Records of the Geological Survey of India, Volume 122, Parts 2-4Geological Survey of India, 1987 - 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 18
... 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 32
... 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 |
Geological Survey of India | 4 |
AIRBORNE MINERAL SURVEY AND EXPLORATION WING 80104 | 80 |
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amphibolite AMSE Wing analysis Andaman anomalies assemblage bands Barakar Barakar Formation Barren Measures basin belt Bihar biotite block boreholes Calcutta clay coal seams Coal Wing COALFIELD Construction stage geotechnical cores correlation deposits depth district Division-II drilling dykes Eastern Engineering Geology evaluation exploration fault Feasibility stage folds geochemical geological mapping Geology Division geophysical geotechnical investigation Ghosh gneiss Gondwana grained granite granite gneiss grey Group heavy minerals horizon indicated Irrigation LANDSAT limestone lineaments located magnetic metamorphic mica migmatites mineralisation NW-SE occur Orissa pegmatite phyllite PRADESH quartz quartzite Raniganj Raniganj Formation regional river sand sandstone scale schist seam zones sector sediments shale shear zone Shillong sillimanite Singhbhum slope Special Investigation spillway sq km stage geotechnical investigation Stratigraphy strike length structure surface Survey of India thickness toposheet traverses trending Upper upto valley varies veins volcanics West Bengal