Khasib Fm
Period:
Cretaceous
Age Interval:
Turonian – Coniacian, Iq3
Province:
Iraq
Type Locality and Naming
Column: Central Iraq
Synonym:
Lithology and Thickness
Lower part consists of dark grey and greenish grey shales, and grey, fine-grained, clayey limestones. The upper part comprises grey, fine-grained clayey limestones. The thickness of the formation is highest in S Iraq, at 225m in the Zubair oil field.
Lithology Pattern:
Clayey limestone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Kifl Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Tanuma Fm
Regional extent
GeoJSON
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Fossils
Age
Late Turonian – Coniacian
Age Span:
Beginning stage:
Turonian
Fraction up in beginning stage:
0.6
Beginning date (Ma):
91.19
Ending stage:
Coniacian
Fraction up in the ending stage:
0.9
Ending date (Ma):
86.07
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From S. Z. Jassim and J. C. Goff, Geology of Iraq, 2006. pg 124, Fig. 11-1: "Stratigraphic correlation of formation of Megasequence AP8."