Gotnia Fm
Period:
Jurassic
Age Interval:
Kimmeridgian – Tithonian, Iq2, Kw1
Province:
Iraq, Kuwait
Lithology and Thickness
Comprises anhydrite with subordinate beds of brown calcareous shales, thin black bituminous shales, and recrystallized oolitic limestones. Maximum thickness of 700m is reached in Kuwait.
Lithology Pattern:
Evaporite
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Najmah Fm.
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Sulaiy Fm with an unconformity. In Kuwait, it is Hith Anhydrite 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],[47.57,29.72],[47.83,29.52],[47.55,29.26],[47.56,28.85],[47.87,28.52],[50.04,28.6],[50.61,28.72],[50.06,29.27],[49.12,29.46],[48.54,29.8],[48.15,29.99],[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
Kimmeridgian – Tithonian
Age Span:
Beginning stage:
Kimmeridgian
Fraction up in beginning stage:
0.3
Beginning date (Ma):
153.12
Ending stage:
Tithonian
Fraction up in the ending stage:
0.5
Ending date (Ma):
146.17
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From S. Z. Jassim and J. C. Goff, Geology of Iraq, 2006. pg 117, Fig. 10-1: "Stratigraphic correlation of Megasequence AP7."