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Anand, A.
- Incidence of Gold Associated with Copper Mineralization in Garhwal Lesser Himalaya, Rudraprayag District, Uttarakhand, India
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PDF Views:80
Authors
Affiliations
1 Geological Survey of India, Lucknow 226 024, IN
2 Geological Survey of India, Dehradun 248 001, IN
3 Geological Survey of India, Chennai 600 032, IN
4 Geological Survey of India, Jaipur 302 004, IN
1 Geological Survey of India, Lucknow 226 024, IN
2 Geological Survey of India, Dehradun 248 001, IN
3 Geological Survey of India, Chennai 600 032, IN
4 Geological Survey of India, Jaipur 302 004, IN
Source
Current Science, Vol 112, No 06 (2017), Pagination: 1115-1117Abstract
Base-metal mineralization occurs widely in the rocks of the Garhwal Group of Proterozoic Lesser Himalayan Sequence, viz. Dhanpur, Pokhri and Mohankhal prospects, but gold (Au) associated with such mineralization is rarely recorded from Garhwal Himalaya. Here we report significant incidences of gold associated with sulphide mineralization in dolomitehosted quartz-carbonate veins of Pithoragarh (=Lameri) Formation from Lameri-Koteshwar area, in parts of Rudraprayag district, Uttarakhand, India.Full Text
References
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- Differential Bleaching Patterns in Corals of Palk Bay and the Gulf of Mannar
Abstract Views :212 |
PDF Views:75
Authors
P. Krishnan
1,
R. Purvaja
1,
C. R. Sreeraj
1,
R. Raghuraman
1,
R. S. Robin
1,
K. R. Abhilash
1,
R. S. Mahendra
2,
A. Anand
3,
M. Gopi
1,
P. C. Mohanty
2,
K. Venkataraman
1,
R. Ramesh
1
Affiliations
1 National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Anna University Campus, Chennai 600 025, IN
2 Indian National Centre for Ocean Information Services, Hyderabad 500 090, IN
3 Regional Remote Sensing Centre, Indian Space Research Organisation, Nagpur 440 010, IN
1 National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Anna University Campus, Chennai 600 025, IN
2 Indian National Centre for Ocean Information Services, Hyderabad 500 090, IN
3 Regional Remote Sensing Centre, Indian Space Research Organisation, Nagpur 440 010, IN
Source
Current Science, Vol 114, No 03 (2018), Pagination: 679-685Abstract
The status of reefs in Palk Bay and the Gulf of Mannar was studied during April–May 2016 following a bleach alert, as the sea surface temperature recorded a sudden increase from 30.5°C to 34.0°C in Gulf of Mannar. About 71.48% ± 8.9% of the corals in Palk Bay and 46.04% ± 3.78% in Thoothukkudi group of Islands in Gulf of Mannar were found bleached, showing a clearly decreasing trend from north to south, which could be attributed to the corresponding pattern in intensity of SST recorded in the study sites. Observations of bleaching patterns among different life-forms showed 68% of the bleached corals were massive forms. It was observed that 22 out of the 26 massive forms were bleached, while the Acropora corymbose (ACC), digitate (ACD) and encrusting coral (CE) forms were not bleached in any of the study sites in Palk Bay and Gulf of Mannar. The study suggests that the ACC, ACD and CE forms have adapted to thermal stress, subsequent to the earlier mass bleaching events. The study highlights the need for understanding the molecular mechanism of the association between corals and the symbiotic algae, for further understanding on coral bleaching in Indian waters.Keywords
Adaptive Coral Bleaching, Gulf of Mannar, Palk Bay.Full Text
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