Records of the Geological Survey of India, Volume 117, Part 2The Survey, 1986 - 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 18
... contains microcline ( mesoperthitic ) , plagioclase ( antiperthitic , basic oligoclase ) , quartz , biotite and large ... contain assemblages similar to those described above . In this area clinohumite ( ? chondrodite ) has been reported ...
... contains microcline ( mesoperthitic ) , plagioclase ( antiperthitic , basic oligoclase ) , quartz , biotite and large ... contain assemblages similar to those described above . In this area clinohumite ( ? chondrodite ) has been reported ...
Page 90
... contain any muscovite , sericite or any other mica , whic should have been a constituent , if these resulted from granitisation of the quartz - sericite rocks . Under microscope , the granites A DISPOSITION OF SOME QUARTZ REEFS IN THE ...
... contain any muscovite , sericite or any other mica , whic should have been a constituent , if these resulted from granitisation of the quartz - sericite rocks . Under microscope , the granites A DISPOSITION OF SOME QUARTZ REEFS IN THE ...
Page 114
... contains enclaves of various other rocks including grey granite , quartz - rich granite and dioritic granite in the ... contain any signi- ficant enclaves of metabasic rocks . A large tract of porphyritic coarse grained biotite granite ...
... contains enclaves of various other rocks including grey granite , quartz - rich granite and dioritic granite in the ... contain any signi- ficant enclaves of metabasic rocks . A large tract of porphyritic coarse grained biotite granite ...
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Common terms and phrases
albite amphibolite amphibolite facies aureole Babina banded iron-formation Basu Batholith Berwar Bijawar biotite bodies Bundelkhand Bundelkhand granitic massif Bundelkhand massif chlorite composition conglomerate country rocks crystals developed dips dolerite dykes emplacement enclaves esmeraldite exhibit feature feldspar folds foliation formation garnet Geol GEOLOGICAL SURVEY gneisses Gneissic Complex grade grained granite granite granitic rocks granitoid groundmass H₂O hornblende inclusions INDIA Records indicate intrusive Jhansi granite Jhararghat K-feldspar Kabrai Karesra Karitoran lamellae leucogranite magmatic magnetite Mahroni mapped Mau Ranipur megacrysts metabasic metamorphism microcline migmatites minerals muscovite Mylliem Mylliem Pluton myrmekite occur outcrops parallel pegmatite perthite phenocrysts plagioclase pluton porphyritic porphyritic coarse grained porphyritic granites Precambrian pyrophyllite quartz quartz reefs quartz-sericite rock quartzites recrystallization relict samples schist schistose sedimentary sediments sericite shear Shillong Group Shillong rocks Shillong Series South Khasi Batholith sphene strike structural suggest SURVEY OF INDIA syenitic textural trending twins upto veins xenoliths zone