Stvaast Chalk Mons Basin Fm
Period:
Cretaceous
Age Interval:
Province:
West Belgium (Mons)
Type Locality and Naming
Column: Mons Basin
Lithology and Thickness
St-Vaast Chalk Fm:
LITHOLOGY=White to greyish chalk, clay minerals present (However, not marly). M. decipiens present.
CALIBRATION=Drawn 55% up in Coniacian
REFERENCE=Robaszynski et al., 2001
LITHOLOGY=White to greyish chalk, clay minerals present (However, not marly). M. decipiens present.
CALIBRATION=Drawn 55% up in Coniacian
REFERENCE=Robaszynski et al., 2001
Lithology Pattern:
Chalk
Relationships and Distribution
Lower contact
Upper contact
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[3.95,51.45],[2.95,50.45],[3.95,49.45],[4.95,50.45],[3.95,51.45]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Coniacian
Fraction up in beginning stage:
0.55
Beginning date (Ma):
87.36
Ending stage:
Santonian
Fraction up in the ending stage:
0.7
Ending date (Ma):
84.27
Depositional setting
Depositional pattern:
Additional Information
long: 3.95 lat: 50.45
Compiler: