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 29
Geological Survey of India. The muscovite - biotite - garnet schists are medium grained rocks . Muscovite grows as fairly large flakes and also as aggregates of rather decussate crystals ; garnet has a tendency to grow at the cores of ...
Geological Survey of India. The muscovite - biotite - garnet schists are medium grained rocks . Muscovite grows as fairly large flakes and also as aggregates of rather decussate crystals ; garnet has a tendency to grow at the cores of ...
Page 43
... muscovite often forms flakes following the ( 001 ) or ( 010 ) directions . Quartz The main variety of quartz builds ... Muscovite Muscovite occurs in two forms . Muscovite I are flakes with idiomorphic outlines closely associated with ...
... muscovite often forms flakes following the ( 001 ) or ( 010 ) directions . Quartz The main variety of quartz builds ... Muscovite Muscovite occurs in two forms . Muscovite I are flakes with idiomorphic outlines closely associated with ...
Page 79
... muscovite schist with abundant muscovite , decom- posed biotite , sodic plagioclase , garnet , iron - ore , ' rutile and apatite at about 0.8 km N 75 ° W of the above road junction . He also describes greenish white quartzite and ...
... muscovite schist with abundant muscovite , decom- posed biotite , sodic plagioclase , garnet , iron - ore , ' rutile and apatite at about 0.8 km N 75 ° W of the above road junction . He also describes greenish white quartzite and ...
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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