Qiba Fm
Period:
Cretaceous
Age Interval:
Cenomanian, Sa1
Province:
Saudi Arabia
Type Locality and Naming
Column: Saudi Arabia Outcrop
Synonym:
Lithology and Thickness
Red and purple silty, sandy shale; some green clay shale; common thin brown to black ironstone partings; a 0.1 m reddish-brown sandy silty granular dolomite with calcite-filled vugs at the base. Elsewhere nearby similar dolomite layers occur at higher levels.
Lithology Pattern:
Sandy claystone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Majma 1 Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Maliha Fm
Regional extent
GeoJSON
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Fossils
Age
Cenomanian
Age Span:
Beginning stage:
Cenomanian
Fraction up in beginning stage:
0.2
Beginning date (Ma):
99.18
Ending stage:
Cenomanian
Fraction up in the ending stage:
0.6
Ending date (Ma):
96.54
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. Steineke et. al., 1958, Page 1310