In their recently published paper, C. Clerc et al. [2012] describe the geological setting of the Etang de Lherz peridotite body and give a short review of the associated clastic deposits, proposing a detailed analysis of the breccias cropping out in a limited area east of the lherzolite massif. The cartographic, sedimentological and metamorphic evidence leads the authors to regard these breccias as a shallow marine to lacustrine equivalent of the Albo-Cenomanian “Flysch noir” of the Pyrenees. This interpretation backs up their previous attribution of the breccias to a thick submarine clastic formation, of Albo-Cenomanian age, which incorporates olistoliths...

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