B'ir Al Ghanam Gr
Period:
Jurassic
Age Interval:
Hettangian – Callovian, Lb1
Province:
Libya
Type Locality and Naming
Lithology Pattern:
Gypsum-Anhydrite
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Basement
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Chameau Mort Sandstone Fm (Tiji Gr)
Regional extent
GeoJSON
null
Fossils
Age
Hettangian – Callovian
Age Span:
Beginning stage:
Hettangian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
201.36
Ending stage:
Callovian
Fraction up in the ending stage:
1.0
Ending date (Ma):
161.53
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Chart derived from: USGS Correlation Chart and Columnar Section for Rocks in Libya, 1963. Descriptions from: Hallet, Don: Petroleum Geology of Libya, 2002.