Haupt- und Spurenelemente in Foraminiferengehäusen: Hinweise auf klimatische und ozeanographische Änderungen im nördlichen Nordatlantik während des Spätquartärs
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 plankl...
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| Format: | Thesis |
| Language: | German |
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GEOMAR Forschungszentrum für marine Geowissenschaften
1991
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| Online Access: | https://oceanrep.geomar.de/id/eprint/30961/ https://oceanrep.geomar.de/id/eprint/30961/1/GEOMAR-Report_8.pdf https://doi.org/10.3289/GEOMAR_REP_8_1991 |
| Summary: | 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). |
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