Aaliji Fm
Period:
Paleogene
Age Interval:
Danian – Ypresian, Iq2
Province:
Iraq
Type Locality and Naming
Column: Central Iraq
Synonym: Also spelled "Aalaji”
Lithology and Thickness
Comprises grey and light brown clayey marl, clayey limestone, and shale with occasional microscopic fragments of chert and rare scattered glauconite. Silty and sandy beds occur towards the N and NE where the formation gradually passes into the clastic Kolosh formation. About 100m in type section.
Lithology Pattern:
Shallow-marine marl
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Shiranish Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Jaddala Fm
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[42.42,37.07],[43.76,36.44],[44.08,35.68],[43.17,35.17],[42.06,34.67],[42.05,32.37],[42.7,30.81],[44.68,29.26],[46.51,29.12],[47.22,30.15],[48.23,30.02],[48.38,30.15],[48.02,30.47],[47.99,30.95],[47.67,30.97],[47.84,31.83],[46.46,32.88],[46.07,32.97],[45.39,33.98],[45.79,35.12],[44.62,36],[43.2,37.3],[42.42,37.07]]]]}}
Fossils
Age
Danian - Ypresian
Age Span:
Beginning stage:
Danian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
63.85
Ending stage:
Ypresian
Fraction up in the ending stage:
0.7
Ending date (Ma):
50.45
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"