Université de Fribourg

Quantification of mass transfers and mineralogical transformations in a thrust fault (Monte Perdido thrust unit, southern Pyrenees, Spain)

Trincal, Vincent ; Charpentier, Delphine ; Buatier, Martine D. ; Grobéty, Bernard ; Lacroix, Brice ; Labaume, Pierre ; Sizun, Jean-Pierre

In: Marine and Petroleum Geology, 2014, vol. 55, p. 160-175

In fold-and-thrust belts, shortening is mainly accommodated by thrust faults which are preferential zones for recrystallisation and mass transfer. This study focuses on a detachment fault related to the emplacement of the Monte Perdido thrust unit in the southern Pyrenees. The studied fault zone consists of a 10 m thick intensively foliated phyllonite developed within the Millaris marls, of...