Sedimentology of core PS2564-3 and GeoB2110-4
In the South Atlantic and adjoining Southern Ocean the kaolinite/chlorite-ratio in Late Quaternary sediments are an alternative deep water proxy to benthic foraminiferal proxies and carbonate preservation indices that is even suitable in regions with poor carbonate preservation. This paper shows the...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728656 2024-09-15T17:42:16+00:00 Sedimentology of core PS2564-3 and GeoB2110-4 Diekmann, Bernhard Kuhn, Gerhard Mackensen, Andreas Petschick, Rainer Fütterer, Dieter K Gersonde, Rainer Rühlemann, Carsten Niebler, Hans-Stefan MEDIAN LATITUDE: -37.394163 * MEDIAN LONGITUDE: -4.810002 * SOUTH-BOUND LATITUDE: -46.141660 * WEST-BOUND LONGITUDE: -45.518333 * NORTH-BOUND LATITUDE: -28.646667 * EAST-BOUND LONGITUDE: 35.898330 * DATE/TIME START: 1993-03-05T00:00:00 * DATE/TIME END: 1994-04-05T10:38:00 1999 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.728656 https://doi.org/10.1594/PANGAEA.728656 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.728656 https://doi.org/10.1594/PANGAEA.728656 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Diekmann, Bernhard; Kuhn, Gerhard; Mackensen, Andreas; Petschick, Rainer; Fütterer, Dieter K; Gersonde, Rainer; Rühlemann, Carsten; Niebler, Hans-Stefan (1999): Kaolinite and Chlorite as Tracers of Modern and Late Quaternary Deep Water Circulation in the South Atlantic and the Adjoining Southern Ocean. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 285-313 ANT-XI/4 Argentine Basin AWI_Paleo GeoB2110-4 Gravity corer (Kiel type) KL M23/2 Meteor (1986) Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS2564-3 PS30 PS30/048 SFB261 SL South Atlantic in Late Quaternary: Reconstruction of Budget and Currents South Atlantic Ocean dataset publication series 1999 ftpangaea https://doi.org/10.1594/PANGAEA.728656 2024-08-21T00:02:25Z In the South Atlantic and adjoining Southern Ocean the kaolinite/chlorite-ratio in Late Quaternary sediments are an alternative deep water proxy to benthic foraminiferal proxies and carbonate preservation indices that is even suitable in regions with poor carbonate preservation. This paper shows the relationship between modern abyssal circulation and the kaolinite/chloriteratio and presents reconstructions of deep and bottom water advection based on the kaolinite/ chlorite proxy. We also discuss the limitations and future perspectives of the kaolinite/chlorite proxy. Latitudinal and water depth-related patterns of the kaolinite/chlorite-ratio in surface sediments correspond to the modern deep and bottom water mass distribution. Kaolinite originates from lowlatitudes and traces North Atlantic Deep Water (northern-source deep water) advection to the south. Chlorite from the southern high-latitudes is exported via northward advecting Antarctic Bottom Water and Circumpolar Deep Water (southern-source deep and bottom water). Deep-sea sedimentation in regions underlying the Antarctic Circumpolar Current was current-dominated throughout the Late Quaternary. Temporal variations of the kaolinite/chlorite-ratio in response to glacial-interglacial cycles reflect changing deep water mass configurations, suggesting a shallowing and northward retreat of northern-source deep water and accordingly wider expansion of southernsource deep and bottom water masses during glacial times relative to interglacial times. Submarine topography influenced the spatial and temporal patterns of deep water mass distribution. Other/Unknown Material Antarc* Antarctic North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-45.518333,35.898330,-28.646667,-46.141660) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XI/4 Argentine Basin AWI_Paleo GeoB2110-4 Gravity corer (Kiel type) KL M23/2 Meteor (1986) Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS2564-3 PS30 PS30/048 SFB261 SL South Atlantic in Late Quaternary: Reconstruction of Budget and Currents South Atlantic Ocean |
spellingShingle |
