Marpo Fm
Period:
Cretaceous
Age Interval:
late Maastrichtian
Province:
NW Himalaya Zanskar-Spiti
Type Locality and Naming
Marpo section Zanskar Range (Spanboth Valley); Gaetani and Garzanti, 1991
Lithology and Thickness
Dark grey wackestone, packstone, grainstone, nodules, rich in lime mud and silty marls. Thickness: 50-80 m
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Normal contact with the underlying Kangi La Fm
Upper contact
Normal contact with overlying Stumpata Fm
Regional extent
GeoJSON
null
Fossils
Trace fossils Zoophycus ; Omphalocyclus macropor us assemblages; (1) Omphalocyclus macropor us assemblages associated with forams (textularids) and algae (Archeolithothamnium, Cymopolia; Trinocladus etc). (2) Dasycladacae algae assemblages: (Acroporella ; Cymopolia ; Trinocaladus ; Corallinacea etc.)
Age
Late Maastrichtian
Age Span:
Beginning stage:
Maastrichtian
Fraction up in beginning stage:
0.3
Beginning date (Ma):
70.33
Ending stage:
Maastrichtian
Fraction up in the ending stage:
1.0
Ending date (Ma):
66.04
Depositional setting
Transition from inner to outer shelf environment
Depositional pattern:
Additional Information
Compiler:
Birendra P. Singh (2009; Chapter 5 in Dr. Raju's Indian Plate stratigraphy monograph; ONGC Bull. 44, no. 2)