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 32
... eastern part of the osoclinal fold position to form a broad regional fold whose hinge line coincides with the ridge trending NNE - SSW , between Tidding and Dibang valleys . This movement culminated into a major thrusting , one of which ...
... eastern part of the osoclinal fold position to form a broad regional fold whose hinge line coincides with the ridge trending NNE - SSW , between Tidding and Dibang valleys . This movement culminated into a major thrusting , one of which ...
Page 47
... eastern hinge zone and the eastern limb . The major part of the western hinge zone and a part of the com- mon limb are thrust over by the Siang Formation . The major structure is an isoclinal , overturned , re- clined fold of synclinal ...
... eastern hinge zone and the eastern limb . The major part of the western hinge zone and a part of the com- mon limb are thrust over by the Siang Formation . The major structure is an isoclinal , overturned , re- clined fold of synclinal ...
Page 81
... eastern Bhutan , the Diuri Boulder Bed and the Thungsing Quartzite occur between the Buxa and the Lower Gondwana sequence ( Jangpangi , 1972 ) . In some sections , the Thungsing Quartzite conformably underlies ithe Diuri Boulder Bed ...
... eastern Bhutan , the Diuri Boulder Bed and the Thungsing Quartzite occur between the Buxa and the Lower Gondwana sequence ( Jangpangi , 1972 ) . In some sections , the Thungsing Quartzite conformably underlies ithe Diuri Boulder Bed ...
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