Rumalia Fm
Period:
Cretaceous
Age Interval:
Cenomanian, Iq2
Province:
Iraq
Type Locality and Naming
Column: Central Iraq
Synonym:
Lithology and Thickness
Comprises fine-grained, marly oligosteginal limestones with marls passing down into fine-grained, chalky limestones. Beds of dolomite, dolomitic limestones and subordinate shales occur in some wells.
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Ahmadi Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Mishrif Fm
Regional extent
GeoJSON
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Fossils
Age
Cenomanian
Age Span:
Beginning stage:
Cenomanian
Fraction up in beginning stage:
0.58
Beginning date (Ma):
96.67
Ending stage:
Cenomanian
Fraction up in the ending stage:
0.9
Ending date (Ma):
94.56
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."