Maneting Fm
Period:
Ordovician
Age Interval:
early Ordovician
Province:
Bhutan
Type Locality and Naming
Tethyan Himalaya
Lithology and Thickness
Dark-gray, graphitic, crenulated, finely-laminated, biotite-garnet phyllite (Tangri and Pande, 1995; Long and McQuarrie, 2010). At least 1,000 m-thick (Long and McQuarrie, 2010).
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Conformable (?) onto Deshichiling Fm
Upper contact
Schematic diagram of Martin (2017) suggests possible disconformable contact (spanning Middle Ordovician?) to the overlying Quartzite of uppermost Pele La Gr (called PeleLaQuartzite Fm here)
Regional extent
GeoJSON
null
Fossils
Age
Uncertain. For graphic purposes, shown as upper-Lower Ordovician.
Age Span:
Beginning stage:
Floian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
477.08
Ending stage:
Floian
Fraction up in the ending stage:
1.0
Ending date (Ma):
471.26
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.