Records of the Geological Survey of India, Volume 115, Parts 3-4The Survey, 1987 - 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 45
... separate mineralized zones were delineated occurring on either side of Ranga River near the 41 km post on the Kimin - Ziro road . The mineralized zones are ( i ) a carboniferous pyrite zone ; ( ii ) two separate zones of chalcopyrite ...
... separate mineralized zones were delineated occurring on either side of Ranga River near the 41 km post on the Kimin - Ziro road . The mineralized zones are ( i ) a carboniferous pyrite zone ; ( ii ) two separate zones of chalcopyrite ...
Page 51
... separate mineralised zones occurring on either side of the Ranga river , a brief summary of which is given in Table 1 . - below : - a ) The description of the individual zones is given Zone of ( cobaltiferous ) pyrite mineralisation ...
... separate mineralised zones occurring on either side of the Ranga river , a brief summary of which is given in Table 1 . - below : - a ) The description of the individual zones is given Zone of ( cobaltiferous ) pyrite mineralisation ...
Page 100
... separate Surma sea in the sub - crop region of Upper Assam is precluded since that would develop a much more extensive Surma deposition in the region . Conclusion To conclude , therefore , it may be emphasized that Kohima synclinorium ...
... separate Surma sea in the sub - crop region of Upper Assam is precluded since that would develop a much more extensive Surma deposition in the region . Conclusion To conclude , therefore , it may be emphasized that Kohima synclinorium ...
Contents
A NOTE ON THE EVOLUTION OF THE MINERAL | 17 |
Pant | 24 |
A R Nambiar | 43 |
Copyright | |
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aegirine alkaline rocks Arunachal Pradesh assemblage Barail Range bedded biotite borehole Brahmaputra camptonites carbonatite Chalcopyrite charnockite chlorite Coal cordierite deposits Disang dissected hills drainage dyke Evans feldspar feldspathic ijolite flood plain foliation fractured garnet Geol GEOLOGICAL SURVEY gneiss Golagar basin Golagar Nala grains GSI Rec 115 Hills district Himalaya ijolite immiscibility Indravati river inner belt Kohima Kohima synclinorium Kopili Koraput lamprophyres landforms magma magnetite Manipur Meghalaya metamorphic metapelites Mikir hills mineral mineralised zone muscovite Nagaland Nala Naogaon Naogaon Sandstone NE-SW occur Orissa orthoclasite phenocrysts Phyangla Plate point bar polymetallic porphyroblasts Potin Formation pyrite pyrrhotite quartz Ranga River Ranga Valley Rec 115 pts region ridge and valley samples San Nala sandstone schist shale Shillong staurolite Structural Plateau Subansiri district sulphide mineralisation Surma Surv SURVEY OF INDIA synclinorium tectonic Tikak parbat tinguaite trending tributaries type area Umrong reservoir units Upper Assam upto