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Tewari, Vinod C.
- Algal Structures from the Upper Krol-Lower Tal Formations of Garhwal and Mussoorie Synclines and their Palaeo-Environmental Significance
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1 Wadia Institute of Himalayan Geology, Dehra Dun 248001, IN
1 Wadia Institute of Himalayan Geology, Dehra Dun 248001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 26, No 2 (1985), Pagination: 111-117Abstract
Algal pisolites, oncoids, columnar stromatolites and columnar layered stromatolites have been recorded from cherty dolomitic limestones from Upper Krol and Lower Tal formations. The algal mat facies show bird's eye structures and irregular fenestral fabric suggesting an intertidal supratidal environment of deposition for Upper Krol (D and E) Formation of Garhwal syncline. The basal Lower Tal Formation of Mussoorie syncline also represents a complex algal oncoidal-stromatolitic (protected tidal flat/lagoonal) facies with restricted circulation. The association of phosphorite with stromatolites and oncoids proves the phosphorite to be deposited in a shallow water environment. The presence of pyrite and associated black shales indicate an erobic condition.- The Rise and Fall of the Vendian Biota: IGCP - 493
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PDF Views:158
Authors
Affiliations
1 Wadia Institute of Himalayan Geology, Dehradun, IN
1 Wadia Institute of Himalayan Geology, Dehradun, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 64, No 6 (2004), Pagination: 821-823Abstract
No Abstract.- Discovery of Amino Acids from Didwana-Rajod Meteorite and its Implication on Origin of Life
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PDF Views:136
Authors
Affiliations
1 Wadia Institute of Himalayan Geology, Dehra Dun - 248 001, Uttaranchal, IN
2 J.N.V. University, Jodhpur - 340 005, Rajasthan, IN
3 Centre for Laser Spectroscopy, Manipal Academy of Higher Education, Manipal, IN
1 Wadia Institute of Himalayan Geology, Dehra Dun - 248 001, Uttaranchal, IN
2 J.N.V. University, Jodhpur - 340 005, Rajasthan, IN
3 Centre for Laser Spectroscopy, Manipal Academy of Higher Education, Manipal, IN