Bilju Fm
Period:
Ediacaran
Age Interval:
Ediacaran ( ?? Ma)
Province:
NW Himalaya Kumaun-Garhwal Tethyan Himalaya
Type Locality and Naming
Reference section: Bilju Village Gori Ganga Valley, Pithoragarh, Kumaun Northwest Himalayan region. [Original Publication: Sinha, A.K., 1989. Geology of the Higher Central Himalaya. John Wiley and Sons, Chichester, U. K. 1–219.]
[Figure 1: Location of the Kumaun-Garhwal region (from Celerier et al., GSA Bull 2009)]
[Figure 2: Geologic map of the Kumaun-Garhwal region (from Celerier et al., GSA Bull 2009)]
Lithology and Thickness
Sandstone. Pyrite-rich dirty white quartzite with siltstone, slate and limestone lenses. 500m (approximately)
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Gradational contact with underlying the Rilkot Fm.
Upper contact
Conformably overlain by the Milam Fm.
Regional extent
Kumaun to Garhwal regions
GeoJSON
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Fossils
None
Age
Precambrian. Considering that it is conformable with overlying Cambrian Milam Fm, and "only" 500 m of sandstone, then for graphic purposes shown as upper Ediacaran.
Age Span:
Beginning stage:
Ediacaran
Fraction up in beginning stage:
0.7
Beginning date (Ma):
567.66
Ending stage:
Ediacaran
Fraction up in the ending stage:
1.0
Ending date (Ma):
538.80
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Birendra Singh & O.N. Bhargava.