Records of the Geological Survey of India
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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Arunachal Pradesh assemblage associated band basin bearing bedded blue body boulders chromite colour column concentration contain course cross Dalbuing Delai deposits diamictite Disang east eastern Eocene et al expedition exposed exposures float folding followed Formation fossils garnet Geol Geological Survey glaucophane gneiss Gondwana grade grains grey Group Himalaya hornblende host indicate limestone Lohit Lower mafic magnetite major Manipur mapping margin material matrix medium metamorphism Middle mineral minor Miri Formation Nagaland nature Nummulitic occur ophiolite belt Permian phyllite places plagioclase Plate present probably quartz quartzite range recorded region Report represented river rock samples sandstone schist schistose sedimentaries sediments seen sequence sericite shales shows Siang district sillimanite slopes strike structure studies suggest Surv Survey of India Table thick thin thrust tion trending Ukhrul ultramafics units Upper valley veins volcanic zone