Deshichiling Fm
Period:
Ordovician
Age Interval:
early Ordovician
Province:
Bhutan
Type Locality and Naming
Tethyan Himalaya
Lithology and Thickness
In Dang Chu klippe: Gray to brown, fine-grained quartz sandstone.
Lithology Pattern:
Fine-grained sandstone
Relationships and Distribution
Lower contact
Conformable (?) onto Singhi Fm
Upper contact
Conformably (?) overlain by Maneting Fm
Regional extent
GeoJSON
null
Fossils
Age
Uncertain. Had been assigned as Late Cambrian, but schematic column of Martin (2017) implies a younger age. For graphic purposes, shown as earliest Ordovician.
Age Span:
Beginning stage:
Tremadocian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
486.85
Ending stage:
Tremadocian
Fraction up in the ending stage:
1.0
Ending date (Ma):
477.08
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extract from Legend to "Geologic Map of Bhutan" (Long, S., McQuarrie, N., et al., 2011, Journal of Maps). 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.