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The Interdisciplinary Earth: A Volume in Honor of Don L. Anderson
GSA Special Papers
The Interdisciplinary Earth: A Volume in Honor of Don L. Anderson
CONTAINS OPEN ACCESS
Author(s)
Gillian R. Foulger;
Gillian R. Foulger
Department of Earth Sciences, Durham University, Durham DH1 3LE, UK
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Michele Lustrino;
Michele Lustrino
Dipartimento di Scienze della Terra, Universita` degli Studi di Roma La Sapienza, P.le A. Moro, 5, 00185 Roma, Italy
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Scott D. King
Scott D. King
Department of Geosciences, Virginia Tech, Blacksburg, Virginia 24061, USA
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Geological Society of America

Volume
514
Copyright:
© 2015 Geological Society of America
Attribution: You must attribute the work in the manner specified by the author or licensor (but no 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:
9780813725147
Publication date:
October 01, 2015
Book Chapter
Are large oceanic depth anomalies caused by thermal perturbations?
Author(s)
Carol A. Stein
Department of Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, Illinois 60607-5079, USA
;
Carol A. Stein
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Seth Stein
Department of Earth and Planetary Sciences, Northwestern University, Evanston, Illinois 60208, USA
Seth Stein
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Published:October 01, 2015
The average depth and heat flow of oceanic lithosphere as functions of age are well described by cooling plate models in which old lithosphere approaches an asymptotic thermal structure, causing average depth and heat flow to flatten. However, some areas are significantly shallower or deeper than the global average for their age. One possibility is that the deviations reflect variations in lithospheric temperature structure. Another is that the deviations reflect processes including excess volcanism or dynamic effects of mantle flow. The first hypothesis assumes that the average flattening reflects thermal perturbations to halfspace cooling, so the temperature structures of areas...
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