Thermal regime of a downgoing slab and new global tectonics
1970; American Geophysical Union; Volume: 75; Issue: 8 Linguagem: Inglês
10.1029/jb075i008p01397
ISSN2156-2202
Autores Tópico(s)earthquake and tectonic studies
ResumoJournal of Geophysical Research (1896-1977)Volume 75, Issue 8 p. 1397-1419 Thermal regime of a downgoing slab and new global tectonics John W. Minear, John W. MinearSearch for more papers by this authorM. Nafi Toksöz, M. Nafi ToksözSearch for more papers by this author John W. Minear, John W. MinearSearch for more papers by this authorM. Nafi Toksöz, M. Nafi ToksözSearch for more papers by this author First published: 10 March 1970 https://doi.org/10.1029/JB075i008p01397Citations: 265AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The new global tectonics and sea-floor spreading hypotheses imply downwarping and descent of the lithosphere in island-arc regions. These downgoing slabs of crust and upper-mantle material will affect the local temperature regime. Geophysically observable variables of surface-heat flux and gravity and seismic travel times will be influenced by the temperature. Using a quasi-dynamic computational scheme and a finite difference solution of the conservation of energy equation we have determined the effects of spreading rate, adiabatic compression, radioactivity, phase changes, and strain heating on the temperature regime of a downgoing slab. Effects of these parameters on surface heat flux, gravity anomalies, and local seismic travel time are also estimated. Predicted travel-time anomalies show good agreement with observed anomalies in Japan and Tonga-Kermadec. 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Citing Literature Volume75, Issue810 March 1970Pages 1397-1419 ReferencesRelatedInformation
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