Rapid uplift of the Altiplano revealed through 13C- 18O bonds in paleosol carbonates

Prosenjit Ghosh; Carmala N. Garzione; John M. Eiler

doi:10.1126/science.1119365

Rapid uplift of the Altiplano revealed through ¹³C- ¹⁸O bonds in paleosol carbonates

Prosenjit Ghosh, Carmala N. Garzione, John M. Eiler

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345 Scopus citations

Abstract

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 ¹³C-¹⁸O 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.

Original language	English (US)
Pages (from-to)	511-515
Number of pages	5
Journal	Science
Volume	311
Issue number	5760
DOIs	https://doi.org/10.1126/science.1119365
State	Published - Jan 27 2006
Externally published	Yes

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title = "Rapid uplift of the Altiplano revealed through 13C- 18O bonds in paleosol carbonates",

abstract = "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 13C-18O 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.",

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AU - Garzione, Carmala N.

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PY - 2006/1/27

Y1 - 2006/1/27

N2 - 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 13C-18O 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.

AB - 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 13C-18O 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.

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Rapid uplift of the Altiplano revealed through ¹³C- ¹⁸O bonds in paleosol carbonates

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