Comment on "Deep-Sea Temperature and Ice Volume Changes Across the Pliocene-Pleistocene Climate Transitions"

Sosdian and Rosenthal (Reports, 17 July 2009, p. 306) used magnesium/calcium ratios in benthic foraminifera from the North Atlantic to reconstruct past bottom-water temperatures. They suggested that both ice volume change and ice-sheet dynamics played important roles during the late Pliocene and mid...

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Bibliographic Details
Published in:Science
Main Authors: Yu, Jimin, Broeker, Wally S.
Format: Article in Journal/Newspaper
Language:unknown
Published: American Association for the Advancement of Science
Subjects:
Keywords: calcium
ice
magnesium
benthos
climate change
dynamics
North Atlantic deep water
note
Pleistocene
Pliocene
priority journal
reliability
sea surface temperature
Foraminifera
Rosenthal
Ice Sheet
North Atlantic Deep Water
North Atlantic
Online Access:http://hdl.handle.net/1885/53859
https://doi.org/10.1126/science.1186544
https://openresearch-repository.anu.edu.au/bitstream/1885/53859/5/Yu_J_2010_Comment_on_Deep-sea.pdf.jpg
https://openresearch-repository.anu.edu.au/bitstream/1885/53859/7/01_Yu_Comment_on_%22Deep-Sea_2010.pdf.jpg
Description
Summary:Sosdian and Rosenthal (Reports, 17 July 2009, p. 306) used magnesium/calcium ratios in benthic foraminifera from the North Atlantic to reconstruct past bottom-water temperatures. They suggested that both ice volume change and ice-sheet dynamics played important roles during the late Pliocene and mid-Pleistocene climate transitions. We present evidence that their record of deep ocean temperature is not reliable, thus raising doubts about their conclusions.

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