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
... middle parts . The grain size increases upwards from fine to medium and the colour varies from brownish - bluish grey to faint pink , light bluish - light greyish - white to brownish - white . The current bedding in the lower and middle ...
... middle parts . The grain size increases upwards from fine to medium and the colour varies from brownish - bluish grey to faint pink , light bluish - light greyish - white to brownish - white . The current bedding in the lower and middle ...
Page 54
... ( middle ) and the Dafla Formation in the north . The Neogene rocks are thrust over in the north by the Lower Gondwana group of rocks . The Gondwana rocks inturn are thrust over by the Buxa or Daling intervened by the Abor Volcanics . A ...
... ( middle ) and the Dafla Formation in the north . The Neogene rocks are thrust over in the north by the Lower Gondwana group of rocks . The Gondwana rocks inturn are thrust over by the Buxa or Daling intervened by the Abor Volcanics . A ...
Page 61
... Middle Eocene and Upper Middle Eocene . It is suggested that the accretion of the Naga Hills ophiolites onto the continental margin possibly took place in the Late Eocene . Introduction Palaeocene , In course of mapping in the southern ...
... Middle Eocene and Upper Middle Eocene . It is suggested that the accretion of the Naga Hills ophiolites onto the continental margin possibly took place in the Late Eocene . Introduction Palaeocene , In course of mapping in the southern ...
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