Records of the Geological Survey of India, Volume 115, Parts 3-4The Survey, 1987 - 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. |
From inside the book
Results 1-3 of 21
Page 17
... units are mapped in the Phyangla area in Sikkim and are named as Units A , B , C & D. Unit B comprises interbedded chlorite , biotite , garnet , staurolite and kyanite schists and these are the outcome of regional metamorphism of parent ...
... units are mapped in the Phyangla area in Sikkim and are named as Units A , B , C & D. Unit B comprises interbedded chlorite , biotite , garnet , staurolite and kyanite schists and these are the outcome of regional metamorphism of parent ...
Page 18
... Unit A , comprising quartzites with minor bands of schi- sts is followed by Unit B which is a thicker unit of ... units are recorded in Table 1. Unit B is the relevant unit for the present work and is described in greater detail ...
... Unit A , comprising quartzites with minor bands of schi- sts is followed by Unit B which is a thicker unit of ... units are recorded in Table 1. Unit B is the relevant unit for the present work and is described in greater detail ...
Page 79
... units almost throughout the area . The composi- tion of individual sandstone and shale units , as well as the proportion of the two vary so much that the Barail rocks expo- sed along different sections within the area give different ...
... units almost throughout the area . The composi- tion of individual sandstone and shale units , as well as the proportion of the two vary so much that the Barail rocks expo- sed along different sections within the area give different ...
Contents
A NOTE ON THE EVOLUTION OF THE MINERAL | 17 |
Pant | 24 |
A R Nambiar | 43 |
Copyright | |
3 other sections not shown
Other editions - View all
Common terms and phrases
aegirine alkaline rocks Arunachal Pradesh assemblage Barail Range bedded biotite borehole Brahmaputra camptonites carbonatite Chalcopyrite charnockite chlorite Coal cordierite deposits Disang dissected hills drainage dyke Evans feldspar feldspathic ijolite flood plain foliation fractured garnet Geol GEOLOGICAL SURVEY gneiss Golagar basin Golagar Nala grains GSI Rec 115 Hills district Himalaya ijolite immiscibility Indravati river inner belt Kohima Kohima synclinorium Kopili Koraput lamprophyres landforms magma magnetite Manipur Meghalaya metamorphic metapelites Mikir hills mineral mineralised zone muscovite Nagaland Nala Naogaon Naogaon Sandstone NE-SW occur Orissa orthoclasite phenocrysts Phyangla Plate point bar polymetallic porphyroblasts Potin Formation pyrite pyrrhotite quartz Ranga River Ranga Valley Rec 115 pts region ridge and valley samples San Nala sandstone schist shale Shillong staurolite Structural Plateau Subansiri district sulphide mineralisation Surma Surv SURVEY OF INDIA synclinorium tectonic Tikak parbat tinguaite trending tributaries type area Umrong reservoir units Upper Assam upto