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Gupta, A. K.
- Earthquake Swarm Activities after Rains in Peninsular India and a Case Study from Jamnagar
Abstract Views :242 |
PDF Views:2
Authors
Sumer Chopra
1,
K. Madhusudhan Rao
1,
B. Sairam
1,
Santosh Kumar
1,
A. K. Gupta
1,
Hardik Patel
1,
M. S. Gadhavi
1,
B. K. Rastogi
1
Affiliations
1 Institute of Seismological Research, Sector-18, Gandhinagar - 382 018, IN
1 Institute of Seismological Research, Sector-18, Gandhinagar - 382 018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 72, No 2 (2008), Pagination: 245-252Abstract
About 200 shocks were felt and over 50 of M-2 to 4 were located south of Jamnagar in 2006 and same number was felt/located again in 2007 with blast like subterranean sounds soon after heavy rains. Most of the shocks have shallow focal depth of less than 10 km. Some of the tremors have caused cracks in a few houses. During September-October 2006 tremors were confined withm 5 km of Khankotda village which is about 30 km SE of Jamnagar. During August-September 2007 the activity had spread northward up to Jamnagar. Some shocks have occurred about 20-25 km west of this trend faults/lineaments/dykes in the area are studied to identify the causative feature for the tremors. The rainfall data of the district and water level data of nearby observation wells are studied to see any possible relationship with earthquake activity. Data of about hundred cases of swarm type of earthquake sequences in the peninsular India in last several decades are compiled to study their characteristics vis-a-vis monsoons.Keywords
Swarm-Type of Earthquakes, Subterranean Sounds, Saurashtra Seismicity.- Mining Activity and its Impact on the Environment:Study from Makrana Marble and Jodhpur Sandstone Mining Areas of Rajasthan
Abstract Views :415 |
PDF Views:2
Authors
Affiliations
1 Regional Remote Sensing Service Centre, Dept. of Space, CAZRI Campus, Jodhpur - 342 003, IN
2 Department of Mines and Geology, Govt. of Rajasthan, Jodhpur, IN
1 Regional Remote Sensing Service Centre, Dept. of Space, CAZRI Campus, Jodhpur - 342 003, IN
2 Department of Mines and Geology, Govt. of Rajasthan, Jodhpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 70, No 4 (2007), Pagination: 557-570Abstract
Remote sensing and GIS techniques have been found to be useful in mapping of mining areas, management of mineral resources and environmental impact analysis. These techniques help to monitor dynamic growth of mine areas and assess environmental impact caused by the mining activity. In the present study, multi-temporal satellite data have been used for mine area mapping and the environmental impact in Makrana marble and Jodhpur sandstone mines. Based on the satellite data analysis for the year 2003, the mining area of Makrana marble and Jodhpur sandstone has been estimated as 3.13 sq. km and 17.35 sq. km respectively. Mine mapping shows 495 smaller (<10000 sq. m) mines in Makrana and only 22 mines of same dimension in Jodhpur area. Department of Mines and Geology, Rajasthan allotted 817 lease areas (2.51 sq. km) in Makrana and 11948 lease areas (21.5 sq. km) in Jodhpur mining area. This indicates a vertical growth of mining activity for Makrana marble and lateral growth for Jodhpur sandstone. In the last 10-15 years, Jodhpur mining activity caused more damage on the natural drainage (destruction of 27.4 km length) in comparison to the damage on drainage (only 1.66 km length) in Makrana. Sandstone mining also paralyzed 50% of the Main Keru Canal in Jodhpur area. The present analysis indicates that unscientific and non-Mechanized methods in smaller mines pose threat to the environment, life and property. Hence, it is suggested that smaller and clustered mines need to be amalgamated through Co-Operative society for proper extraction of precious mineral resources and better environmental management.Keywords
Mine Mapping, Mineral Resources, Environmental Impact Assessment (EIA), Satellite Data, Makrana Marble, Jodhpur Sandstone, Rajasthan.- Sub-Surface Water Oozing at Kalayat Village, Jind District, Haryana in December, 2005: Possible Connection with Saraswati Palaeochannel
Abstract Views :220 |
PDF Views:2
Authors
Affiliations
1 Regional Remote Sensing Service Centre, Dept. of Space, CAZRI Campus, Jodhpur - 342 003, IN
1 Regional Remote Sensing Service Centre, Dept. of Space, CAZRI Campus, Jodhpur - 342 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 6 (2006), Pagination: 946-948Abstract
Sudden spurt of sub-Surface water oozing at Kalayat village in Jind district of Haryana has been reported in December, 2005. Oozing water has high temperature, high fluoride content but low in TDS, nitrate and total hardness indicative of palaeochannel source. This incidence coupled with the occurrence of a major earthquake in the Hindukush region on 13th December, 2005 indicate source of the oozing water at Kalayat could possibly be from a palaeochannel of lost Saraswati.Keywords
Groundwater, Palaeochannel, Kalayat, Saraswati, Haryana.- Saraswati Nadi in Haryana and its Linkage with the Vedic Saraswati River – Integrated Study Based on Satellite Images and Ground Based Information
Abstract Views :185 |
PDF Views:0
Authors
Affiliations
1 Regional Remote Sensing Service Centre, Dept. of Space, CAZRI Campus, Jodhpur - 342 003, IN
1 Regional Remote Sensing Service Centre, Dept. of Space, CAZRI Campus, Jodhpur - 342 003, IN