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 66
... sequence of mafic - ultramafic volcanics and quartzites and surrounded by a low grade psammopelitic assemblage . The ... sequence is intruded by the Bonai Granite and enclaves of it occur within the granite . The two lithoassemblages in ...
... sequence of mafic - ultramafic volcanics and quartzites and surrounded by a low grade psammopelitic assemblage . The ... sequence is intruded by the Bonai Granite and enclaves of it occur within the granite . The two lithoassemblages in ...
Page 74
... sequences of volcano - sedimentary litho - package . One sequence is intruded by the Bonai Granite and the other one lies above the granite . The two rock sequences come in contact for a limited part in the northeastern extremity where ...
... sequences of volcano - sedimentary litho - package . One sequence is intruded by the Bonai Granite and the other one lies above the granite . The two rock sequences come in contact for a limited part in the northeastern extremity where ...
Page 166
... sequence also shows iron coatings on sand of sandy sequence . The Ganauli Sequence is a homogeneous , cherry red - brown coloured pebble and boulder bed sequence capped by silty ( very coarse ) sand . At Bararighat Diara , Bhagalpur ...
... sequence also shows iron coatings on sand of sandy sequence . The Ganauli Sequence is a homogeneous , cherry red - brown coloured pebble and boulder bed sequence capped by silty ( very coarse ) sand . At Bararighat Diara , Bhagalpur ...
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