Awaynat Wanin Fm
Period:
Devonian
Age Interval:
Givetian – Famennian, Lb2
Province:
Libya
Type Locality and Naming
Column: Fezzan Basin
Synonym:
Lithology and Thickness
Repeated cyclothems of ferruginous and gypsiferous claystones, siltstones, and sandstones, which suggest a deltaic depositiona environment, and reworked by storms and tides. The sandstones are frequently cross-bedded. Fossiliferous.
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Wan Kasa Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Marar Fm
Regional extent
GeoJSON
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Fossils
Age
Givetian – Famennian
Age Span:
Beginning stage:
Givetian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
385.30
Ending stage:
Famennian
Fraction up in the ending stage:
1.0
Ending date (Ma):
359.30
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.