Records of the Geological Survey of India, Volume 129, Parts 2-3The Survey, 1998 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 86
... intrusives Age Tertiary Thimphu Group Sure Formation Pre - cambrian -------- Naspe Formation Pre - cambrian The metasedimentary lithopackage of the Naspe Formation includes garnet - mica schist , mica- ceous quartzite ( haematitic at ...
... intrusives Age Tertiary Thimphu Group Sure Formation Pre - cambrian -------- Naspe Formation Pre - cambrian The metasedimentary lithopackage of the Naspe Formation includes garnet - mica schist , mica- ceous quartzite ( haematitic at ...
Page 102
... intrusive . These are also in- truded by several dolerite dykes . A few small lin- ear patches of actinolite rock also occur as younger intrusives . Meta - sedimentaries represented by quartzite ( Similipal ) and very small patches of ...
... intrusive . These are also in- truded by several dolerite dykes . A few small lin- ear patches of actinolite rock also occur as younger intrusives . Meta - sedimentaries represented by quartzite ( Similipal ) and very small patches of ...
Page 103
... intrusives . The ultramafic / mafic rocks have wide compositional range : peridotite , pyroxenite , gab- bro - anorthosite , diorite , serpentinite , etc. The acidic intrusives form part of granite - migmatite ensem- ble belonging to ...
... intrusives . The ultramafic / mafic rocks have wide compositional range : peridotite , pyroxenite , gab- bro - anorthosite , diorite , serpentinite , etc. The acidic intrusives form part of granite - migmatite ensem- ble belonging to ...
Contents
Stratigraphy Division | 11 |
Central Petrological Laboratories | 26 |
Geodata and Database Division | 43 |
Copyright | |
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acid volcanics aeromagnetic amphibolite anomaly bands Barakar Barakar Formation Barren Measure basemetal basic basin belt Bhutan Bihar biotite block boreholes charnockite Chhotanagpur clay coal seams Coalfield coarse Code core covered depth district Division drilling dykes east eastern faults field season foliation geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION Ghosh gneiss gneissic gold Gondwana grade grained granite granite gneiss grey ground evaluation heavy minerals India indicated intersected intrusives Kamthi laterite limestone lineament located magnetic mica schist migmatite mineralisation nala NW-SE occur Orissa OVERVIEW pegmatite phyllite plagioclase Pradesh programme Project Proterozoic Purulia Purulia district quartz quartz veins quartzite Raniganj REGIONAL EXPLORATION river samples sand sandstone scale schist seam zones sector sediments sequence shale shear zone Sikkim Singhbhum southern sq km sq.km STAGE GEOTECHNICAL INVESTIGATION strike length structure sulphide surface survey Talchir terrain thickness tion Toposheet trending ultramafic upto varies West Bengal