Qamchuka Fm
Period:
Jurassic
Age Interval:
Sinemurian – Oxfordian, Sr1
Province:
Syria
Type Locality and Naming
Column: Syria
Synonym: Qamchuqa Fm (other spelling)
Lithology and Thickness
This formation is comprised of highly dolomitized limestone which are thick-bedded.
Lithology Pattern:
Dolomitic limestone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Sargelu Fm. Two unconformities are shown in the schematic strat column i.e., Pre-Dhruma Unconformity; corresponds to Aalenian Hiatus, Pre-Marrat Unconformity.
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Zubair Fm
Regional extent
GeoJSON
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Fossils
Age
Sinemurian – Oxfordian. Pre-Dhruma Unconformity; corresponds to Aalenian Hiatus, Pre-Marrat Unconformity at the base of Hettangian. To adjust in the Lexicon format, it is shown as Sinemurian – Oxfordian without gaps but Strat columns shows unconformities.
Age Span:
Beginning stage:
Sinemurian
Fraction up in beginning stage:
0.7
Beginning date (Ma):
194.87
Ending stage:
Oxfordian
Fraction up in the ending stage:
0.6
Ending date (Ma):
157.48
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4