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 25
... Conglomerate This is a thickly bedded unit . Bedding is defined by pebble - free layers . Pebbles lie with their shortest diameter normal to bedding , without perceptible elongation due to shearing effects . The pebbles are almost ...
... Conglomerate This is a thickly bedded unit . Bedding is defined by pebble - free layers . Pebbles lie with their shortest diameter normal to bedding , without perceptible elongation due to shearing effects . The pebbles are almost ...
Page 27
... conglomerate attests to the sedimentary parentage of the conglomerate which has been taken to represent the base of the Shillong Group here . Shearing effects in the conglomerates : Elongation of pebbles in conglomerate bands may be ...
... conglomerate attests to the sedimentary parentage of the conglomerate which has been taken to represent the base of the Shillong Group here . Shearing effects in the conglomerates : Elongation of pebbles in conglomerate bands may be ...
Page 32
... conglomerate of the Shillong Group , about 50 m thick , strikes N 45 ° E - S 45 ° W and dips southeast at about 50 ° , away from the gneisses . A steep scarp ( Fig . 6 ) marks the junction . The Gneissic Complex occupies topographically ...
... conglomerate of the Shillong Group , about 50 m thick , strikes N 45 ° E - S 45 ° W and dips southeast at about 50 ° , away from the gneisses . A steep scarp ( Fig . 6 ) marks the junction . The Gneissic Complex occupies topographically ...
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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