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Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history

Publication ,  Journal Article
Cronin, TM; Dwyer, GS; Baker, PA; Rodriguez-Lazaro, J; Briggs, WMJ
Published in: Late Quaternary palaeoceanography of the North Atlantic margins
January 1, 1996

The magnesium:calcium (Mg:Ca) and strontium:calcium (Sr:Ca) ratios were investigated in shells of the benthic ostracode genus Krithe obtained from 64 core-tops from water depths of 73 to 4411 m in the Arctic Ocean and Nordic seas to determine the potential of ostracode shell chemistry for paleoceanographic study. Shells from the abyssal plain and ridges of the Nansen, Amundsen and Makarov basins and the Norwegian and Greenland seas had a wide scatter of Mg:Ca ratios ranging from 0.007 to 0.012 that may signify post-mortem chemical alteration of the shells from Arctic deep-sea environments below about 1000 m water depth. There is a positive correlation (r2=0.59) between Mg:Ca ratios and bottom-water temperature in Krithe shells from water depths <900 m.

Duke Scholars

Published In

Late Quaternary palaeoceanography of the North Atlantic margins

Publication Date

January 1, 1996

Start / End Page

117 / 134
 

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Cronin, T. M., Dwyer, G. S., Baker, P. A., Rodriguez-Lazaro, J., & Briggs, W. M. J. (1996). Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history. Late Quaternary Palaeoceanography of the North Atlantic Margins, 117–134.
Cronin, T. M., G. S. Dwyer, P. A. Baker, J. Rodriguez-Lazaro, and W. M. J. Briggs. “Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history.” Late Quaternary Palaeoceanography of the North Atlantic Margins, January 1, 1996, 117–34.
Cronin TM, Dwyer GS, Baker PA, Rodriguez-Lazaro J, Briggs WMJ. Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history. Late Quaternary palaeoceanography of the North Atlantic margins. 1996 Jan 1;117–34.
Cronin, T. M., et al. “Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history.” Late Quaternary Palaeoceanography of the North Atlantic Margins, Jan. 1996, pp. 117–34.
Cronin TM, Dwyer GS, Baker PA, Rodriguez-Lazaro J, Briggs WMJ. Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history. Late Quaternary palaeoceanography of the North Atlantic margins. 1996 Jan 1;117–134.

Published In

Late Quaternary palaeoceanography of the North Atlantic margins

Publication Date

January 1, 1996

Start / End Page

117 / 134