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 68
... Valley Province : The hills of Nagaland , Mizoram , southern part of Assam and foot hill regions of Arunachal Himalaya bordering the Brahmaputra valley have been classified under this category of landform which is mainly cha- racterised ...
... Valley Province : The hills of Nagaland , Mizoram , southern part of Assam and foot hill regions of Arunachal Himalaya bordering the Brahmaputra valley have been classified under this category of landform which is mainly cha- racterised ...
Page 70
... valley . The Brahmaputra river originating in Tibet as Tsangpo enters Arunachal Pradesh and flows for a distance of ... valley of Assam which is about 720 km long , the river flows from east to west in the lower reaches , whereas , in ...
... valley . The Brahmaputra river originating in Tibet as Tsangpo enters Arunachal Pradesh and flows for a distance of ... valley of Assam which is about 720 km long , the river flows from east to west in the lower reaches , whereas , in ...
Page 71
... valley by south flowing Manipur river . In the valley , few isolated rock exposures are also present . The valley shows a gentle southern slope as evidenced from the drainage pattern . Evolution of the Landforms : The high rugged hills ...
... valley by south flowing Manipur river . In the valley , few isolated rock exposures are also present . The valley shows a gentle southern slope as evidenced from the drainage pattern . Evolution of the Landforms : The high rugged hills ...
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