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Rathaiah, Y. V.
- Granites of Zoz Area, Baroda District, Gujarat and its Economic Significance
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Authors
Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, Baroda-390 001, IN
2 Hyderabad-500016, IN
1 Atomic Minerals Division, Department of Atomic Energy, Baroda-390 001, IN
2 Hyderabad-500016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 51, No 2 (1998), Pagination: 201-206Abstract
The granites around Zoz represent a differentiated, calc-alkaline, subaluminous, A-type granite with higher uranium content. The A-type affinity points to the possibility of encountering Sn, Mo, Bi, Nb, Ta and F mineralisation in the area. The low Th/U ratio also favours vein type U-deposits within granites or in adjacent metasediments.Keywords
Geochemistry, Godhra Granite, Zoz, Champaner, Gujarat.
- Occurrence of Kyanite in the Nearshore Sediments of North Coastal Andhra Pradesh and its Implications
Abstract Views :181 |
PDF Views:120
Authors
S. C. Patel
1,
A. V. Subrahmanyam
2,
T. Desapathi
2,
M. Nageswara Rao
2,
Y. V. Rathaiah
2,
V. Anil Kumar
2,
D. Rajasekhara Reddy
3,
Malathi Vemuri
3
Affiliations
1 Department of Earth Sciences, IIT, Powai, Mumbai - 400 076, IN
2 Atomic Mineral Directorate for Exploration and Research, Begumpet, Hyderabad - 560 016, IN
3 Department of Geology, Andhra University, Visakhapatnam - 530 003, IN
1 Department of Earth Sciences, IIT, Powai, Mumbai - 400 076, IN
2 Atomic Mineral Directorate for Exploration and Research, Begumpet, Hyderabad - 560 016, IN
3 Department of Geology, Andhra University, Visakhapatnam - 530 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 61, No 3 (2003), Pagination: 370-371Abstract
No Abstract.Full Text
- Petrography and Geochemistry of Uranium Mineralised Precambrian Granitic-Pegmatitic Rocks of Mawlait, West Khasi Hills District, Meghalaya
Abstract Views :209 |
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Authors
Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Jamshedpur - 831 002, IN
2 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Nagpur - 440 001, IN
3 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Hyderabad - 500 016, IN
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Jamshedpur - 831 002, IN
2 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Nagpur - 440 001, IN
3 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Hyderabad - 500 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 74, No 5 (2009), Pagination: 639-645Abstract
During radiometric investigation at Mawlait, significant uranium mineralisation (0.024-0.22%U3O8) was located mainly within the small pegmatite (garnet bearing quartzofeldspathic rock), which are locally segregated within migmatite at Umiang River section. Pink granite and granite gneisses are the dominant lithounits of the study area showing fertile character and spotty radioactivity at several places. Radioactivity in these rocks is mainly contributed by discrete uraninite grains along with some zircon and xenotime. Granites are peraluminous, low-Ca in nature and their geochemical signatures suggest derivation from a felsic source. Discriminant diagrams using Rb, Nb and Y indicate 'within plate' to 'volcanic arc' nature of the rock. The uraniferous pegmatitic veins within migmatite appear to have formed due to localised metamorphic segregation during late stage of anatexis. Petromineralogical and geochemical studies suggest that the uranium mineralisation in granitic-pegmatitic rocks of the area is mainly syn-magmatic type.Keywords
Pegmatite Veins, Granites, Uranium Mineralisation, Mawlait, Meghalaya.References
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