Records of the Geological Survey of India, Volume 76, Issue 16Government of India, 1948 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 40
... separated by a very thin sequence of sandstone and shale beds , again enhancing the difficulties of efficient extraction . A number of important dolerite dykes occur , but it is the ultra- basic , mica - peridotite intrusions ( dykes ...
... separated by a very thin sequence of sandstone and shale beds , again enhancing the difficulties of efficient extraction . A number of important dolerite dykes occur , but it is the ultra- basic , mica - peridotite intrusions ( dykes ...
Page 43
... separated by Barren Measures ; by far the most important seams occur in the lower ( Barakar ) stage . In the Barakars of the South Karanpura field , the following sequence1 has been recognised : - Top . Saunda ( 10 feet ) with three ...
... separated by Barren Measures ; by far the most important seams occur in the lower ( Barakar ) stage . In the Barakars of the South Karanpura field , the following sequence1 has been recognised : - Top . Saunda ( 10 feet ) with three ...
Page 44
... separated by about 12 to 35 feet of strata have been proved . Though relatively low in ash , the coal contains some 10 per cent . of moisture . Extraction commenced in 1923 . Rampur or Ib River field . — This field represents 44 [ VOL ...
... separated by about 12 to 35 feet of strata have been proved . Though relatively low in ash , the coal contains some 10 per cent . of moisture . Extraction commenced in 1923 . Rampur or Ib River field . — This field represents 44 [ VOL ...
Contents
sources of information | 1 |
COAL IN INDIAcontd | 6 |
Map of the Jammu coalfields Kashmir | 7 |
13 other sections not shown
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Common terms and phrases
20 feet analyses anthracitic Argada Assam Ballalpur Baluchistan Barakar measures beds Bihar bituminous coal caking carbonaceous cent Coal in India coal industry coal measures Coalfields coking coals colliery consumption Daltonganj Damodar river Damodar valley Damuda Dandot deposits Dishergarh dolerite east eastern Eocene faults feet in individual feet in thickness feet of coal feet of strata feet thick fuel Geol Geological Giridih Gondwana coals India Indian Coal intrusions Jharia field Kamthi Karanpura Kashmir Khel latter lignite limestones lower Eocene M. S. Krishnan Makarwal Mesozoic metallurgical Mikir hills million tons mines non-caking north-western northern outcrops output peridotite Permian production proved Punjab railway Raniganj Raniganj coal measures Raniganj field Raniganj measures Salt Range sandstones Sandstones and shales seams occur seams of coal sediments sequence shales southern square miles stage Talchir Tertiary Text-fig thin coal seams thin seams Upper Assam volatile workable coal workable seams workable thickness