The Zenne Group ( Dutch : Zenne Groep ) is a group of rock strata in the subsurface of central and northwest Belgium . The group consists of three formations , all from the Ypresian and Lutetian ages (early Eocene , 50 to 40 million years old). These formation have their shallow marine facies in common.
1-597: The three formations are: Stratigraphically on top of the Zenne Group are the late Eocene sands and clays of the Maldegem Formation , which is not divided into a group. The Zenne Group is almost everywhere found on top of the early Eocene Ieper Group . This Belgium location article is a stub . You can help Misplaced Pages by expanding it . This article about a specific stratigraphic formation in Europe
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