Physics – Geophysics
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30k...4f&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 11, pp. 4-1, CiteID 1550, DOI 10.1029/2002GL016766
Physics
Geophysics
23
Marine Geology And Geophysics: Heat Flow (Benthic) And Hydrothermal Processes
Scientific paper
New thermal data from 18-24 Ma lithosphere on the Cocos Plate delineate contrasting subsurface thermal conditions in adjacent sections of crust. Heat flow through seafloor created at the East Pacific Rise is generally suppressed by ~70% relative to conductive lithospheric cooling models, whereas heat flow through adjacent, similarly-aged lithosphere generated at the Cocos-Nazca Spreading Center is consistent with these models. The transition between thermal regimes is remarkably abrupt, only 2-5 km wide, indicating a shallow hydrothermal origin. The transition is more closely associated with differences in the distribution of basement outcrops than with tectonic boundaries, demonstrating the importance of the former in extracting heat from the lithosphere on a regional basis.
Bodzin R.
Cherkaoui A.
Fisher Andrew T.
Harris Richard N.
Hutnak Michael
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