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 111
... units could be made based on tonal , textural and geomorphological characters . Unit 1 : Metasedimentaries show distinct linear ridges al- ternating with valleys . Dip facets sometimes can be recognised . The quartzites show a lighter ...
... units could be made based on tonal , textural and geomorphological characters . Unit 1 : Metasedimentaries show distinct linear ridges al- ternating with valleys . Dip facets sometimes can be recognised . The quartzites show a lighter ...
Page 73
... units A , B & C , as follows : Unit A , forms the dominant lithological assemblage and covers , central part of the area of study . It is marked by high relief with deep gorges and steep slopes . The general altitude of the unit ranges ...
... units A , B & C , as follows : Unit A , forms the dominant lithological assemblage and covers , central part of the area of study . It is marked by high relief with deep gorges and steep slopes . The general altitude of the unit ranges ...
Page 74
... unit 2A . The unit 2C is marked by smooth hillocks and low mounds , with common gully erosion . It shows white to light gray tone with fine texture . This unit is interpreted as shale with subordi- nate sandstone . The two lithovariants of ...
... unit 2A . The unit 2C is marked by smooth hillocks and low mounds , with common gully erosion . It shows white to light gray tone with fine texture . This unit is interpreted as shale with subordi- nate sandstone . The two lithovariants 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