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dc.contributor.author
Petersen, Robert I.
dc.contributor.author
Stegman, Dave R.
dc.contributor.author
Tackley, Paul
dc.date.accessioned
2022-06-28T08:42:50Z
dc.date.available
2017-06-12T18:30:02Z
dc.date.available
2022-06-23T05:38:45Z
dc.date.available
2022-06-28T08:42:50Z
dc.date.issued
2017-03-24
dc.identifier.issn
1869-9510
dc.identifier.issn
1869-9529
dc.identifier.other
10.5194/se-8-339-2017
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/126418
dc.identifier.doi
10.3929/ethz-b-000126418
dc.description.abstract
A key element of plate tectonics on Earth is that the lithosphere is subducting into the mantle. Subduction results from forces that bend and pull the lithosphere into the interior of the Earth. Once subducted, lithospheric slabs are further modified by dynamic forces in the mantle, and their sinking is inhibited by the increase in viscosity of the lower mantle. These forces are resisted by the material strength of the lithosphere. Using geodynamic models, we investigate several subduction models, wherein we control material strength by setting a maximum viscosity for the surface plates and the subducted slabs independently. We find that models characterized by a dichotomy of lithosphere strengths produce a spectrum of results that are comparable to interpretations of observations of subduction on Earth. These models have strong lithospheric plates at the surface, which promotes Earth-like single-sided subduction. At the same time, these models have weakened lithospheric subducted slabs which can more easily bend to either lie flat or fold into a slab pile atop the lower mantle, reproducing the spectrum of slab morphologies that have been interpreted from images of seismic tomography.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
The Subduction Dichotomy of Strong Plates and Weak Slabs
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
ethz.journal.title
Solid Earth
ethz.journal.volume
8
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
Solid Earth
ethz.pages.start
339
en_US
ethz.pages.end
350
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03698 - Tackley, Paul / Tackley, Paul
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03698 - Tackley, Paul / Tackley, Paul
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03698 - Tackley, Paul / Tackley, Paul
ethz.date.deposited
2017-06-12T18:30:32Z
ethz.source
ECIT
ethz.identifier.importid
imp5936551f87e8d67578
ethz.ecitpid
pub:189150
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T14:37:26Z
ethz.rosetta.lastUpdated
2018-11-03T01:39:30Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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