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Citation link: https://nbn-resolving.de/urn:nbn:de:gbv:46-ep000103164
00010316.pdf
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Late Quaternary biogenic opal sedimentation and diatom assemblages in Congo Fan sediments.


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Authors: Uliana, Eleonora 
Abstract: 
Fluctuations in the sedimentation of biogenic opal and diatoms in the Congo Fan area (Lower Congo Basin off west Africa) during the past 1 million years in the Late Quatemary are the central topics of this thesis. Sediments of ODP Site 1077 (5°1O'S, 10° 26'E; 2,382 m water depth) were analyzed. The time interval studied, the last million year in the Late Quatemary, is a very interesting time in the global climate system when a change from a predominantly 41 kyr cyclicity in the early Pleistocene to the late Quaternary 100 kyr ice age cycles took place. This shift occurred around 800 to 900 ka, following the so-called Mid-Pleistocene Transition. The origin ofthe 100 kyr age cycle dominating the late Pleistocene is an issue not yet fully understood (Imbrie et al., 1993; In: Paleoceanography, 8: 699-735) because the direct influence of eccentricity on insolation is by far too small to produce the corresponding climate style.
Issue Date: 2002
Journal/Edited collection: Berichte, Fachbereich Geowissenschaften, Universität Bremen 
Volume: 188
Pages: 94 pp
Type: Bericht, Report
ISSN: 0931-0800
Secondary publication: no
URN: urn:nbn:de:gbv:46-ep000103164
Institution: Universität Bremen 
Faculty: Fachbereich 05: Geowissenschaften (FB 05) 
Institute: Marum – Zentrum für Marine Umweltwissenschaften 
Appears in Collections:Forschungsdokumente

  

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