Machhal Fm
Period:
Cambrian
Age Interval:
early Cambrian
Province:
NW Himalaya Kashmir Basin
Type Locality and Naming
Machhal village (Kupwara district, NW Kashmir) and Wannar-Surigam section (Lolab Valley); Raina and Razdan, 1975.
Lithology and Thickness
Argillaceous sediments (+ Limestone + Chert); Zilant Gali Member (Slate, phyllite); Brasul Member (Limestone, argillite + chert + tuff). W to E thickness varies from 700 to 200 m. Thickness: 200-800 m.
Lithology Pattern:
Clayey limestone
Relationships and Distribution
Lower contact
Unconformable with underlying Ramsu Fm
Upper contact
Conformably overlain by the Lolab Fm
Regional extent
GeoJSON
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Fossils
Small shelly fossils (SSFs) microfauna (Coleoloides typicalis Walcott); Acritarch: Protoxphaeridium; Granomarzinata ; Kildinella ; Lophospaeridium; etc. (Kumar et al., 1984) Algae: Sphaerophycus ; Gunflintia ; Myxococcoides ; Palaeonacystis etc
Age
Age Span:
Beginning stage:
Fortunian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
538.80
Ending stage:
Cambrian Stage 2
Fraction up in the ending stage:
0.5
Ending date (Ma):
525.00
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)