Heat flow and lithospheric thinning in the Ligurian Basin (N. W. Mediterranean)

Autor:	J.-P. Rehault, David L. Williams, R. P. Von Herzen, John G. Sclater, J. Jemsek
Rok vydání:	1985
Předmět:	Tectonic subsidence geography geography.geographical_feature_category Rift Thinning Crust Geophysics Structural basin Oceanic crust Lithosphere General Earth and Planetary Sciences Oceanic basin Geomorphology Geology
Zdroj:	Geophysical Research Letters. 12:693-696
ISSN:	0094-8276
Popis:	We present preliminary results of 78 new heat flow measurements collected on a transect across the central Ligurian Basin (South France to Corsica margins). The basin-wide flux has an average of 79 ± 21 mWm−2 with significant local and regional variability. Correction for the deposition of up to 5 km of post-rift sediment gives a mean value of 102 mWm−2 which is similar to values for normal oceanic crust of the same age (21 Ma). The total tectonic subsidence (TTS) calculated for the region with probable oceanic crustal structure is comparable to or somewhat greater than 21 Ma crust of the major ocean basins. The heat flow data overall are compatible with the observed TTS in showing substantial lithospheric thinning, but do not tightly constrain thermal models of continental extension and rifting.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b6acd8cfe7e9f681d650f8b6c6e03158 https://doi.org/10.1029/gl012i010p00693 Zobrazit plný text záznamu Plný text