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 189
... foliation as dis- continuous bodies , pockets , lenses and disseminations along foliation , fractures and minor fold closures in host rocks , viz . khondalite and quartzite ( Plate 64 ) . Out of the nine boreholes drilled in FS 94-95 ...
... foliation as dis- continuous bodies , pockets , lenses and disseminations along foliation , fractures and minor fold closures in host rocks , viz . khondalite and quartzite ( Plate 64 ) . Out of the nine boreholes drilled in FS 94-95 ...
Page 200
... foliation ( S ) is well developed which trend N toNNW with moderate to steep dip due east . A shear zone , parallel to the regional foliation , ( i.e. , NW - SE ) has been developed in the area around Idelkocha , Maredihi and Jhabukocha ...
... foliation ( S ) is well developed which trend N toNNW with moderate to steep dip due east . A shear zone , parallel to the regional foliation , ( i.e. , NW - SE ) has been developed in the area around Idelkocha , Maredihi and Jhabukocha ...
Page 5
... foliation nor any mineral lineation . The foliation of the metasediments of Shillong Group , the host of mafic intrusion show decrease in amount of dip near the periphery of the mafic intrusions , which in turn suggest the forceful ...
... foliation nor any mineral lineation . The foliation of the metasediments of Shillong Group , the host of mafic intrusion show decrease in amount of dip near the periphery of the mafic intrusions , which in turn suggest the forceful ...
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