Zachos, James C |
author_facet |
Westerhold, Thomas Röhl, Ursula Laskar, Jacques Bowles, Julie Raffi, Isabella Lourens, Lucas Joost Zachos, James C |
author_sort |
Westerhold, Thomas |
title |
The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect |
title_short |
The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect |
title_full |
The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect |
title_fullStr |
The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect |
title_full_unstemmed |
The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect |
title_sort |
early eocene global warming events: implications from odp leg 208 walvis ridge depth transect |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.603177 https://doi.org/10.1594/PANGAEA.603177 |
op_coverage |
MEDIAN LATITUDE: -28.285305 * MEDIAN LONGITUDE: 2.265264 * SOUTH-BOUND LATITUDE: -28.835017 * WEST-BOUND LONGITUDE: 1.577000 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.779700 * DATE/TIME START: 2003-03-24T00:00:00 * DATE/TIME END: 2003-04-26T16:45:00 |
long_lat |
ENVELOPE(1.577000,2.779700,-27.185833,-28.835017) |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Supplement to: Westerhold, Thomas; Röhl, Ursula; Laskar, Jacques; Raffi, Isabella; Bowles, Julie; Lourens, Lucas Joost; Zachos, James C (2007): On the duration of magnetochrons C24r and C25n and the timing of early Eocene global warming events: Implications from the Ocean Drilling Program Leg 208 Walvis Ridge depth transect. Paleoceanography, 22, PA2201, https://doi.org/10.1029/2006PA001322 |
op_relation |
Bowles, Julie (2006): Data report: Revised magnetostratigraphy and magnetic mineralogy of sediments from Walvis Ridge, Leg 208. In: Kroon, D., Zachos, J.C., and Richter, C. (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 208: College Station, TX (Ocean Drilling Program), 208, 1-24, https://doi.org/10.2973/odp.proc.sr.208.206.2006 https://doi.pangaea.de/10.1594/PANGAEA.603177 https://doi.org/10.1594/PANGAEA.603177 |
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.60317710.1029/2006PA00132210.2973/odp.proc.sr.208.206.2006 |
_version_ |
1810480211974684672 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.603177 2024-09-15T18:36:32+00:00 The early Eocene global warming events: Implications from ODP Leg 208 Walvis Ridge depth transect Westerhold, Thomas Röhl, Ursula Laskar, Jacques Bowles, Julie Raffi, Isabella Lourens, Lucas Joost Zachos, James C MEDIAN LATITUDE: -28.285305 * MEDIAN LONGITUDE: 2.265264 * SOUTH-BOUND LATITUDE: -28.835017 * WEST-BOUND LONGITUDE: 1.577000 * NORTH-BOUND LATITUDE: -27.185833 * EAST-BOUND LONGITUDE: 2.779700 * DATE/TIME START: 2003-03-24T00:00:00 * DATE/TIME END: 2003-04-26T16:45:00 2007 application/zip, 13 datasets https://doi.pangaea.de/10.1594/PANGAEA.603177 https://doi.org/10.1594/PANGAEA.603177 en eng PANGAEA Bowles, Julie (2006): Data report: Revised magnetostratigraphy and magnetic mineralogy of sediments from Walvis Ridge, Leg 208. In: Kroon, D., Zachos, J.C., and Richter, C. (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 208: College Station, TX (Ocean Drilling Program), 208, 1-24, https://doi.org/10.2973/odp.proc.sr.208.206.2006 https://doi.pangaea.de/10.1594/PANGAEA.603177 https://doi.org/10.1594/PANGAEA.603177 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Westerhold, Thomas; Röhl, Ursula; Laskar, Jacques; Raffi, Isabella; Bowles, Julie; Lourens, Lucas Joost; Zachos, James C (2007): On the duration of magnetochrons C24r and C25n and the timing of early Eocene global warming events: Implications from the Ocean Drilling Program Leg 208 Walvis Ridge depth transect. Paleoceanography, 22, PA2201, https://doi.org/10.1029/2006PA001322 208-1262 208-1263 208-1263A 208-1263B 208-1263C 208-1263D 208-1265 208-1267 208-1267A 208-1267B Center for Marine Environmental Sciences COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution 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.60317710.1029/2006PA00132210.2973/odp.proc.sr.208.206.2006 2024-07-24T02:31:42Z Five sections drilled in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge (SE Atlantic) during Ocean Drilling Program (ODP) Leg 208 resulted in the first complete early Paleogene deep-sea record. Here we present high-resolution stratigraphic records spanning a ~4.3 million yearlong interval of the late Paleocene to early Eocene. This interval includes the Paleocene-Eocene thermal maximum (PETM) as well as the Eocene thermal maximum (ETM) 2 event. A detailed chronology was developed with nondestructive X-ray fluorescence (XRF) core scanning records and shipboard color data. These records were used to refine the shipboard-derived spliced composite depth for each site and with a record from ODP Site 1051 were then used to establish a continuous time series over this interval. Extensive spectral analysis reveals that the early Paleogene sedimentary cyclicity is dominated by precession modulated by the short (100 kyr) and long (405 kyr) eccentricity cycles. Counting of precession-related cycles at multiple sites results in revised estimates for the duration of magnetochrons C24r and C25n. Direct comparison between the amplitude modulation of the precession component derived from XRF data and recent models of Earth's orbital eccentricity suggests that the onset of the PETM and ETM2 are related to a 100-kyr eccentricity maximum. Both events are approximately a quarter of a period offset from a maximum in the 405-kyr eccentricity cycle, with the major difference that the PETM is lagging and ETM2 is leading a 405-kyr eccentricity maximum. Absolute age estimates for the PETM, ETM2, and the magnetochron boundaries that are consistent with recalibrated radiometric ages and recent models of Earth's orbital eccentricity cannot be precisely determined at present because of too large uncertainties in these methods. Nevertheless, we provide two possible tuning options, which demonstrate the potential for the development of a cyclostratigraphic framework based on the stable 405-kyr eccentricity cycle ... Other/Unknown Material South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(1.577000,2.779700,-27.185833,-28.835017) |