Records of the Geological Survey of India, Volume 117, Part 21867- includes the "Annual report of the Geological survey of India". |
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albite appear associated bands basic bedding biotite bodies Bundelkhand Bundelkhand granitic 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 SURVEY gneisses Gneissic Complex grade granite granitic rocks granitoid growth Hills inclusions indicate intrusive iron-formation Jhansi Karitoran Khasi Lalitpur later leucogranite magnetite mapped massif material medium megacrysts metamorphism microcline migmatites minerals muscovite nature northern noted occur origin parallel pattern pegmatite perthite phenocrysts places plagioclase planes pluton porphyritic present primary pyrophyllite quartz reefs quartz-sericite quartzites rare recorded regional Report rocks samples scale schist schistose sedimentary seen sericite Series shear Shillong Group similar southern strike structural suggest SURVEY OF INDIA Table textural Trace trending twins variety veins zone