Discriminating between tectonic and sedimentary b
- journal_title：Journal of the Geological Society
- Contributor：MASSIMILIANO ZATTIN ; ALBERTO LANDUZZI ; VINCENZO PICOTTI ; GIAN GASPARE ZUFFA
- Publisher：Geological Society of London
- Date：2000-
- Format：text/html
- Language：en
- Identifier：10.1144/jgs.157.3.629
- journal_abbrev：Journal of the Geological Society
- issn：0016-7649
- volume：157
- issue：3
- firstpage：629
- section：Regular Article
摘要
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.