𝔖 Bobbio Scriptorium
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A possible mechanism for the thermal asymmetry of the Ligurian basin

✍ Scribed by V. Pasquale; M. Verdoya; P. Chiozzi

Book ID
104463390
Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
600 KB
Volume
14
Category
Article
ISSN
0954-4879

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✦ Synopsis

ABSTRACT We propose a thermo‐mechanical model and a new interpretation of heat flux data for the Ligurian basin that may be a key to understanding the evolution of the NW Mediterranean. The model incorporates the removal of a portion of mantle lithosphere to explain the heat‐flux and subsidence anomaly of the eastern (Corsican) margin of the basin. This process is envisaged as a result of eastward asthenosphere flow induced by the Apennines subduction system. After a heating phase, time‐dependent conductive cooling and re‐thickening of the lithosphere result in re‐equilibrium of the thermal gradient to its initial value. Such a rifting mode can account for the asymmetric heat‐flux and subsidence pattern observed across the basin and the present‐day lithospheric thickness.

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