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 20
... hornblende , sphende , apatite , zircon , iron ore ( magnetite ) , epidote - zoisite , minor plagioclase and quartz ... hornblende resulting in the release of . sphene , as follows : - Biotite + plagioclase ( 45 % An ) + quartz ...
... hornblende , sphende , apatite , zircon , iron ore ( magnetite ) , epidote - zoisite , minor plagioclase and quartz ... hornblende resulting in the release of . sphene , as follows : - Biotite + plagioclase ( 45 % An ) + quartz ...
Page 29
... hornblende- hornfels facies at the very contacts against the granite .. The two quartzitic bands from within this generally pelitic sector have already been described . From wall to From wall to wall of the batholith the following rock ...
... hornblende- hornfels facies at the very contacts against the granite .. The two quartzitic bands from within this generally pelitic sector have already been described . From wall to From wall to wall of the batholith the following rock ...
Page 59
... hornblende in hornblende - oligoclase gneiss . The haphazard arrangement of the hornblende suggests hornfelsic tendency ( × 45 ) . a S. K. Mazumder Records , Vol . 117 , Pt . 2 Fig.
... hornblende in hornblende - oligoclase gneiss . The haphazard arrangement of the hornblende suggests hornfelsic tendency ( × 45 ) . a S. K. Mazumder Records , Vol . 117 , Pt . 2 Fig.
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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