학술논문

Geothermics of the Apenninic subduction
Document Type
article
Source
Annals of Geophysics, Vol 40, Iss 5 (1997)
Subject
Apennine chain
geothermics
subduction
Meteorology. Climatology
QC851-999
Geophysics. Cosmic physics
QC801-809
Language
English
ISSN
1593-5213
2037-416X
Abstract
The subduction of the Adriatic microplate is analysed from a geothermal point of view. In particular four main geodynamic units are distinguished: foreland, foredeep and slab, accretionary prism, and back-arc basin. Each of them is examined from a geothermal point of view and the related open question are discussed. The most relevant results are the determination of the undisturbed geothermal gradient in the aquifer of the foreland; the discovery of a « hot » accretionary prism; and a new model of instantaneous extension of the back-arc basins. The main conclusion is that geothermal data are consistent with a westward dipping subduction that migrated eastward producing a sequence of several episodes at the surface.