The information on this page is a summary description.
The full formal description is available here: Aubange Formation
Abbreviation
AUB
Parent unit
Child units
Ottemt Member
Lithological description
Grey sandy marl with centimetric to pluri-decimetric lenses of limestone and argillaceoussandy limestone. Locally, limonitic crusts or conglomerate. Fauna is relatively abundant and bioturbation generally high. A pluri-decimetric coquina bed is almost always present near the top of the formation, under the Ottemt Member. The extreme top of the formation is locally constituted by bluish marls with blue-grey limestone nodules (Ottemt Member, see Boulvain et al., 1995), or by bluegrey marly limestone beds (Saint-Mard), towards the west.
Age
Aubange Formation is dated from Upper Pliensbachian to Lower Toarcian Pleuroceras spinatum Zone to Dactylioceras tenuicostatum Zone (Maubeuge, 1954, 1971; Delsate, 1990).
Thickness
The thickness of Aubange and Messancy Formations varies between 35 and 40 m. It reaches approximately 45 m for Aubange Formation alone towards the east.
Area of occurrence
In the western part of Belgian Lorraine
Type locality
Latour borehole.
Alternative names
Authors
Boulvain, F., Belanger, I., Delsate, D., Ghysel, P., Godefrout, P., Laloux, M., Monteyne, R. & Roche, M.
Date
01/01/2001
Cite as
Boulvain, F., Belanger, I., Delsate, D., Ghysel, P., Godefrout, P., Laloux, M., Monteyne, R. & Roche, M., 2001. The Aubange Formation, 01/01/2001. National Commission for Stratigraphy Belgium. http://ncs.naturalsciences.be/lithostratigraphy/Aubange-Formation
