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Sitaram, M. V. D.
- Some Recent Earthquakes in Peninsular India
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Authors
Affiliations
1 National Geophysical Research Institute, Hyderabad, 500007, IN
1 National Geophysical Research Institute, Hyderabad, 500007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 22, No 6 (1981), Pagination: 292-298Abstract
The Peninsular Shield of India, generally considered to be aseismic, has recently experienced significant activity al Koyna (1967), Bhadrachalam (1969) and Broach (1970). Besides, over two hundred tremors, with magnitudes ranging from 2 to 5, have also been identified mainly in Andhra Pradesh, Karnataka and Maharashtra during 1967 to 1977, and are catalogued. Low magnitude activity (M < 4) is observed to be prevalent in the Peninsular Shield.- Geothermal Model of the North-Eastern Region of India: Its Possibilities and Limitations
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Authors
Affiliations
1 Geophys. Inst., Czechosl. Acad. Sci, 141-31 Praha, Czechoslovakia, GB
2 Geoscience Div., Regional Research Laboratory, Jorhat, IN
1 Geophys. Inst., Czechosl. Acad. Sci, 141-31 Praha, Czechoslovakia, GB
2 Geoscience Div., Regional Research Laboratory, Jorhat, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 36, No 1 (1990), Pagination: 5-11Abstract
The empirical relationship between observed Pn (Sub-Moho) seismic velocities and the surface heat flow (including also the assessed crust-upper mantle temperatures) was used to improve the understanding of the regional geothermal activity of the North-Eastern Region of India. Vertical seismic velocity profile was further converted into radiogenic heat production and the knowledge of the crustal heat sources helped in both, to estimate deep temperature distribution within the crust and to evaluate the Moho heat flow. The most probable existing temperature at the crust-upper mantle boundary is between 800 and 900°C and the flow of heat from below the crust attains about 50% of observed surface heat flow, i.e, about 30mW. m-2.Keywords
North-East Region Heat Flow, Geothermal Model Seismology, Meghalaya, Assam, Nagaland, Arunachal Pradesh.- Study on Crustal Structure Beneath Arunachal Himalaya and Assam
Abstract Views :187 |
PDF Views:2
Authors
Affiliations
1 Geoscience Division, Regional Research Laboratory, Jorhat - 785006, Assam, IN
2 Dept. of Applied Geology, Dibrugarh University, Dibrugarh - 786004, Assam, IN
1 Geoscience Division, Regional Research Laboratory, Jorhat - 785006, Assam, IN
2 Dept. of Applied Geology, Dibrugarh University, Dibrugarh - 786004, Assam, IN