Are seawater Sr/Ca variations preserved in Quaternary Foraminifera?

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doi: 10.1016/S0016-7037(99)00129-5
Author(s): Stoll, Heather M.; Schrad, Daniel P.; Clemens, Steven C.
Author Affiliation(s): Primary:
Princeton University, Department of Geosciences, Princeton, NJ, United States
Harvard University, United States
Brown University, United States
Volume Title: Geochimica et Cosmochimica Acta
Source: Geochimica et Cosmochimica Acta, 63(21), p.3535-3547. Publisher: Pergamon, Oxford, International. ISSN: 0016-7037 CODEN: GCACAK
Note: In English. 56 refs.; illus., incl. 2 tables
Summary: Analyses are presented of foraminifera for core samples from the equatorial and S Indian Ocean, the equatorial Pacific and North Atlantic for Sr and Ca ratios. Time series for the different sites show Sr/Ca ratio variations ranging from 2-12% and are largely independent of preparation procedures. Systematic variations of 3-5% are characterized by high Sr/Ca ratios during glacial maxima, followed by a steep decrease during deglaciation and gradual increases during interstadial periods closely following the δ 18O curve. It is considered unlikely that the entire amplitude of reproducible foraminiferal Sr/Ca variations represents changes in sea-water Sr/Ca ratios.
Year of Publication: 1999
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 24 Surficial Geology, Quaternary Geology; Alkaline earth metals; Atlantic Ocean; Biochemistry; Calcium; Carbonate ion; Cenozoic; Chemical ratios; Cycles; DSDP Site 502; DSDP Site 572; Deep Sea Drilling Project; Equatorial Pacific; Experimental studies; Foraminifera; Geochemistry; Glacial environment; Glaciomarine environment; High-resolution methods; Hydrochemistry; IPOD; Indian Ocean; Interglacial environment; Invertebrata; Isotope ratios; Isotopes; Leg 121; Leg 68; Leg 85; Marine environment; Metals; Models; North Atlantic; O-18/O-16; ODP Site 758; Ocean Drilling Program; Oxygen; Pacific Ocean; Paleo-oceanography; Planktonic taxa; Postglacial environment; Protista; Quaternary; Sea water; Sea-level changes; Sr-87/Sr-86; Stable isotopes; Strontium; Tests; Upper Quaternary
Coordinates: N414300 N414300 W0325100 W0325100
N000600 N000600 W1392400 W1392400
S421100 S421100 E0945300 E0945300
N052302 N052303 E0902141 E0902140
N012606 N012606 W1135030 W1135030
N112925 N112925 W0792247 W0792247
Record ID: 2000007161
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom