Records of the Geological Survey of India, Volume 128, Part 3Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page iii
The Chotanagpur Granite Gneiss Complex ( CGGC ) was taken up for integrated
study comprising large scale geological mapping and geochemical survey in
western sector ( parts of Bihar ) and eastern sector ( parts of West Bengal ) .
The Chotanagpur Granite Gneiss Complex ( CGGC ) was taken up for integrated
study comprising large scale geological mapping and geochemical survey in
western sector ( parts of Bihar ) and eastern sector ( parts of West Bengal ) .
Page iv
Preliminary search for diamond in Mahanadi basin has been taken up as
diamonds have been recovered from the gravels of Mahanadi Catachment .
There remained several gap areas in the Singhbhum Copper Belt which
demanded ...
Preliminary search for diamond in Mahanadi basin has been taken up as
diamonds have been recovered from the gravels of Mahanadi Catachment .
There remained several gap areas in the Singhbhum Copper Belt which
demanded ...
Page 87
AN OVERVIEW K . K . Roy , Director In the Petrology Division , E . R . four items
were taken up during the field season . The studies of acid volcanic rocks in
Orissa continued from the previous year . Study of alkaline rocks and
carbonatites in ...
AN OVERVIEW K . K . Roy , Director In the Petrology Division , E . R . four items
were taken up during the field season . The studies of acid volcanic rocks in
Orissa continued from the previous year . Study of alkaline rocks and
carbonatites in ...
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Contents
Coastal studies and Neotectonics | 5 |
Chhotonagpur Gneiss East | 12 |
Investigation for copper and associated mineralisation | 18 |
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Common terms and phrases
Andaman anomaly apatite associated bands base basemetal basic basin belt Bihar block body boreholes carried clay Code collected complex conglomerate construction continued covered deposits depth detailed Director district Division drilling east Eastern Engineering exploration exposed extension faults FIELD SEASON fold Formation GEOLOGICAL MAP geophysical geotechnical gneiss gold grade grained granite granite gneiss gravity Group INDEX indicate intersected intrusive Island land length lineaments located magnetic major mineralisation minerals nature occur Orissa OVERVIEW phyllite places Plate potential present Project proposed quartz quartz veins quartzite recorded regional REPORTS represented river road rocks samples sand scale schist sector sediments sequence sericite shear zone Singhbhum slope soil sq km stage strike structural suggested surface SURVEY SURVEY OF INDIA taken thick tion trending types values volcanics West Bengal western