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 78
... sandstone Massive sandstone 700 ft . 1300 ft . ( 2900 ft . ) Bedded sandstone 500 ft . Massive sandstone 400 ft . Bedded sandstone , sandy shale , carbonaceous shale 400 ft . JENAM Shale , a thin bedded sandstone and sandy shale 700 ft ...
... sandstone Massive sandstone 700 ft . 1300 ft . ( 2900 ft . ) Bedded sandstone 500 ft . Massive sandstone 400 ft . Bedded sandstone , sandy shale , carbonaceous shale 400 ft . JENAM Shale , a thin bedded sandstone and sandy shale 700 ft ...
Page 79
... sandstone are occasionally present both within the shale and sandstone units almost throughout the area . The composi- tion of individual sandstone and shale units , as well as the proportion of the two vary so much that the Barail ...
... sandstone are occasionally present both within the shale and sandstone units almost throughout the area . The composi- tion of individual sandstone and shale units , as well as the proportion of the two vary so much that the Barail ...
Page 81
... Sandstone , with the Baragolai and Tikak parbat to form together the Barails of Upper Assam . Evans extended the ... sandstone at Mokokchung and Wokha were designated by earlier workers as Naogaon Sandstone , it may be presumed that ...
... Sandstone , with the Baragolai and Tikak parbat to form together the Barails of Upper Assam . Evans extended the ... sandstone at Mokokchung and Wokha were designated by earlier workers as Naogaon Sandstone , it may be presumed that ...
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