Hautrage Flints Formation

The information on this page is a summary description.
The full formal description is available here: Hautrage Flints Formation

Abbreviation HTR
Parent unit Chalk group
Child unit
Lithological description Chalky marls or coarse-grained chalks, slightly glauconitic, with numerous and voluminous irregular brown-black flints. These flints often contain numerous, small (mm size), white sponge spicules.
Age Late Turonian on the basis of Micraster leskei.
Thickness 3 to 25 m near Saint-Vaast in the eastern part of the basin.
Area of occurrence Mons Basin. Towards the west in France the equivalent is the “Craie à cornus”. Near the northern border of the Mons basin between Ghlin and Saint-Denis the Hautrage Formation is strongly silicified: see Saint-Denis Silicite Formation.
Type locality In the railway cutting at Hautrage (see Robaszynski, 1975, p. 36) .
Alternative names
Authors Robaszynski, F., Dhondt, A.V. & Jagt, J.W.M.
Date 01/01/2001
Cite as Robaszynski, F., Dhondt, A.V. & Jagt, J.W.M., 2001. The Hautrage Flints Formation, 01/01/2001. National Commission for Stratigraphy Belgium. http://ncs.naturalsciences.be/lithostratigraphy/Hautrage-Flints-Formation

Lithostratigraphic units

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