Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16
Site 958 was drilled to monitor the late Neogene history of both continental aridity in northwestern Africa and the Canary Current distant from nearshore upwelling. Based on magnetostratigraphy, biostratigraphic datums, variations in carbonate, coarse fraction components, and the species composition...
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ftdatacite:10.1594/pangaea.737662 2023-05-15T17:37:04+02:00 Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 Pflaumann, Uwe Sarnthein, Michael Ficken, Katherine Grothmann, Alexandra Winkler, Amelie 1998 application/zip https://dx.doi.org/10.1594/pangaea.737662 https://doi.pangaea.de/10.1594/PANGAEA.737662 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.159t.061.1998 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core Drilling/drill rig Leg159T Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1998 ftdatacite https://doi.org/10.1594/pangaea.737662 https://doi.org/10.2973/odp.proc.sr.159t.061.1998 2022-02-08T16:24:46Z Site 958 was drilled to monitor the late Neogene history of both continental aridity in northwestern Africa and the Canary Current distant from nearshore upwelling. Based on magnetostratigraphy, biostratigraphic datums, variations in carbonate, coarse fraction components, and the species composition of planktonic foraminifers, as well as using the d18O records of Globigerinoides ruber (white), we established a splice between Holes 958A and 958B and a stratigraphic age scale deciphering Milankovitch cycles. Over the last 630 k.y., sedimentation rates amount to 2.9 cm/k.y., and to 2.05-2.53 cm/k.y. back to the base of the Pleistocene. Extremely low rates of 0.4 cm/k.y. and a reworking of fossils mark the late Pliocene. The first continuous, long, sea-surface temperature (SST) record from the center of the Canary Current, which is based on foraminifer species census data, depicts a general temperature decrease in the late Pliocene, lower SST and high seasonalities of up to 6°C ~2.0-1.6 Ma, a warmer interval from 1.6 Ma to ~0.85 Ma, again lower SST and higher seasonalities until 0.33 or 0.26 Ma, and a final warmer interval, lasting until at least 50 ka, possibly reflecting the attenuated dynamics of the Canary Current. Especially over the last 400 k.y., since Stage 11, glacial stages are hardly reflected by cold SST cycles, except for various abrupt and extremely short cooling events amounting to D6°C, which possibly result from North Atlantic Heinrich events. Similar, but not necessarily synchronous, events of short-term, extremely high values occur in the paleoproductivity and (d13Cbased) paleonutrient records, which indicate a generally low primary production averaging to 180 g C m**-2 yr**-1 at 50-330 ka and about 300 g C m**-2 yr**-1 back to the base of the Pleistocene. Near 1.2-1.6 Ma, the grain-size and magnetic susceptibility records document a significant increase in the discharge of south Saharan/Sahelian dust, possibly linked to increasing aridity. Article in Journal/Newspaper North Atlantic Planktonic foraminifera DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Drilling/drill rig Leg159T Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Composite Core Drilling/drill rig Leg159T Joides Resolution Ocean Drilling Program ODP Pflaumann, Uwe Sarnthein, Michael Ficken, Katherine Grothmann, Alexandra Winkler, Amelie Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 |
topic_facet |
Composite Core Drilling/drill rig Leg159T Joides Resolution Ocean Drilling Program ODP |
description |
Site 958 was drilled to monitor the late Neogene history of both continental aridity in northwestern Africa and the Canary Current distant from nearshore upwelling. Based on magnetostratigraphy, biostratigraphic datums, variations in carbonate, coarse fraction components, and the species composition of planktonic foraminifers, as well as using the d18O records of Globigerinoides ruber (white), we established a splice between Holes 958A and 958B and a stratigraphic age scale deciphering Milankovitch cycles. Over the last 630 k.y., sedimentation rates amount to 2.9 cm/k.y., and to 2.05-2.53 cm/k.y. back to the base of the Pleistocene. Extremely low rates of 0.4 cm/k.y. and a reworking of fossils mark the late Pliocene. The first continuous, long, sea-surface temperature (SST) record from the center of the Canary Current, which is based on foraminifer species census data, depicts a general temperature decrease in the late Pliocene, lower SST and high seasonalities of up to 6°C ~2.0-1.6 Ma, a warmer interval from 1.6 Ma to ~0.85 Ma, again lower SST and higher seasonalities until 0.33 or 0.26 Ma, and a final warmer interval, lasting until at least 50 ka, possibly reflecting the attenuated dynamics of the Canary Current. Especially over the last 400 k.y., since Stage 11, glacial stages are hardly reflected by cold SST cycles, except for various abrupt and extremely short cooling events amounting to D6°C, which possibly result from North Atlantic Heinrich events. Similar, but not necessarily synchronous, events of short-term, extremely high values occur in the paleoproductivity and (d13Cbased) paleonutrient records, which indicate a generally low primary production averaging to 180 g C m**-2 yr**-1 at 50-330 ka and about 300 g C m**-2 yr**-1 back to the base of the Pleistocene. Near 1.2-1.6 Ma, the grain-size and magnetic susceptibility records document a significant increase in the discharge of south Saharan/Sahelian dust, possibly linked to increasing aridity. |
format |
Article in Journal/Newspaper |
author |
Pflaumann, Uwe Sarnthein, Michael Ficken, Katherine Grothmann, Alexandra Winkler, Amelie |
author_facet |
Pflaumann, Uwe Sarnthein, Michael Ficken, Katherine Grothmann, Alexandra Winkler, Amelie |
author_sort |
Pflaumann, Uwe |
title |
Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 |
title_short |
Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 |
title_full |
Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 |
title_fullStr |
Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 |
title_full_unstemmed |
Age determination and planktonic foraminifera og ODP Site 159-958, supplement to: Pflaumann, Uwe; Sarnthein, Michael; Ficken, Katherine; Grothmann, Alexandra; Winkler, Amelie (1998): Variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off N.W. Africa over the last 3 M.Y. at Site 958 off Northwest Africa. In: Firth, JV (ed.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 159T, 3-16 |
title_sort |
age determination and planktonic foraminifera og odp site 159-958, supplement to: pflaumann, uwe; sarnthein, michael; ficken, katherine; grothmann, alexandra; winkler, amelie (1998): variations in eolian and carbonate sedimentation, sea surface temperature, and productivity off n.w. africa over the last 3 m.y. at site 958 off northwest africa. in: firth, jv (ed.), proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 159t, 3-16 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1998 |
url |
https://dx.doi.org/10.1594/pangaea.737662 https://doi.pangaea.de/10.1594/PANGAEA.737662 |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.159t.061.1998 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.737662 https://doi.org/10.2973/odp.proc.sr.159t.061.1998 |
_version_ |
1766136789624422400 |