Rutbah Fm
Period:
Cretaceous
Age Interval:
Cenomanian, Iq3
Province:
Iraq
Type Locality and Naming
Column: Rutba Uplift (W Iraq)
Synonym:
Lithology and Thickness
Comprises white to varicolored fine to coarse grained, cross-bedded quartz sands which are locally calcareous or clayey. Thickness varies from 30-40m near Rutba.
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Mauddud Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Ms'ad Fm
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[39.46,32.74],[39.29,32.46],[39.43,32.14],[39.97,32.04],[40.05,32.1],[40.04,32.34],[39.95,32.64],[39.46,32.74]]]]}}
Fossils
Age
Cenomanian
Age Span:
Beginning stage:
Cenomanian
Fraction up in beginning stage:
0.4
Beginning date (Ma):
97.86
Ending stage:
Cenomanian
Fraction up in the ending stage:
0.6
Ending date (Ma):
96.54
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."