Ramsu Fm
Period:
Cryogenian, Ediacaran
Age Interval:
late Cryogenian-early Ediacaran (very uncertain)
Province:
NW Himalaya Kashmir Basin
Type Locality and Naming
Ramsu township about 200 Km from Jammu on NH-1A; ND: Ramsu village; by Vohra, 1966
Lithology and Thickness
Khaura Member (Phyllite, carbonaceous, pyrites, flaggy sericite,), Batrau Member (quartzite, Phyllite, diamictite, crystalline limestone), Dhadpeth Member (Quartzite, Schist and marbles), Pogul Member (Slate, phyllite, quartzite ), Zor Member (Quartzite, pebble quartzite, argillites). Thickness: 500-1300 m variable
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Unconformable with underlying crystalline rocks of the Salkhala Gr
Upper contact
Unconformably overlain by Machhal Formation
Regional extent
GeoJSON
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Fossils
Devoid of fauna
Age
Diamictite of Batrau Mbr suggests that lower part is within Cryogenian? For temporary graphics, shown as spanning late Cryogenian-early Edicaran. [might contain major internal hiatuses?]
Age Span:
Beginning stage:
Cryogenian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
677.50
Ending stage:
Ediacaran
Fraction up in the ending stage:
0.5
Ending date (Ma):
586.90
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Birendra P. Singh (2009; Chapter 5 in Dr. Raju's Indian Plate stratigraphy monograph; ONGC Bull. 44, no. 2)