ANT-XI/4 Argentine Basin AWI_Paleo GeoB2110-4 Gravity corer (Kiel type) KL M23/2 Meteor (1986) Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS2564-3 PS30 PS30/048 SFB261 SL South Atlantic in Late Quaternary: Reconstruction of Budget and Currents South Atlantic Ocean Diekmann, Bernhard Kuhn, Gerhard Mackensen, Andreas Petschick, Rainer Fütterer, Dieter K Gersonde, Rainer Rühlemann, Carsten Niebler, Hans-Stefan Sedimentology of core PS2564-3 and GeoB2110-4 |
topic_facet |
ANT-XI/4 Argentine Basin AWI_Paleo GeoB2110-4 Gravity corer (Kiel type) KL M23/2 Meteor (1986) Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS2564-3 PS30 PS30/048 SFB261 SL South Atlantic in Late Quaternary: Reconstruction of Budget and Currents South Atlantic Ocean |
description |
In the South Atlantic and adjoining Southern Ocean the kaolinite/chlorite-ratio in Late Quaternary sediments are an alternative deep water proxy to benthic foraminiferal proxies and carbonate preservation indices that is even suitable in regions with poor carbonate preservation. This paper shows the relationship between modern abyssal circulation and the kaolinite/chloriteratio and presents reconstructions of deep and bottom water advection based on the kaolinite/ chlorite proxy. We also discuss the limitations and future perspectives of the kaolinite/chlorite proxy. Latitudinal and water depth-related patterns of the kaolinite/chlorite-ratio in surface sediments correspond to the modern deep and bottom water mass distribution. Kaolinite originates from lowlatitudes and traces North Atlantic Deep Water (northern-source deep water) advection to the south. Chlorite from the southern high-latitudes is exported via northward advecting Antarctic Bottom Water and Circumpolar Deep Water (southern-source deep and bottom water). Deep-sea sedimentation in regions underlying the Antarctic Circumpolar Current was current-dominated throughout the Late Quaternary. Temporal variations of the kaolinite/chlorite-ratio in response to glacial-interglacial cycles reflect changing deep water mass configurations, suggesting a shallowing and northward retreat of northern-source deep water and accordingly wider expansion of southernsource deep and bottom water masses during glacial times relative to interglacial times. Submarine topography influenced the spatial and temporal patterns of deep water mass distribution. |
format |
Other/Unknown Material |
author |
Diekmann, Bernhard Kuhn, Gerhard Mackensen, Andreas Petschick, Rainer Fütterer, Dieter K Gersonde, Rainer Rühlemann, Carsten Niebler, Hans-Stefan |
author_facet |
Diekmann, Bernhard Kuhn, Gerhard Mackensen, Andreas Petschick, Rainer Fütterer, Dieter K Gersonde, Rainer Rühlemann, Carsten Niebler, Hans-Stefan |
author_sort |
Diekmann, Bernhard |
title |
Sedimentology of core PS2564-3 and GeoB2110-4 |
title_short |
Sedimentology of core PS2564-3 and GeoB2110-4 |
title_full |
Sedimentology of core PS2564-3 and GeoB2110-4 |
title_fullStr |
Sedimentology of core PS2564-3 and GeoB2110-4 |
title_full_unstemmed |
Sedimentology of core PS2564-3 and GeoB2110-4 |
title_sort |
sedimentology of core ps2564-3 and geob2110-4 |
publisher |
PANGAEA |
publishDate |
1999 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.728656 https://doi.org/10.1594/PANGAEA.728656 |
op_coverage |
MEDIAN LATITUDE: -37.394163 * MEDIAN LONGITUDE: -4.810002 * SOUTH-BOUND LATITUDE: -46.141660 * WEST-BOUND LONGITUDE: -45.518333 * NORTH-BOUND LATITUDE: -28.646667 * EAST-BOUND LONGITUDE: 35.898330 * DATE/TIME START: 1993-03-05T00:00:00 * DATE/TIME END: 1994-04-05T10:38:00 |
long_lat |
ENVELOPE(-45.518333,35.898330,-28.646667,-46.141660) |
genre |
Antarc* Antarctic North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean |
genre_facet |
Antarc* Antarctic North Atlantic Deep Water North Atlantic South Atlantic Ocean Southern Ocean |
op_source |
Supplement to: Diekmann, Bernhard; Kuhn, Gerhard; Mackensen, Andreas; Petschick, Rainer; Fütterer, Dieter K; Gersonde, Rainer; Rühlemann, Carsten; Niebler, Hans-Stefan (1999): Kaolinite and Chlorite as Tracers of Modern and Late Quaternary Deep Water Circulation in the South Atlantic and the Adjoining Southern Ocean. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 285-313 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.728656 https://doi.org/10.1594/PANGAEA.728656 |
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.728656 |
_version_ |
1810488786030690304 |