The effect of variable thermal diffusivity on kinematic models of subduction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10123808" target="_blank" >RIV/00216208:11320/12:10123808 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/" target="_blank" >http://dx.doi.org/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2011JB009119" target="_blank" >10.1029/2011JB009119</a>
Alternative languages
Result language
angličtina
Original language name
The effect of variable thermal diffusivity on kinematic models of subduction
Original language description
We examine the influence of variable thermal properties on the thermal state of a subducting slab in the upper mantle and the transition zone by combining a kinematic slab model with models of thermal conductivity. Thermal diffusivity and conductivity models for major mantle minerals in the MgO-SiO2 system are developed based on experimental measurements on these minerals at high pressure and temperature. The models show significantly higher thermal conductivity for stishovite and clinopyroxene comparedto the Mg2SiO4 polymorphs and majorite garnet. In our subduction model we consider scenarios with a differentiated slab (basalt-harzburgite-pyrolite) in a pyrolite mantle and uniform composition for both the slab and the mantle (pyrolite or a pure Mg2SiO4-based system). The role of highly conductive pyroxene is examined by taking it into account in some models and replacing it in others with majorite garnet. This choice has a strong influence on the thermal state of the slab, shifting t
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN
0148-0227
e-ISSN
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Volume of the periodical
117
Issue of the periodical within the volume
JULY
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
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UT code for WoS article
000306464400002
EID of the result in the Scopus database
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