Past temperature and δ18O of surface ocean waters inferred from foraminiferal Mg/Ca ratios

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doi: 10.1038/35013033
Authors:Elderfield, H.; Ganssen, G.
Author Affiliations:Primary:
University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Other:
Free University, Netherlands
Volume Title:Nature (London)
Source:Nature (London), 405(6785), p.442-445. Publisher: Macmillan Journals, London, United Kingdom. ISSN: 0028-0836
Publication Date:2000
Note:In English. 21 refs.; illus.
Summary:In a field-based calibration, it is shown that the variation of Mg/Ca ratios with T is similar for 8 species of foraminifera, accounting for Mg dissolution effects. Past T reconstructed from Mg/Ca ratios follow past T from faunal abundance and alkenone saturation. Reconstructed surface water δ 18O from all foraminiferal species record the same glacial/interglacial change. [R.K.H.]
Sections:Geochemistry
Subsections:Hydrogeochemistry
Subjects:Alkaline earth metals; Alkenones; Assemblages; Biochemistry; Calcium; Cenozoic; Chemical ratios; Climate change; Foraminifera; Geochemistry; Glacial environment; Interglacial environment; Isotope ratios; Isotopes; Ketones; Last glacial maximum; Magnesium; Marine environment; Metals; Mg/Ca; Microfossils; O-18/O-16; Organic compounds; Oxygen; Paleo-oceanography; Paleoclimatology; Planktonic taxa; Pleistocene; Quaternary; Sea water; Stable isotopes; Temperature; Upper Pleistocene; Variations; Atlantic Ocean; North Atlantic; Invertebrata; Protista
Abstract Numbers:00M/4018
Record ID:2000070358
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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