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 164
... heavy mineral content varies from 1 % to 4 % by weight . The heavy minerals are concentrated more in -60 to + 120 and -120 to + 230 ASTM mesh fractions . In the second sector , the seabed is mainly made up of fine to medium sand with ...
... heavy mineral content varies from 1 % to 4 % by weight . The heavy minerals are concentrated more in -60 to + 120 and -120 to + 230 ASTM mesh fractions . In the second sector , the seabed is mainly made up of fine to medium sand with ...
Page 169
Geological Survey of India. EXPLORATION FOR HEAVY MINERAL PLACERS OF IRAVIPURAM - EDAVAI AND KADINAMKULAM ... minerals . , though the percentage is very low . Other heavy minerals present in the sample include epidote / zoisite ...
Geological Survey of India. EXPLORATION FOR HEAVY MINERAL PLACERS OF IRAVIPURAM - EDAVAI AND KADINAMKULAM ... minerals . , though the percentage is very low . Other heavy minerals present in the sample include epidote / zoisite ...
Page 170
... heavy minerals . A ferruginous zone , constituted of highly assorted sands containing abundant gravels of quartz and ... heavy mineral content in the analysed samples ( 10 in number ) ranges be- tween 1.2 % and 15.38 % . Analysis of ...
... heavy minerals . A ferruginous zone , constituted of highly assorted sands containing abundant gravels of quartz and ... heavy mineral content in the analysed samples ( 10 in number ) ranges be- tween 1.2 % and 15.38 % . Analysis of ...
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