Records of the Geological Survey of India, Volume 129, Parts 3-4Government of India, 1994 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 15
... associated with quartz veins and the associated sulphides are pyrite , chal- copyrite and pyrrhotite . Vein type of mineralisation in the chlorite schist ( epidiorite ) and chlorite ± sericite ± quartz schist have indicated higher ...
... associated with quartz veins and the associated sulphides are pyrite , chal- copyrite and pyrrhotite . Vein type of mineralisation in the chlorite schist ( epidiorite ) and chlorite ± sericite ± quartz schist have indicated higher ...
Page 124
... associated carbon- aceous shales of the Raniganj Formation at 63m depth , is taken as the datum or Permian , above which a layer of 3m sandstone marks the end of Raniganj Forma- tion as observed in B. H. No. RBM - 1 , ( Plate 42B ) ...
... associated carbon- aceous shales of the Raniganj Formation at 63m depth , is taken as the datum or Permian , above which a layer of 3m sandstone marks the end of Raniganj Forma- tion as observed in B. H. No. RBM - 1 , ( Plate 42B ) ...
Page 146
... associated with Dalma basic and ultrabasic volcanics ( Rudiya and its western extension axis , Taramba- Hurungda - Lapaibera - Kadlakocha axis , 73 F / 9 & F / 13 ) and metasedimentaries and associated volcaniclastic intercalations of ...
... associated with Dalma basic and ultrabasic volcanics ( Rudiya and its western extension axis , Taramba- Hurungda - Lapaibera - Kadlakocha axis , 73 F / 9 & F / 13 ) and metasedimentaries and associated volcaniclastic intercalations of ...
Contents
WEST BENGAL SIKKIM A N ISLANDS | 1 |
Report of investigation for rare metal mineralisation within pegmatite | 7 |
Gold | 14 |
Copyright | |
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acid volcanics amphibolite Andaman anomaly Arunachal Pradesh Assam bands basemetal basin bed rock belt Bihar biotite block boreholes Chhotanagpur clay Code colour comprising conglomerate covered depth Division drilling dykes east eastern Engineering Geology erosion exploration exposed fault feldspar field season fold foliation Formation geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION gneiss gneissic gold Gondwana grade granite granite gneiss granitoids grey Group of rocks GSI Rec Hills district identified intrusives Karbi Anglong laterite limestone lineament lithological located medium grained Meghalaya mica schist migmatites mineralisation minerals nala occurs Orissa OVERVIEW pegmatite phyllite plagioclase Proterozoic Purulia district quartz quartz veins quartzite Quaternary Region river sand sandstone scale schist sector sequence shale Shillong Shillong Group Sikkim siltstone Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment samples structure sulphide Surface SURVEY OF INDIA terrain thick Toposheet trending ultramafic upto West Bengal western