Raumid Fm
Period:
Carboniferous, Permian
Age Interval:
Bashkirian – Asselian (C?rm), R1
Province:
SE Tajik (SE Pamir)
Type Locality and Naming
It was identified in 1949 by B. P. Barhatov, who considered it conditionally Lower Paleozoic.
Synonym: Raumidskaya suite, Раумидская свита
Reference section:
Lithology and Thickness
The Raumid Fm is poorly studied. It is composed of irregularly interbedded dark gray, metamorphosed quartz-feldspathic sandstones and quartz-chloritic slates containing lenses of marbleized limestones. The incomplete thickness is 1000 m.
Lithology Pattern:
Sandy limestone
Relationships and Distribution
Lower contact
The base of the formation is not exposed.
Upper contact
It is covered conformably by marbleized limestones of the Permian? Shuvdarin Fm (шувдаринской свиты).
Regional extent
It is widespread in the Southwestern Pamir, in the Rushan Range.
GeoJSON
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Age
It was identified in 1949 by B. P. Barhatov, who considered it conditionally Lower Paleozoic. Later, B. P. Barhatov (1963) treated the Rushan complex in the age interval of Carbon to Upper Triassic. V. I. Dranov (1963c) included this suite in the Carboniferous-Permian Rushan complex he had identified. * Its attribution to the Carboniferous system is conditional - based on its position in the section below the Permian? formations and due to the similarity in composition with the lower Carboniferous - Lower Permian Bazardarin Fm (базардаринокой свитой) of the South-East Pamir.
Age Span:
Beginning stage:
Bashkirian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
323.40
Ending stage:
Asselian
Fraction up in the ending stage:
1.0
Ending date (Ma):
293.52
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Lakhsh district, 276.