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 12
... granite with the older medium grained biotite granite ( composite granite ) has been observed . High grade granulite facies rocks are found to occur as xenoliths within composite biotite granite gneiss near Dumdumi and Chharrah . Some ...
... granite with the older medium grained biotite granite ( composite granite ) has been observed . High grade granulite facies rocks are found to occur as xenoliths within composite biotite granite gneiss near Dumdumi and Chharrah . Some ...
Page 160
... GRANITE EXAMINED IN BIHAR SCALE 20 0. As a first step for locating potential areas , recon- naissance survey was ... granite ( dolerite ) samples from Kodarma area has exhibited a good polish . A brief account of the reconnaissance work ...
... GRANITE EXAMINED IN BIHAR SCALE 20 0. As a first step for locating potential areas , recon- naissance survey was ... granite ( dolerite ) samples from Kodarma area has exhibited a good polish . A brief account of the reconnaissance work ...
Page 22
... granite gneiss . II . Medium grained porphyritic granite . III . Coarse pink porphyritic granite ( Burapahar Granite ) . The pink medium grained equigranular granite gneiss stand at the top being of the grade of ' Paradise ' type of ...
... granite gneiss . II . Medium grained porphyritic granite . III . Coarse pink porphyritic granite ( Burapahar Granite ) . The pink medium grained equigranular granite gneiss stand at the top being of the grade of ' Paradise ' type 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