Abstract

An equivalent of the Faraoni Level, originally described in the Umbria-Marche Basin (central Italy) as a regional marker-bed and then recognised in the Venitian southern Alps, is discovered in the Vergons section (Vocontian Basin, S-E France). Lithological, micropaleontological and geochemical characteristics of this level are very similar in the three basins, palaeogeographically separated by 1000 km. This marker-bed is characterised by its richnes in marine organic matter, although is organic content in the Vocontian Basin is lower compared to that of Italian sites. Thus, a late Hauterivian anoxic event, which led to the deposition of this level, is expressed in both northern and southern margins of the Mediterranean Tethys.

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