Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Late Precambrian-Early Cambrian Trace Fossils from Tethyan Himalaya, Bhutan and their Bearing on the Precambrian-Cambrian Boundary


Affiliations
1 Geological Survey of India, 3, Sector 33, Chandigarh - 160 020, India
2 103, Sector 7, Panchkula - 160 018, India
3 Geological Survey of India, Aliganj Extension, Lucknow- 226 001, India
     

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Ichnofossils Arenicolites, Didymaulichnus, Gordia, Helminthopsis, Monomorphichnus, Phycodes pedum and Planolites A, B and C are described from the Late Precambrian -Middle Cambrian Pele La Group exposed in the Tang chu - Wachi La sector of the Bhutan Himalaya. The Precambrian-Cambrian boundary in this section is tentatively placed below the Phycodes pedumlevel, in the middle part of the Maneting Formation.

The volcanics of the Singhi Formation, occurring at the base of the Pele La Group represent an important Neoproterozoic event.


Keywords

Trace Fossils, Precambrian-Cambrian Boundary, Bhutan Himalaya.
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  • Late Precambrian-Early Cambrian Trace Fossils from Tethyan Himalaya, Bhutan and their Bearing on the Precambrian-Cambrian Boundary

Abstract Views: 181  |  PDF Views: 2

Authors

S. K. Tangri
Geological Survey of India, 3, Sector 33, Chandigarh - 160 020, India
O. N. Bhargava
103, Sector 7, Panchkula - 160 018, India
A. C. Pande
Geological Survey of India, Aliganj Extension, Lucknow- 226 001, India

Abstract


Ichnofossils Arenicolites, Didymaulichnus, Gordia, Helminthopsis, Monomorphichnus, Phycodes pedum and Planolites A, B and C are described from the Late Precambrian -Middle Cambrian Pele La Group exposed in the Tang chu - Wachi La sector of the Bhutan Himalaya. The Precambrian-Cambrian boundary in this section is tentatively placed below the Phycodes pedumlevel, in the middle part of the Maneting Formation.

The volcanics of the Singhi Formation, occurring at the base of the Pele La Group represent an important Neoproterozoic event.


Keywords


Trace Fossils, Precambrian-Cambrian Boundary, Bhutan Himalaya.