Gushkamar Gr
Period:
Silurian, Devonian
Age Interval:
Rhuddanian – Emsian, Ir2
Province:
Iran
Type Locality and Naming
Lithology Pattern:
Sandy limestone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Mila Gr (Shirgesht Fm)
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Sibzar Fm (Ozbak Kuh Gr)
Regional extent
GeoJSON
null
Fossils
Age
Rhuddanian - Emsian
Age Span:
Beginning stage:
Rhuddanian
Fraction up in beginning stage:
0.4
Beginning date (Ma):
442.04
Ending stage:
Emsian
Fraction up in the ending stage:
0.95
Ending date (Ma):
395.11
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4