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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... Shear Zone which is known for its economic importance . This shear zone has a roughly E - W trend and marks the southern contact of Chhotanagpur Granite Gneiss Complex with Singhbhum Group of rocks lying south of it . D. K. Chandra ...
... Shear Zone which is known for its economic importance . This shear zone has a roughly E - W trend and marks the southern contact of Chhotanagpur Granite Gneiss Complex with Singhbhum Group of rocks lying south of it . D. K. Chandra ...
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... shear zones etc. Main lithounits known from ground data are ( 1 ) Siliceous tuff ( with quartzite bands ) , ( 2 ) Phyllitic tuff , ( 3 ) Meta basic rock , ( 4 ) Granitic rock and also sheared silicified zones . Gra- nitic rocks in ...
... shear zones etc. Main lithounits known from ground data are ( 1 ) Siliceous tuff ( with quartzite bands ) , ( 2 ) Phyllitic tuff , ( 3 ) Meta basic rock , ( 4 ) Granitic rock and also sheared silicified zones . Gra- nitic rocks in ...
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... Shear Zone ( also referred to as Jhalda Shear Zone ) falling in parts of Purulia district of West Bengal , has lead to identi- fication of rich concentration of REE in association with pegmatite . As the Shear zone continues west- ward ...
... Shear Zone ( also referred to as Jhalda Shear Zone ) falling in parts of Purulia district of West Bengal , has lead to identi- fication of rich concentration of REE in association with pegmatite . As the Shear zone continues west- ward ...
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