Stable isotope record of Mediterraneas Sea sediments
Long eccentricity (400-kyr) cycles in carbon isotope records from the Pacific and Atlantic oceans and the Mediterranean sea of the past 5.0 Ma are compared. All records show maximum d13C values (d13Cmax) at eccentricity minima during the Pliocene, but this relationship obscured in the Pleistocene af...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.790008 2024-09-15T17:42:43+00:00 Stable isotope record of Mediterraneas Sea sediments Wang, Pinxian Tian, Jun Lourens, Lucas Joost MEDIAN LATITUDE: 35.312394 * MEDIAN LONGITUDE: 25.394247 * SOUTH-BOUND LATITUDE: 33.020000 * WEST-BOUND LONGITUDE: 13.450000 * NORTH-BOUND LATITUDE: 39.083300 * EAST-BOUND LONGITUDE: 32.725433 * DATE/TIME START: 1982-01-01T00:00:00 * DATE/TIME END: 1995-04-03T00:00:00 2010 application/zip, 10 datasets https://doi.pangaea.de/10.1594/PANGAEA.790008 https://doi.org/10.1594/PANGAEA.790008 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.790008 https://doi.org/10.1594/PANGAEA.790008 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Wang, Pinxian; Tian, Jun; Lourens, Lucas Joost (2010): Obscuring of long eccentricity cyclicity in Pleistocene oceanic carbon isotope records. Earth and Planetary Science Letters, 290(3-4), 319-330, https://doi.org/10.1016/j.epsl.2009.12.028 Ocean Drilling Program ODP dataset publication series 2010 ftpangaea https://doi.org/10.1594/PANGAEA.79000810.1016/j.epsl.2009.12.028 2024-07-24T02:31:21Z Long eccentricity (400-kyr) cycles in carbon isotope records from the Pacific and Atlantic oceans and the Mediterranean sea of the past 5.0 Ma are compared. All records show maximum d13C values (d13Cmax) at eccentricity minima during the Pliocene, but this relationship obscured in the Pleistocene after ~1.6 Ma in particular for the open ocean deep-water d13C records. Since a clear anti-phase relationship was set up between oceanic d18O and d13C in the 100-kyr band from this time, we attribute the obscured 400-kyr signal to a major change in the oceanic carbon reservoir probably associated with restructure of the Southern Ocean. A similar change occurred in the Miocene at 13.9 Ma when the 400-kyr cyclicity in d13C records flattened out together with a drastic cooling and Antarctic ice-sheet expansion. A remarkable exception is the Mediterranean surface water d13C record, which remained paced by the long-term eccentricity cycle throughout the Pliocene and Pleistocene, suggesting a low-latitude climatic origin of the 400-kyr signal that is independent of glacial-interglacial forcing. Since the Earth is currently passing through an eccentricity minimum, it is crucial to understand the nature of the d13Cmax events. Other/Unknown Material Antarc* Antarctic Ice Sheet Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(13.450000,32.725433,39.083300,33.020000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Ocean Drilling Program ODP |
spellingShingle |
Ocean Drilling Program ODP Wang, Pinxian Tian, Jun Lourens, Lucas Joost Stable isotope record of Mediterraneas Sea sediments |
topic_facet |
Ocean Drilling Program ODP |
description |
Long eccentricity (400-kyr) cycles in carbon isotope records from the Pacific and Atlantic oceans and the Mediterranean sea of the past 5.0 Ma are compared. All records show maximum d13C values (d13Cmax) at eccentricity minima during the Pliocene, but this relationship obscured in the Pleistocene after ~1.6 Ma in particular for the open ocean deep-water d13C records. Since a clear anti-phase relationship was set up between oceanic d18O and d13C in the 100-kyr band from this time, we attribute the obscured 400-kyr signal to a major change in the oceanic carbon reservoir probably associated with restructure of the Southern Ocean. A similar change occurred in the Miocene at 13.9 Ma when the 400-kyr cyclicity in d13C records flattened out together with a drastic cooling and Antarctic ice-sheet expansion. A remarkable exception is the Mediterranean surface water d13C record, which remained paced by the long-term eccentricity cycle throughout the Pliocene and Pleistocene, suggesting a low-latitude climatic origin of the 400-kyr signal that is independent of glacial-interglacial forcing. Since the Earth is currently passing through an eccentricity minimum, it is crucial to understand the nature of the d13Cmax events. |
format |
Other/Unknown Material |
author |
Wang, Pinxian Tian, Jun Lourens, Lucas Joost |
author_facet |
Wang, Pinxian Tian, Jun Lourens, Lucas Joost |
author_sort |
Wang, Pinxian |
title |
Stable isotope record of Mediterraneas Sea sediments |
title_short |
Stable isotope record of Mediterraneas Sea sediments |
title_full |
Stable isotope record of Mediterraneas Sea sediments |
title_fullStr |
Stable isotope record of Mediterraneas Sea sediments |
title_full_unstemmed |
Stable isotope record of Mediterraneas Sea sediments |
title_sort |
stable isotope record of mediterraneas sea sediments |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.790008 https://doi.org/10.1594/PANGAEA.790008 |
op_coverage |
MEDIAN LATITUDE: 35.312394 * MEDIAN LONGITUDE: 25.394247 * SOUTH-BOUND LATITUDE: 33.020000 * WEST-BOUND LONGITUDE: 13.450000 * NORTH-BOUND LATITUDE: 39.083300 * EAST-BOUND LONGITUDE: 32.725433 * DATE/TIME START: 1982-01-01T00:00:00 * DATE/TIME END: 1995-04-03T00:00:00 |
long_lat |
ENVELOPE(13.450000,32.725433,39.083300,33.020000) |
genre |
Antarc* Antarctic Ice Sheet Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Sheet Southern Ocean |
op_source |
Supplement to: Wang, Pinxian; Tian, Jun; Lourens, Lucas Joost (2010): Obscuring of long eccentricity cyclicity in Pleistocene oceanic carbon isotope records. Earth and Planetary Science Letters, 290(3-4), 319-330, https://doi.org/10.1016/j.epsl.2009.12.028 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.790008 https://doi.org/10.1594/PANGAEA.790008 |
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.79000810.1016/j.epsl.2009.12.028 |
_version_ |
1810489423785099264 |