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 54
... trending zone of chal- copyrite mineralisation located south of the Ranga river ( Fig . 10 ) has been traced intermittently for about 470 m , which also coincides with SP- and Magnetic anomalies . The sulphide minerals ( pyrrhotite ...
... trending zone of chal- copyrite mineralisation located south of the Ranga river ( Fig . 10 ) has been traced intermittently for about 470 m , which also coincides with SP- and Magnetic anomalies . The sulphide minerals ( pyrrhotite ...
Page 79
... trending linear belts , the individual exposures separated by the exposures of the Disang . This linear outcrop pattern is explained on account of roughly NE - SW trending folds . This folding with roughly NE - SW axial plane is , thus ...
... trending linear belts , the individual exposures separated by the exposures of the Disang . This linear outcrop pattern is explained on account of roughly NE - SW trending folds . This folding with roughly NE - SW axial plane is , thus ...
Page 81
... trending roughly in NE - SW direction . As a result of this folding , the Disang and Barail occur in a number of roughly NE - SW trending belts throughout the major part of Manipur and Nagaland . Further , since the sandstone at ...
... trending roughly in NE - SW direction . As a result of this folding , the Disang and Barail occur in a number of roughly NE - SW trending belts throughout the major part of Manipur and Nagaland . Further , since the sandstone at ...
Contents
A NOTE ON THE EVOLUTION OF THE MINERAL | 17 |
Pant | 24 |
A R Nambiar | 43 |
Copyright | |
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Common terms and phrases
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