Memouiat Fm
Period:
Ordovician
Age Interval:
Katian – Hirnantian Lb2
Province:
Libya
Type Locality and Naming
Column: Fezzan Basin
Synonym:
Lithology and Thickness
Sandstone.
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Garqaf Gr (Melaz Shuqran Fm)
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Tanzuft Shale Fm
Regional extent
GeoJSON
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Fossils
Age
Katian – Hirnantian. USGS Chart places this formation at the base of the Ashgillian and Caradocian stage, upper Ordovician.
Age Span:
Beginning stage:
Katian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
452.75
Ending stage:
Hirnantian
Fraction up in the ending stage:
1.0
Ending date (Ma):
443.07
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.