Glacial-interglacial bioproductivity of the Mexican Margin ...
Sedimentary accumulation of biogenic components (organic carbon, opal, and biogenic barium) on the northwestern Mexican margin declined during every glacial interval of the past 140 kyr, indicating decreases in upwelling-induced productivity during cold periods. The glacial-interglacial contrasts in...
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ftdatacite:10.1594/pangaea.855307 2024-09-15T18:12:25+00:00 Glacial-interglacial bioproductivity of the Mexican Margin ... Ganeshram, Raja S Pedersen, Thomas F 1998 application/zip https://dx.doi.org/10.1594/pangaea.855307 https://doi.pangaea.de/10.1594/PANGAEA.855307 en eng PANGAEA https://dx.doi.org/10.1029/98pa02508 https://dx.doi.org/10.25921/gxhd-r642 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 article Collection Supplementary Publication Series of Datasets 1998 ftdatacite https://doi.org/10.1594/pangaea.85530710.1029/98pa0250810.25921/gxhd-r642 2024-08-01T10:57:14Z Sedimentary accumulation of biogenic components (organic carbon, opal, and biogenic barium) on the northwestern Mexican margin declined during every glacial interval of the past 140 kyr, indicating decreases in upwelling-induced productivity during cold periods. The glacial-interglacial contrasts in upwelling on this margin are attributed to reversals in land-ocean thermal contrast, the waxing and waning of the Laurentide Ice Sheet, and consequent responses of the western hemisphere wind fields. This scenario is consistent with three independent lines of evidence: terrestrial paleoclimatic data, general circulation model results, and our marine records. This pattern of glacial-interglacial variability in upwelling off NW Mexico is opposite to that observed in other low-latitude and midlatitude upwelling areas, such as the eastern equatorial Pacific. These results add to a growing pool of observations that the response of oceanic upwelling to glacial climatic forcing has been regionally variable. ... : Supplement to: Ganeshram, Raja S; Pedersen, Thomas F (1998): Glacial-interglacial variability in upwelling and bioproductivity off NW Mexico: Implications for Quaternary paleoclimate. Paleoceanography, 13(6), 634-645 ... Article in Journal/Newspaper Ice Sheet DataCite |
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Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
description |
Sedimentary accumulation of biogenic components (organic carbon, opal, and biogenic barium) on the northwestern Mexican margin declined during every glacial interval of the past 140 kyr, indicating decreases in upwelling-induced productivity during cold periods. The glacial-interglacial contrasts in upwelling on this margin are attributed to reversals in land-ocean thermal contrast, the waxing and waning of the Laurentide Ice Sheet, and consequent responses of the western hemisphere wind fields. This scenario is consistent with three independent lines of evidence: terrestrial paleoclimatic data, general circulation model results, and our marine records. This pattern of glacial-interglacial variability in upwelling off NW Mexico is opposite to that observed in other low-latitude and midlatitude upwelling areas, such as the eastern equatorial Pacific. These results add to a growing pool of observations that the response of oceanic upwelling to glacial climatic forcing has been regionally variable. ... : Supplement to: Ganeshram, Raja S; Pedersen, Thomas F (1998): Glacial-interglacial variability in upwelling and bioproductivity off NW Mexico: Implications for Quaternary paleoclimate. Paleoceanography, 13(6), 634-645 ... |
format |
Article in Journal/Newspaper |
author |
Ganeshram, Raja S Pedersen, Thomas F |
spellingShingle |
Ganeshram, Raja S Pedersen, Thomas F Glacial-interglacial bioproductivity of the Mexican Margin ... |
author_facet |
Ganeshram, Raja S Pedersen, Thomas F |
author_sort |
Ganeshram, Raja S |
title |
Glacial-interglacial bioproductivity of the Mexican Margin ... |
title_short |
Glacial-interglacial bioproductivity of the Mexican Margin ... |
title_full |
Glacial-interglacial bioproductivity of the Mexican Margin ... |
title_fullStr |
Glacial-interglacial bioproductivity of the Mexican Margin ... |
title_full_unstemmed |
Glacial-interglacial bioproductivity of the Mexican Margin ... |
title_sort |
glacial-interglacial bioproductivity of the mexican margin ... |
publisher |
PANGAEA |
publishDate |
1998 |
url |
https://dx.doi.org/10.1594/pangaea.855307 https://doi.pangaea.de/10.1594/PANGAEA.855307 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
https://dx.doi.org/10.1029/98pa02508 https://dx.doi.org/10.25921/gxhd-r642 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.85530710.1029/98pa0250810.25921/gxhd-r642 |
_version_ |
1810449994224762880 |