Records of the Geological Survey of India, Volume 142, Part 2The Survey, 2009 - Earthquakes Vols. 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 18
... pegmatites . Mineral chemistry of the constituent phases of the pegmatite rocks is as follows . Alkali- feldspars are Oг „ Ab , to Ab „ .Or ,. Plagioclase feldspar is mainly oligoclase , muscovite characterized by high F content ( 1.11 ...
... pegmatites . Mineral chemistry of the constituent phases of the pegmatite rocks is as follows . Alkali- feldspars are Oг „ Ab , to Ab „ .Or ,. Plagioclase feldspar is mainly oligoclase , muscovite characterized by high F content ( 1.11 ...
Page 77
... pegmatites and basic bodies . Ground evaluation has shown that most of the radiometric anomalies correspond to bosses and stocks of either pegmatite bodies or pink coloured porphyritic granites . XRD studies of select samples of ...
... pegmatites and basic bodies . Ground evaluation has shown that most of the radiometric anomalies correspond to bosses and stocks of either pegmatite bodies or pink coloured porphyritic granites . XRD studies of select samples of ...
Page 80
... pegmatite ( RM - REE bearing ) using radiometric peaks were taken up in parts of Bihar Mica Belt bounded by Lat : 24 ... pegmatite .The studies revealed that the radiometric peaks correspond to bosses and stocks of either Icm 500m wwww N ...
... pegmatite ( RM - REE bearing ) using radiometric peaks were taken up in parts of Bihar Mica Belt bounded by Lat : 24 ... pegmatite .The studies revealed that the radiometric peaks correspond to bosses and stocks of either Icm 500m wwww N ...
Contents
प्राक्कथन | 1 |
PALAEONTOLOGY DIVISIONI | 20 |
GEODATA AND DATABASE DIVISION | 31 |
Copyright | |
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alteration zones AMSE Wing Andhra Pradesh anomaly aquifer arsenic Barakar Barakar coal seams Barakar Formation Barren Measures Basin bathymetric Birbhum Block boreholes boreholes located carried Chhattisgarh chondrules clayey silt Coal Wing coarse coast Code collected cruise delineate deposits depth range District drilling east eastern exploration for coal fault field season Geological map geophysical logging geotechnical gneiss Gondwana grained granite gneiss granitoids gravity cores grey ground evaluation groundwater Himalaya intersected investigation Jharkhand Kerala lagoon lakes lignite lineaments Madhya Pradesh mineralisation NE-SW NW-SE Orissa pegmatite presence quartz quartzite radiometric Rajasthan Rajmahal Raniganj regional Barakar coal Regional exploration remote sensing rocks sand sandstone scale schist seabed seam zones Sector sediments seismic shallow shear sq km stream sediment studies sulphide survey Talcher Talcher Coalfield Tamil Nadu Territorial Waters Toposheet transects trending VALLEY COALFIELD varies water depths water samples West Bengal के तथा में