Records of the Geological Survey of IndiaThe Survey, 1986 - 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 48
... basin with the upper part representing sedimentation in a tidal flat environ- ment . B - Member ( 100 m in column II ) : The A - member grades into the B - member with an in- crease in the content of argillaceous materials and by the ...
... basin with the upper part representing sedimentation in a tidal flat environ- ment . B - Member ( 100 m in column II ) : The A - member grades into the B - member with an in- crease in the content of argillaceous materials and by the ...
Page 52
... basin where the rate of sedimentation exceeded the rate of subsidence leading to the increase in the arenaceous content . The rise in the source area led to the formation of the oligomictic conglo- merate at the top . The oligomictic ...
... basin where the rate of sedimentation exceeded the rate of subsidence leading to the increase in the arenaceous content . The rise in the source area led to the formation of the oligomictic conglo- merate at the top . The oligomictic ...
Page 58
... basin of Kashmir . 4 . The Eocene basin is marked with initially fresh water regime which gradually turned into a marine basin . The calca- reous strata in the foot hills followed by Nummulitic limestone in the upper reaches link the ...
... basin of Kashmir . 4 . The Eocene basin is marked with initially fresh water regime which gradually turned into a marine basin . The calca- reous strata in the foot hills followed by Nummulitic limestone in the upper reaches link the ...
Contents
PETROLOGY AND CHEMISTRY OF LEUCOCRATIC ROCKS FROM NAGA | 1 |
BLUE SCHISTS C TYPE ECLOGITES AND GARNET BEARING MAFIC | 7 |
THE NICKELIFEROUS MAGNETITE ASSOCIATED WITH THE NAGA | 15 |
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Abor Volcanics albite amphibolite antiform Arunachal Pradesh assemblage basin blue schists calcite Chattopadhyay cherty chlorite chromite coarse colour column Dalbuing Delai river deposits diamictite Disang Formation East Siang district eclogites Eocene epidote facies feldspar float boulders folding foliation foot hills fossils garnet Geol Geological Survey glaucophane gneiss Gondwana grey greyish Hills ophiolite belt hills/ridges Himalaya hornblende host rock Hunli intercalations Ithun valley limestone Lohit Lower mafic mafic segregations magnetite magnetite body Manipur margin matrix medium grained metamorphism mineral Miri Formation Miri Group Naga Hills Naga Hills ophiolite Nagaland nala NE-SW Nummulitic occur oligomictic conglomerate Olistostromal opaques ophiolite Permian phyllite plagioclase plagiogranite Plate quartz quartzite Radiolaria region samples sandstone schist schist band schistose sedimentaries sediments sequence serpentinites shale shows sillimanite siltstone Singh structure Surv Survey of India tectonic thick thin Tidding trending Ukhrul ultramafics Upper upto veins Vidyadharan white quartzite Yinkiong zone