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Rapid Uplift of the Altiplano Revealed Through ^(13)C-^(18)O Bonds in Paleosol Carbonates

Ghosh, Prosenjit and Garzione, Carmala N. and Eiler, John M. (2006) Rapid Uplift of the Altiplano Revealed Through ^(13)C-^(18)O Bonds in Paleosol Carbonates. Science, 311 (5760). pp. 511-515. ISSN 0036-8075.

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The elevation of Earth's surface is among the most difficult environmental variables to reconstruct from the geological record. Here we describe an approach to paleoaltimetry based on independent and simultaneous determinations of soil temperatures and the oxygen isotope compositions of soil waters, constrained by measurements of abundances of ^(13)C-^(18)O bonds in soil carbonates. We use this approach to show that the Altiplano plateau in the Bolivian Andes rose at an average rate of 1.03 ± 0.12 millimeters per year between ~10.3 and ~6.7 million years ago. This rate is consistent with the removal of dense lower crust and/or lithospheric mantle as the cause of elevation gain.

Item Type:Article
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Additional Information:© 2005 American Association for the Advancement of Science. Received 25 August 2005; accepted 31 October 2005.
Group:Caltech Tectonics Observatory
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Other Numbering System NameOther Numbering System ID
Caltech Tectonics Observatory56
Issue or Number:5760
Record Number:CaltechAUTHORS:20101117-143752881
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20867
Deposited By: Tony Diaz
Deposited On:23 Nov 2010 21:55
Last Modified:03 Oct 2019 02:16

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