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Direct calibration of salt sheet kinematics during gravity-driven deformation

Abstract:

Three-dimensional (3-D) seismic imaging techniques are used to identify a series of 21 deformed fluid escape pipes that transected a 1500-m-thick salt sheet at regular intervals over the past 1.7 m.y. By reconstructing these pipes to their original vertical cylindrical geometry, we show that the salt sheet deformed by Couette flow over this period. The average flow velocity of the top boundary of 2 (±0.3) mm/yr, equates to a bulk viscosity for the sheet of 2.3 × 1018 Pa·s, within the range ob...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1130/G40219.1

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
Hodgson, N More by this author
Rodriguez, K More by this author
Publisher:
Geological Society of America Publisher's website
Journal:
Geology Journal website
Volume:
46
Issue:
7
Pages:
623-626
Publication date:
2018-06-07
Acceptance date:
2018-05-22
DOI:
ISSN:
1943-2682 and 0091-7613
Pubs id:
pubs:865037
URN:
uri:84805f1f-789b-431c-8b40-3b20f6870697
UUID:
uuid:84805f1f-789b-431c-8b40-3b20f6870697
Local pid:
pubs:865037

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