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2.8. Messancy Formation-MES

 

Author: Dormal, 1894.

Description: Grey silty or silty-sandy laminar marl. The boundary between Ethe and Messancy Formations corresponds to the first sandy bed.

Stratotype: Latour borehole.

Area and thickness: Belgian Lorraine. In the area of Messancy, the formation reaches approximately 35 m in thickness. In the west of Belgian Lorraine, Messancy and Aubange Formations together total between 35 and 40 m. In Latour borehole, Messancy Formation has a thickness of 8 m.

Age: Messancy Formation is dated from Upper Pliensbachian Amaltheus margaritatus ammonite Zone (Maubeuge, 1954, 1971).