Isotopic stages of DSDP Site 94-607 (Table 1)
High resolution palynological analysis of DSDP Cores 607/607A shows for the interval between 2.8 and 2.2 Ma B.P. (which includes the onset of major northern hemisphere glaciations) a 41 ka cyclicity characterised by much higher palynomorph concentrations for the cooler intervals than for the warmer...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.742722 2023-05-15T17:30:51+02:00 Isotopic stages of DSDP Site 94-607 (Table 1) Versteegh, Gerard J M Brinkhuis, Henk Visscher, Henk Zonneveld, Karin A F LATITUDE: 41.001200 * LONGITUDE: -32.957300 * DATE/TIME START: 1983-07-06T00:00:00 * DATE/TIME END: 1983-07-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 97.30 m * MAXIMUM DEPTH, sediment/rock: 118.70 m 1996-07-01 text/tab-separated-values, 50 data points https://doi.pangaea.de/10.1594/PANGAEA.742722 https://doi.org/10.1594/PANGAEA.742722 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.742722 https://doi.org/10.1594/PANGAEA.742722 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Versteegh, Gerard J M; Brinkhuis, Henk; Visscher, Henk; Zonneveld, Karin A F (1996): The relation between productivity and temperature in the Pliocene North Atlantic at the onset of northern hemisphere glaciation: a palynological study. Global and Planetary Change, 11(4), 155165, https://doi.org/10.1016/0921-8181(95)00054-2 94-607_Site Age model Age model calibration COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Glomar Challenger Isotopic event Leg94 North Atlantic/FLANK Dataset 1996 ftpangaea https://doi.org/10.1594/PANGAEA.742722 https://doi.org/10.1016/0921-8181(95)00054-2 2023-01-20T08:51:16Z High resolution palynological analysis of DSDP Cores 607/607A shows for the interval between 2.8 and 2.2 Ma B.P. (which includes the onset of major northern hemisphere glaciations) a 41 ka cyclicity characterised by much higher palynomorph concentrations for the cooler intervals than for the warmer ones. Variation in dilution and concentration of palynomorphs can neither be explained by differential input of terrigenous clastics or carbonate, nor by differences in sedimentation rate, sediment density or selective preservation of palynomorphs. Subdivision of the palynomorph record in terms of autochthonous and allochthonous components, provides a way to detect changes in open ocean productivity and transport through time. It seems that a negative correlation between productivity and temperature in the latest Pleistocene open Atlantic had already been established before the major onset of northern hemisphere glaciations. A conceptual model is proposed to explain the observed lead of the palynological record relative to the isotope and carbonate records is proposed. This early response can result from changes in North Atlantic surface ocean circulation induced by changing atmospheric circulation. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-32.957300,-32.957300,41.001200,41.001200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
94-607_Site Age model Age model calibration COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Glomar Challenger Isotopic event Leg94 North Atlantic/FLANK |
spellingShingle |
94-607_Site Age model Age model calibration COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Glomar Challenger Isotopic event Leg94 North Atlantic/FLANK Versteegh, Gerard J M Brinkhuis, Henk Visscher, Henk Zonneveld, Karin A F Isotopic stages of DSDP Site 94-607 (Table 1) |
topic_facet |
94-607_Site Age model Age model calibration COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Glomar Challenger Isotopic event Leg94 North Atlantic/FLANK |
description |
High resolution palynological analysis of DSDP Cores 607/607A shows for the interval between 2.8 and 2.2 Ma B.P. (which includes the onset of major northern hemisphere glaciations) a 41 ka cyclicity characterised by much higher palynomorph concentrations for the cooler intervals than for the warmer ones. Variation in dilution and concentration of palynomorphs can neither be explained by differential input of terrigenous clastics or carbonate, nor by differences in sedimentation rate, sediment density or selective preservation of palynomorphs. Subdivision of the palynomorph record in terms of autochthonous and allochthonous components, provides a way to detect changes in open ocean productivity and transport through time. It seems that a negative correlation between productivity and temperature in the latest Pleistocene open Atlantic had already been established before the major onset of northern hemisphere glaciations. A conceptual model is proposed to explain the observed lead of the palynological record relative to the isotope and carbonate records is proposed. This early response can result from changes in North Atlantic surface ocean circulation induced by changing atmospheric circulation. |
format |
Dataset |
author |
Versteegh, Gerard J M Brinkhuis, Henk Visscher, Henk Zonneveld, Karin A F |
author_facet |
Versteegh, Gerard J M Brinkhuis, Henk Visscher, Henk Zonneveld, Karin A F |
author_sort |
Versteegh, Gerard J M |
title |
Isotopic stages of DSDP Site 94-607 (Table 1) |
title_short |
Isotopic stages of DSDP Site 94-607 (Table 1) |
title_full |
Isotopic stages of DSDP Site 94-607 (Table 1) |
title_fullStr |
Isotopic stages of DSDP Site 94-607 (Table 1) |
title_full_unstemmed |
Isotopic stages of DSDP Site 94-607 (Table 1) |
title_sort |
isotopic stages of dsdp site 94-607 (table 1) |
publisher |
PANGAEA |
publishDate |
1996 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.742722 https://doi.org/10.1594/PANGAEA.742722 |
op_coverage |
LATITUDE: 41.001200 * LONGITUDE: -32.957300 * DATE/TIME START: 1983-07-06T00:00:00 * DATE/TIME END: 1983-07-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 97.30 m * MAXIMUM DEPTH, sediment/rock: 118.70 m |
long_lat |
ENVELOPE(-32.957300,-32.957300,41.001200,41.001200) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Versteegh, Gerard J M; Brinkhuis, Henk; Visscher, Henk; Zonneveld, Karin A F (1996): The relation between productivity and temperature in the Pliocene North Atlantic at the onset of northern hemisphere glaciation: a palynological study. Global and Planetary Change, 11(4), 155165, https://doi.org/10.1016/0921-8181(95)00054-2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.742722 https://doi.org/10.1594/PANGAEA.742722 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.742722 https://doi.org/10.1016/0921-8181(95)00054-2 |
_version_ |
1766127956564901888 |