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°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.
Zattin M., Landuzzi A., Picotti V., Zuffa G.G. (2000). Discriminating between tectonic and sedimentary burial in a foredeep succession, Northern Apennines. JOURNAL OF THE GEOLOGICAL SOCIETY, 157(3), 629-633 [10.1144/jgs.157.3.629].
Discriminating between tectonic and sedimentary burial in a foredeep succession, Northern Apennines
Zattin M.
;Landuzzi A.
;Picotti V.
;Zuffa G. G.
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°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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
