Qusaiba Fm
Period:
Silurian
Age Interval:
Rhuddanian – Telychian, Sa (1,2)
Province:
Saudi Arabia
Type Locality and Naming
Column: Saudi Arabia Outcrop, Saudi Arabia Subsurface. Divided into Qusaiba 5, Qusaiba 4 Fm, Qusaiba 3, Qusaiba 2, Qusaiba 1
Synonym:
Lithology and Thickness
Claystone. It is divided into Qusaiba 5, Qusaiba 4, Qusaiba 3, Qusaiba 2, Qusaiba 1
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Uqlah Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Jarish Mbr Fm
Regional extent
GeoJSON
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Fossils
Age
Rhuddanian – Telychian
Age Span:
Beginning stage:
Rhuddanian
Fraction up in beginning stage:
0.25
Beginning date (Ma):
442.43
Ending stage:
Telychian
Fraction up in the ending stage:
0.56
Ending date (Ma):
435.42
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4