An extensive apatite fission-track survey has been carried out on the Marnoso-arenacea foredeep succession in the Northern Apennines. The data show a general decrease of the maximum paleotemperature undergone by the sediments toward the foreland areas. The maximum burial calculated by using a geothermal gradient of 20 degrees C km(-1) spans from more than 5 km to less than 2.5 km and indicates that the previously assessed total thickness of the Marnoso-arenacea succession is not enough to justify the determined values. It is concluded that a now eroded Ligurian wedge, up to 5 km thick, was present on top of the Marnoso-arenacea sediments.

Discriminating between tectonic and sedimentary burial in a foredeep succession, Northern Apennines

ZATTIN, MASSIMILIANO;
2000

Abstract

An extensive apatite fission-track survey has been carried out on the Marnoso-arenacea foredeep succession in the Northern Apennines. The data show a general decrease of the maximum paleotemperature undergone by the sediments toward the foreland areas. The maximum burial calculated by using a geothermal gradient of 20 degrees C km(-1) spans from more than 5 km to less than 2.5 km and indicates that the previously assessed total thickness of the Marnoso-arenacea succession is not enough to justify the determined values. It is concluded that a now eroded Ligurian wedge, up to 5 km thick, was present on top of the Marnoso-arenacea sediments.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/150288
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