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 26
... present expedition area was carried out by the Geological Survey of India . The purpose of this present expedition was thus essen- tially an attempt to geologically tie up these areas and to study the rock types and their dispositions ...
... present expedition area was carried out by the Geological Survey of India . The purpose of this present expedition was thus essen- tially an attempt to geologically tie up these areas and to study the rock types and their dispositions ...
Page 43
... present paper deals with the sedimentation history of the Miri Formation in a part of the East Siang district of Arunachal Pradesh . Three lithostratigraphic units are mapped in this area , viz . , ( 1 ) the Siang Formation , ( 2 ) the ...
... present paper deals with the sedimentation history of the Miri Formation in a part of the East Siang district of Arunachal Pradesh . Three lithostratigraphic units are mapped in this area , viz . , ( 1 ) the Siang Formation , ( 2 ) the ...
Page 47
... present area lies to the west of the Yinkiong antiform . The Miri Formation on the western limb of this antiform ( second generation antiform ) shows a regional dex- tral fold of first generation with two prominent hinges . The present ...
... present area lies to the west of the Yinkiong antiform . The Miri Formation on the western limb of this antiform ( second generation antiform ) shows a regional dex- tral fold of first generation with two prominent hinges . The present ...
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