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Improving temperature estimates derived from Mg/Ca of planktonic foraminifera using X-ray computed tomography-based dissolution index, XDX

Date

Authors

Johnstone, Heather J.H.

Yu, Jimin

Elderfield, H

Schulz, Michael

Publisher

American Geophysical Union

Abstract

Temperatures derived from Mg/Ca ratios of the calcite tests of planktonic foraminifera are distorted when samples are partially dissolved, and methods are required to quantify this source of inaccuracy. Here we compare a dissolution index (XDX), based on

Keywords

Keywords: calcite; calcium; calibration; carbonate; computer simulation; deep water; dissolution; estimation method; index method; magnesium; oxygen isotope; planktonic foraminifera; saturation; sensitivity analysis; temperature profile; threshold; tomography; X-ra

URI

http://hdl.handle.net/1885/65073

Collections

ANU Research Publications

Source

Paleoceanography

Type

Journal article

DOI

10.1029/2009PA001902

Restricted until

2037-12-31

Downloads

File

Description

01_Johnstone_Improving_temperature_2011.pdf (813.05 KB)