Records of the Geological Survey of India, Volume 122, Parts 2-4Geological Survey of India, 1989 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 50
... quartz veins occurring away from the mineralised zone are found to be devoid of fluid inclusions . On the other hand , quartz veins in the mineralised zone show well developed mono- , bi- and polyphase fluid inclusions . Freezing ...
... quartz veins occurring away from the mineralised zone are found to be devoid of fluid inclusions . On the other hand , quartz veins in the mineralised zone show well developed mono- , bi- and polyphase fluid inclusions . Freezing ...
Page 32
... quartz schist , quartz mica schist and amphibolite / hornblende schist , whereas andalusite bearing mica schist is the dominant lithology of the upper unit . The metasedi- mentary sequence has been intruded by granite , pegma- toid ...
... quartz schist , quartz mica schist and amphibolite / hornblende schist , whereas andalusite bearing mica schist is the dominant lithology of the upper unit . The metasedi- mentary sequence has been intruded by granite , pegma- toid ...
Page 46
... quartz vein , within quatz mica gneiss . Copper min- eralisation was noticed in the quartz vein associated with the quartz biotite geniss in the small Adit on the old Dikchu - Penlang Road . Further northwards of the Adit about 300m ...
... quartz vein , within quatz mica gneiss . Copper min- eralisation was noticed in the quartz vein associated with the quartz biotite geniss in the small Adit on the old Dikchu - Penlang Road . Further northwards of the Adit about 300m ...
Contents
CENTRAL HEADQUARTERS 179 | 1 |
AIRBORNE MINERAL SURVEY AND EXPLORATION WING 80104 | 80 |
COAL WING 105 174 | 105 |
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amphibolite analysed anomaly anorthosite assemblage bands Barakar Barakar Formation basin bed rock belt Bhuban Bihar BIHAR Code biotite block boreholes Calcutta carbonatite carried clay coal seams Coal Wing COALFIELD Construction stage geotechnical cores covered dam axis deposits depth Disang district drilling dykes Eastern Engineering Geology evaluation fault Feasibility stage field season folds geochemical geological mapping Geology Division-II Ops geophysical geotechnical investigation gneiss Gondwana grade grained granite granite gneiss grey Group grouting horizon indicate irrigation limestone lineaments located magnetic metamorphic mica migmatites mineral mineralisation nala occur Orissa pegmatite phyllite PPB PPB PRADESH quartz quartzite Quaternary Raniganj Reservoir Scheme river rock types samples sand sandstone scale schist sediments shale shear zone Shillong siltstone Singhbhum slope Special Investigation spillway sq km stage geotechnical investigation structure surface Survey of India Talchir thickness toposheet traverses trending Upper upto valley varies veins volcanics West Bengal