Calcium isotope (δ44/40Ca) variations of Neogene planktonic foraminifera

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Calcium isotope (44/40Ca) variations of Neogene planktonic foraminifera

[1] Measurements of the calcium isotopic composition (dCa) of planktonic foraminifera from the western equatorial Pacific and the Indian sector of the Southern Ocean show variations of about 0.6% over the past 24 Myr. The stacked dCa record of Globigerinoides trilobus and Globigerina bulloides indicates a minimum in dCasw (seawater calcium) at 15 to 16 Ma and a subsequent general increase towar...

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Calcium isotope (Î ́44/40Ca) variations of Neogene planktonic foraminifera

[1] Measurements of the calcium isotopic composition (dCa) of planktonic foraminifera from the western equatorial Pacific and the Indian sector of the Southern Ocean show variations of about 0.6% over the past 24 Myr. The stacked dCa record of Globigerinoides trilobus and Globigerina bulloides indicates a minimum in dCasw (seawater calcium) at 15 to 16 Ma and a subsequent general increase towar...

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ژورنال

عنوان ژورنال: Paleoceanography

سال: 2005

ISSN: 0883-8305

DOI: 10.1029/2004pa001048