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 55
... Formations ( 390 m ) , Lachi Formation ( 2600 m ) and Chholahmo Formations ( 740 m ) . The whole sequence is thrusted over Central Crystalline Gneissic Complex ( CCGC ) which is generally migmatitic in nature ( Plate - 20 ) . Everest ...
... Formations ( 390 m ) , Lachi Formation ( 2600 m ) and Chholahmo Formations ( 740 m ) . The whole sequence is thrusted over Central Crystalline Gneissic Complex ( CCGC ) which is generally migmatitic in nature ( Plate - 20 ) . Everest ...
Page 167
... Formation Kamla Surface Diara Surface / Formation Formation H о L Vaishali Surface / Formation ; Bettia Terrace OU Jainagar Surface / Kosi - Mahananda Formation Surface / Formation Mirganj Surface / Not Exposed E Formation ; Mainatanr ...
... Formation Kamla Surface Diara Surface / Formation Formation H о L Vaishali Surface / Formation ; Bettia Terrace OU Jainagar Surface / Kosi - Mahananda Formation Surface / Formation Mirganj Surface / Not Exposed E Formation ; Mainatanr ...
Page 77
... Formation is gradually overlain by the Langpar Formation of fine grained sandstone / siltstone , fine to medium grained hard compact , calc areous siltstone and yellowish col- oured fine grained siltstone . This formation is ...
... Formation is gradually overlain by the Langpar Formation of fine grained sandstone / siltstone , fine to medium grained hard compact , calc areous siltstone and yellowish col- oured fine grained siltstone . This formation is ...
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