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 27
... grade to more sheared rock in which host and tenant are indistinguishable on outcrop , shearing having caused a parallelism of both the siliceous and the opaque constituents . In thin section replacement of the quartz by ferruginous ...
... grade to more sheared rock in which host and tenant are indistinguishable on outcrop , shearing having caused a parallelism of both the siliceous and the opaque constituents . In thin section replacement of the quartz by ferruginous ...
Page 32
... grade are not very abrupt across the junction of the two groups , groups , and secondly , the strikes also become parallel . At this section it seems quite clear that the large swerve in the strike of the Gneissic Complex is an evidence ...
... grade are not very abrupt across the junction of the two groups , groups , and secondly , the strikes also become parallel . At this section it seems quite clear that the large swerve in the strike of the Gneissic Complex is an evidence ...
Page 40
... grade of metamorphism of the Gneissic Complex confuses this feature to some extent . For this sector , it may be said that the pluton is an upper mesozonal body intrusive into relict deep mesozonal to catazonal environments . The ...
... grade of metamorphism of the Gneissic Complex confuses this feature to some extent . For this sector , it may be said that the pluton is an upper mesozonal body intrusive into relict deep mesozonal to catazonal environments . The ...
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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