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 70
... upper reaches , the flow is from NE to SW . In the north , the valley is bounded by Bhutan and Arunachal Himalaya , and to the east by the Naga hills . Further downstream , the southern margin of the valley is bounded by Meghalaya ...
... upper reaches , the flow is from NE to SW . In the north , the valley is bounded by Bhutan and Arunachal Himalaya , and to the east by the Naga hills . Further downstream , the southern margin of the valley is bounded by Meghalaya ...
Page 75
... UPPER ASSAM AND SUGGESTION FOR REGROUPING By S P SAXENA GEOLOGICAL SURVEY OF INDIA ( With Figure - 12 ) Abstract Thick argillo - arenaceous sequence overlying a thick shale sequence ( Disang ) in parts of Nagaland and Manipur is ...
... UPPER ASSAM AND SUGGESTION FOR REGROUPING By S P SAXENA GEOLOGICAL SURVEY OF INDIA ( With Figure - 12 ) Abstract Thick argillo - arenaceous sequence overlying a thick shale sequence ( Disang ) in parts of Nagaland and Manipur is ...
Page 81
... Upper Assam . Evans extended the Barail of his type area upto west of Manipur plains and in the hills west of Kohima . From here , the author's observations clearly indicate , that the rocks of the Disang ( type area in Disang river ) ...
... Upper Assam . Evans extended the Barail of his type area upto west of Manipur plains and in the hills west of Kohima . From here , the author's observations clearly indicate , that the rocks of the Disang ( type area in Disang river ) ...
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