Records of the Geological Survey of India, Volume 130, Part 3Government of India, 1995 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 146
... biotite - chlorite schist , quartz - chlorite - biotite schist , meta - ultramafites , gabbro , quartzite , metabasalt ( massive , schistose and amyg- daloidal ) and mylonitised quartz - schist . The Chaibasa For- mation consists of ...
... biotite - chlorite schist , quartz - chlorite - biotite schist , meta - ultramafites , gabbro , quartzite , metabasalt ( massive , schistose and amyg- daloidal ) and mylonitised quartz - schist . The Chaibasa For- mation consists of ...
Page 196
... biotite . Biotite shows ubiquitous distribution throughout the rock . Locally it is differentiated to more leucocratic and biotite rich melanocratic parts . Frequently it exhibits migmatites with neosomes of quartz rich pegmatoid rocks ...
... biotite . Biotite shows ubiquitous distribution throughout the rock . Locally it is differentiated to more leucocratic and biotite rich melanocratic parts . Frequently it exhibits migmatites with neosomes of quartz rich pegmatoid rocks ...
Page 204
... biotite granite gneiss and migmatite with enclaves of biotite schist and pink granite gneiss with amphibolite lenses . The quartzite occa- sionally shows colour banding . It is fine grained with ir- regular grain boundaries and is ...
... biotite granite gneiss and migmatite with enclaves of biotite schist and pink granite gneiss with amphibolite lenses . The quartzite occa- sionally shows colour banding . It is fine grained with ir- regular grain boundaries and is ...
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Common terms and phrases
amphibolite anomaly aquifers bands Bankura BARGARH DISTRICT basemetal basin bed rock belt Bihar biotite block borehole Chhotanagpur chlorite clay coastal CONSTRUCTION STAGE GEOTECHNICAL cratonic Dalma depth Dhanjori Dimension Stone Director district drilling earth dam east Engineering Geology environmental fault feldspar field season fold foliation Formation Ganga Gangpur geochemical Geoenvironmental GEOLOGICAL MAP GEOLOGICAL SURVEY Geophysical GEOTECHNICAL INVESTIGATION gneiss gold values Gondwana grained granite granite gneiss granitoids grey Group of rocks INDEX indicate irrigation Keonjhar land laterite lineament lithounits located mica schist minerals nala occur Orissa ORISSA Code OVERVIEW pegmatite phyllite potential present Project Engineering Geology Proterozoic Purulia quartz quartz veins quartzite Quaternary river rock types sand sandstone scale schist sector sequence shale shear zone Sikkim Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment samples sulphide Sundargarh surface SURVEY OF INDIA terrain thickness toposheet trending ultramafic upto volcanics West Bengal