The information on this page is a summary description.
The full formal description is available here: Lust Formation
Abbreviation
LST
Parent unit
Child units
Lithological description
Shale mostly light grey, sometimes very light greenish grey, seldom black, interbedded by many fine layers or laminae of clayey siltstone or fine sandstone, finely laminated. It differs from the Deerlijk Fm by the large relative proportion of sandstone beds (Legrand, 1961a; Martin, 1969a).
Age
Graptolites described by Legrand (1961a) indicated a M. turriculatus and M. crispus biozones; after a restudy by Zalasiewicz in Van Grootel et al. (1998) the guerichi biozone (lower part of the “traditional” turriculatus biozone) with the gemmatus, ?renaudi and ?utilis subzones and the crispus biozone were recognised. The rich chitinozoan assemblages indicate a E. dolioliformis global biozone. Both groups indicate the lower half of the Telychian (upper Llandovery) (Van Grootel, 1990 ms; Van Grootel et al., 1998).
Thickness
>54 m.
Area of occurrence
Area in the subsurface of the SW of the Brabant Massif (Kortrijk, brewery Lust borehole, St-Antonius borehole; Steenkerke borehole).
Type locality
Kortrijk, brewery Lust borehole (BGS N° 83W44) between depths of -150 to -190 m.
Alternative names
Authors
Verniers, J., Herbosch, A., Vanguestaine, M., Geukes, F., Delcambre, B., Pingot, J.-L., Belanger, I., Hennebert, M., Debacker, T., Sintubin, M. & De Vos, W.
Date
01/01/2001
Cite as
Verniers, J., Herbosch, A., Vanguestaine, M., Geukes, F., Delcambre, B., Pingot, J.-L., Belanger, I., Hennebert, M., Debacker, T., Sintubin, M. & De Vos, W., 2001. The Lust Formation, 01/01/2001. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Lust-Formation
