The growth of the central Andes, 22°S–26°S

J. Quade; M.P. Dettinger; B. Carrapa; P. DeCelles; K.E. Murray; K.W. Huntington; A. Cartwright; R.R. Canavan; G. Gehrels; M. Clementz

doi:10.1130/2015.1212(15)

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The growth of the central Andes, 22°S–26°S

Author(s)

J. Quade

Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA

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M.P. Dettinger

Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA

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;

B. Carrapa

Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA

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;

P. DeCelles

Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA

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;

K.E. Murray

Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA

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K.W. Huntington

Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195-1310, USA

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A. Cartwright

Mintec, Inc., 3544 East Fort Lowell Road, Tucson, Arizona 85716, USA

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R.R. Canavan

Department of Geology, University of Wyoming, Laramie, Wyoming 82071, USA

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G. Gehrels

Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA

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M. Clementz

Department of Geology, University of Wyoming, Laramie, Wyoming 82071, USA

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Doi:

https://doi.org/10.1130/2015.1212(15)

Published:

January 01, 2015

We synthesize geologic observations with new isotopic evidence for the timing and magnitude of uplift for the central Andes between 22°S and 26°S since the Paleocene. To estimate paleoelevations, we used the stable isotopic composition of carbonates and volcanic glass, combined with another paleoelevation indicator for the central Andes: the distribution of evaporites. Paleoelevation reconstruction using clumped isotope paleothermometry failed due to resetting during burial.

The Andes at this latitude rose and broadened eastward in three stages during the Cenozoic. The first, in what is broadly termed the “Incaic” orogeny, ended by the late Eocene, when magmatism and deformation had...

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GSA Memoirs

Geodynamics of a Cordilleran Orogenic System: The Central Andes of Argentina and Northern Chile

Author(s)

Geological Society of America

Volume

212

DOI:

https://doi.org/10.1130/MEM212

Attribution:You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). Noncommercial ‒ you may not use this work for commercial purpose. No Derivative works ‒ You may not alter, transform, or build upon this work. Sharing ‒ Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in other subsequent works and to make unlimited photocopies of items in this journal for noncommercial use in classrooms to further education and science.

ISBN print:

9780813712123

Publication date:

January 01, 2015

The growth of the central Andes, 22°S–26°S

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Contents

Geodynamics of a Cordilleran Orogenic System: The Central Andes of Argentina and Northern Chile

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The growth of the central Andes, 22°S–26°S

Figures & Tables

Contents

Geodynamics of a Cordilleran Orogenic System: The Central Andes of Argentina and Northern Chile

GeoRef

References

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