Records of the Geological Survey of India, Volume 107Geological Survey of India, 1976 - 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 3
... suggesting late crystallisation of the porphyroblasts . Fresh elongated quartz grains exhibit dimensional preferred ... suggest that the gneisses might have been formed by felspathisation of parametamorphic rocks . Schists occur towards ...
... suggesting late crystallisation of the porphyroblasts . Fresh elongated quartz grains exhibit dimensional preferred ... suggest that the gneisses might have been formed by felspathisation of parametamorphic rocks . Schists occur towards ...
Page 9
... suggest a hydrothermal origin of the sulphide ore . The sequence of wall rock alteration as already stated suggests that late silica and potash rich solution accompanying sulphide mineralisation is imme- diately subsequent to ...
... suggest a hydrothermal origin of the sulphide ore . The sequence of wall rock alteration as already stated suggests that late silica and potash rich solution accompanying sulphide mineralisation is imme- diately subsequent to ...
Page 44
... suggest that the emplacement should have been gentle . The presence of injection gneiss , veins and veinlets of quartzo - felspathic material in the schistose rocks and ptygmatic folding in the granite suggest that the emplacement could ...
... suggest that the emplacement should have been gentle . The presence of injection gneiss , veins and veinlets of quartzo - felspathic material in the schistose rocks and ptygmatic folding in the granite suggest that the emplacement could ...
Contents
On studies of the Agglomeratic Slate and Panjal Trap in the Jhelum | 12 |
Chandranath granite Goa by A R Gokul and M D Srinivasan | 38 |
Geometry and age relation of minor folds in the Daling metamorphites | 46 |
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Common terms and phrases
acid agglomeratic slates Archaean assemblage Bababudan Group bands Barakar basalts bedrock beds Bihar biotite Boulder Conglomerate calcareous Chitradurga chlorite clays coal correlation craton Cuddapah deposits Dhok Pathan district east epidote facies felspar flora of India folds formation fossil galena Garo Hills Geoclemys Geol Geological Survey Glossopteris Glossopteris flora gneiss gneissic complex Gondwana grained greenish grey greenstone belts greyish high grade schists Ibid indicated isotopic Karharbari Kashmir Khasi Kurnool laterite limestone Lower Gondwana Lower Karewas metamorphism metres mineralisation minerals non-porphyritic occur overlying Palaeobotanist Panchet Panjal trap phenocrysts phyllite Pinjor Plate Pleistocene Pliocene porphyritic pyroxene quartz quartzite Raniganj Raniganj Coalfield Sandstone schist schist belts schistose schistose rocks sediments sequence shales Siwalik stratigraphic Supergroup Surv Survey of India Sylhet Sylhet Limestone Sylhet Sandstone Talchir Tatrot tectonic Tertiary thick unconformity Upper upto valley Vindhyan volcanic Western Block zeolite zone