Digma Fm
Period:
Cretaceous
Age Interval:
Maastrichtian, Iq3
Province:
Iraq
Type Locality and Naming
Column: Rutba Uplift (W Iraq)
Synonym:
Lithology and Thickness
Comprises phosphatic, glauconitic, locally silicified marls. 50m thick at type section.
Lithology Pattern:
Pelagic marl
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Tayarat Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Akashat 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
Maastrichtian
Age Span:
Beginning stage:
Maastrichtian
Fraction up in beginning stage:
0.6
Beginning date (Ma):
68.49
Ending stage:
Maastrichtian
Fraction up in the ending stage:
0.9
Ending date (Ma):
66.65
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From S. Z. Jassim and J. C. Goff, Geology of Iraq, 2006. pg 141, Fig. 12-1: "Stratigraphic correlation of formations of the Late Early Turonian-Danian Megasequence"