Mizdah Fm
Period:
Cretaceous
Age Interval:
Turonian – Santonian, Lb1
Province:
Libya
Type Locality and Naming
Column: Tripolitania and Sirte Basin
Synonym:
Lithology and Thickness
Members: 1. Thala limestone, which consists of massive gypsum, marl, and marly limestone. Rich with faunal fossils, and shows a transition from lagoonal deposition to shallow neritic. 2. Mazuzah limestone, composed of crystalline limestone and dolomite with intervals of marly and chalky limestone. Fossiliferous, deposited in shallow-waer, high energy environment.
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Sidi as Sid and Nefusa Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Zimam Fm
Regional extent
GeoJSON
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Fossils
Age
Turonian – Santonian
Age Span:
Beginning stage:
Turonian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
91.65
Ending stage:
Santonian
Fraction up in the ending stage:
0.5
Ending date (Ma):
84.68
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.