Asmari Fm
Period:
Paleogene
Age Interval:
Rupelian – Burdigalian, Ir3
Province:
Iran
Type Locality and Naming
Column: Iran East
Synonym:
Lithology and Thickness
It consists of 1030 feet of resistant, feature-forming, cream to brown-weathering, well-jointed limestone with shelly intercalations. The Ahwaz sandstone member is a sequence of calcareous sandstone, sandy limestone, and, minor shale at the basal few hundred feet of the Asmari.
Lithology Pattern:
Sandy limestone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Padeh-Jahrum Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Gachsaran Fm
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[60.91,34.94],[58.43,35.31],[56.65,34.79],[58.62,28.24],[59.33,27.29],[61.16,26.51],[62.64,27.27],[60.86,30.08],[60.76,31.51],[60.48,33.16],[60.35,34.1],[60.91,34.94]]]]}}
Fossils
Age
Rupelian – Burdigalian
Age Span:
Beginning stage:
Rupelian
Fraction up in beginning stage:
0.2
Beginning date (Ma):
32.58
Ending stage:
Burdigalian
Fraction up in the ending stage:
0.1
Ending date (Ma):
20.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4. James at. al., 1965, page 2229