Mila Fm
Period:
Cambrian, Ordovician
Age Interval:
Cambrian Stage 4 – Tremadocian, Ir (1,4)
Province:
Iran
Type Locality and Naming
Column: Zagros belt (general), Column: Iran NW - Alborz
Synonym:
Lithology and Thickness
Thickness ~600m. Light colored, sparry, flaggy, nodular limestone. Contains abundant trilobites, brachiopods, and hyolithids. The formation contains dolomitic, shaley, marly, and sandy beds
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Lalun Sandstone Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Zard Kuh Fm
Regional extent
GeoJSON
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Fossils
Age
Cambrian Stage 4 – Tremadocian
Age Span:
Beginning stage:
Cambrian Stage 4
Fraction up in beginning stage:
0.8
Beginning date (Ma):
510.10
Ending stage:
Tremadocian
Fraction up in the ending stage:
0.25
Ending date (Ma):
484.41
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4