RESULTS OF GRAVITY SURVEY OVER RANIGANJ COALFIELD, INDIA*
作者:
R. K. VERMA,
R. MAJUMDAR,
DEBABRATA GHOSH,
ASHISH GHOSH,
N. C. GUPTA,
期刊:
Geophysical Prospecting
(WILEY Available online 1976)
卷期:
Volume 24,
issue 1
页码: 19-30
ISSN:0016-8025
年代: 1976
DOI:10.1111/j.1365-2478.1976.tb00382.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
AbstractResults of a gravity survey conducted over Raniganj coalfield, one of the Gondwana basins of Damodar Valley in north‐eastern part of India, are presented. The gravity field was separated into regional and residual components. The residual Bouguer anomaly map shows that the coalfield is characterized by a gravity low of about—32 mGal associated with Gondwana sediments. The deepest part of basin is found to be located near Asansole (23° 40’N, 86° 55’E), where the maximum thickness of sediments is estimated to be about 1.3 miles (2.08 km). The faults along the northern as well as the southern boundaries are found to be normal. The Gondwana sediments appear to continue eastward beneath alluvium and laterite of Bengal basin as far as
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