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 92
... exhibit disseminations of pyrite , specular hematite and rarely also chalcopyrite . Partial chemical analyses of one sample of reef gave 95.52 % of SiO , and 1.68 % total iron . The segments bearing sul- phides show sign of ...
... exhibit disseminations of pyrite , specular hematite and rarely also chalcopyrite . Partial chemical analyses of one sample of reef gave 95.52 % of SiO , and 1.68 % total iron . The segments bearing sul- phides show sign of ...
Page 95
... exhibit plunge of 65 ° towards N 58 ° E . In the Kamla Sagar Dam banded iron body , the axial plane dips 74 ° towards the north . However , there are no congruous major . folds and the linear trend of the bodies which as in Girar area ...
... exhibit plunge of 65 ° towards N 58 ° E . In the Kamla Sagar Dam banded iron body , the axial plane dips 74 ° towards the north . However , there are no congruous major . folds and the linear trend of the bodies which as in Girar area ...
Page 98
... exhibit sinistral displacement of pre - existing linear elements such as the iron - formation bodies , contact of granite and the dykes such as the Birdha syenite porphyry to the NE ofˇ Gundera , by an average of one kilometre . The ...
... exhibit sinistral displacement of pre - existing linear elements such as the iron - formation bodies , contact of granite and the dykes such as the Birdha syenite porphyry to the NE ofˇ Gundera , by an average of one kilometre . 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