Submitted on: 14 June 2007.
Revised on: 22 July 2007.
Accepted on: 08 August 2007.
Paleoceanography and Paleoclimatology
Submitted on: 20 April 2014.
Revised on: 19 May 2014.
Accepted on: 13 June 2014.
Paleoceanography and Paleoclimatology
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