Haupt- und Spurenelemente in Foraminiferengehäusen: Hinweise auf klimatische und ozeanographische Änderungen im nördlichen Nordatlantik während des Spätquartärs.

Nürnberg, Dirk (1991) Haupt- und Spurenelemente in Foraminiferengehäusen: Hinweise auf klimatische und ozeanographische Änderungen im nördlichen Nordatlantik während des Spätquartärs. Open Access (PhD/ Doctoral thesis), Christian-Albrechts-Universität , Kiel, 117 pp. . GEOMAR-Report, 008 . DOI 10.3289/GEOMAR_REP_8_1991.

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Abstract

Chemical elements in calcitic foraminiferal tests may serve to reconstruct the spatial and temporal
variability as weil as the thermal history of deep and surface water masses. Multi-element analyses of
benthic (Cassidulina spp., C. wuellerstorfi, 0. umbonatus, H. elegans, Uvigerina spp.) and planklonie
foraminiferal tests (N. pachyderma sin.) performed by miereprobe reveal relations between the
geochemical composition of foraminiferal tests and oceanographic and climatic parameters: the
analysis of magnesium in calcitic foraminiferal tests makes the thermal reconstruction of surtace water
masses possible. Cadmium and barium as paleoproductivity indicators in boliom and surface water
masses may reveal oceanographic changes Sediment cores along a transect reaching from the Rockall
Plateau in the northeastern North Atlantic to the Fram Strait and lying under the influence of the North
Atlantic Drift and the Norwegian Current were used to systematically investigate geochemical variations
for several glacial/interglacial changes down to oxygen isotope stage 6 (approximately the last
180,000 years).

Document Type: Thesis (PhD/ Doctoral thesis)
Thesis Advisor: Thiede, Jörn
Keywords: Foraminiferengeochemie, Mg/Ca-Paläothermometrie, Paläotemperaturen, Paläozeanographie
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
DOI etc.: 10.3289/GEOMAR_REP_8_1991
ISSN: 0936-5788
Date Deposited: 12 Jan 2016 11:54
Last Modified: 12 Jan 2016 14:14
URI: http://oceanrep.geomar.de/id/eprint/30961

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