Upper Kali Gandaki Gr
Period:
Calymmian
Age Interval:
early Calymmian
Province:
Nepal Lesser Himalaya
Type Locality and Naming
Tansen and lower Kali Gandaki region. Upward succession of Ramdighar Fm and Kerabari Fm
Lithology and Thickness
See individual formations; dolomite and clayey limestone.
Lithology Pattern:
Dolomitic limestone
Relationships and Distribution
Lower contact
Overlies the Saidi Khola Fm sandstones and shales at the top of the Middle Kali Gandaki Gr.
Upper contact
Regional extent
"The Upper Kali Gandaki Group is predominated by claystones and carbonates. It is distributed in the tight synclinal cores as well as in the Mahabharat Range, bordering on the Siwaliks."
GeoJSON
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Fossils
Age
Martin (2017) schematically suggests early-middle Calymmian (ca. 1570 to 1550 Ma)
Age Span:
Beginning stage:
Calymmian
Fraction up in beginning stage:
0.2
Beginning date (Ma):
1,560.00
Ending stage:
Calymmian
Fraction up in the ending stage:
0.35
Ending date (Ma):
1,530.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Descriptions from Megh Raj Dhital (2015, Geology of Nepal: Regional Perspective of the Classic Collided Orogen, Springer Publ., 499 pp.). Age spans estimated from correlation diagrams in Martin, A.J. (2017, "A review of Himalayan stratigraphy, magmatism, and structure", Gondwana Research, 49: 42-80; http://dx.doi.org/10.1016/j.gr.2017.04.031), but these are often controversial.