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 8
... east . The slope and the escarpments are generally moderate , i.e. , 30 to 45 and vertical respectively with rocky surfaces varying from place to place between elevations of 1040 m and 636 m . The escarpments trend NNE - SSW , NNW - SSE ...
... east . The slope and the escarpments are generally moderate , i.e. , 30 to 45 and vertical respectively with rocky surfaces varying from place to place between elevations of 1040 m and 636 m . The escarpments trend NNE - SSW , NNW - SSE ...
Page 69
... eastern and north - eastern parts ( i.e. south and east of Karbi - Anglong hills and east of Shillong plateau ) the dissection is low to moderate and without much deep incision . Some of these areas exhibit fine dendritic drainage ...
... eastern and north - eastern parts ( i.e. south and east of Karbi - Anglong hills and east of Shillong plateau ) the dissection is low to moderate and without much deep incision . Some of these areas exhibit fine dendritic drainage ...
Page 70
... east by the Naga hills . Further downstream , the southern margin of the valley is bounded by Meghalaya upland with inselbergs jutting out from alluvial plain . The Brahmaputra , in its journey from east to west is joined by numerous ...
... east by the Naga hills . Further downstream , the southern margin of the valley is bounded by Meghalaya upland with inselbergs jutting out from alluvial plain . The Brahmaputra , in its journey from east to west is joined by numerous ...
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