Records of the Geological Survey of India, Volume 117, Part 2
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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albite appear associated bands basic bedding biotite bodies Bundelkhand close coarse grained common composition conglomerate considered contain crystals deposits described developed dips direction distribution dolerite dykes earlier effects emplacement enclaves evidences exhibit facies feldspar folds foliation formation fracture Geol GEOLOGICAL GEOLOGICAL SURVEY gneisses Gneissic Complex grade grained granite granitic rocks granitoid growth Hills inclusions indicate intrusive iron-formation Jhansi Khasi Lalitpur later leucogranite magnetite mapped massif material medium megacrysts metamorphism microcline migmatites minerals muscovite nature northern noted occur origin parallel pattern pegmatite perthite phase phenocrysts places plagioclase planes pluton porphyritic present primary pyrophyllite quartz reefs quartzites rare recorded regional Report river rocks samples scale schist schistosity sedimentary seen sericite Series shear Shillong Group similar southern strike structural suggest SURVEY OF INDIA textural Trace trending twins variety veins zone