Records of the Geological Survey of India, Volume 106Geological Survey of India, 1975 - 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 18
... felspar dominates over the potash felspar in the groundmass and frequently contains inclusions of quartz and mica . Plate 2 figure 1 records part of a large augen showing albite intergrown with microcline and perthitic texture . The ...
... felspar dominates over the potash felspar in the groundmass and frequently contains inclusions of quartz and mica . Plate 2 figure 1 records part of a large augen showing albite intergrown with microcline and perthitic texture . The ...
Page 20
... felspar , quartz , biotite , hornblende , occasionally diopside , garnet , apatite and sphene . The soda lime felspars appear fairly decomposed , and bending of the twin lamellae and secondary patchy twinning are commonly noticeable ...
... felspar , quartz , biotite , hornblende , occasionally diopside , garnet , apatite and sphene . The soda lime felspars appear fairly decomposed , and bending of the twin lamellae and secondary patchy twinning are commonly noticeable ...
Page 41
... felspar and occasional specks of pyrite . The felspar content varies from a few grains to 10 percent . A thin section of a specimen collected from 0.2 km S 10 ° E of Raghu- nathpura consists of subangular to well rounded , 1 mm sized ...
... felspar and occasional specks of pyrite . The felspar content varies from a few grains to 10 percent . A thin section of a specimen collected from 0.2 km S 10 ° E of Raghu- nathpura consists of subangular to well rounded , 1 mm sized ...
Contents
RECORDS | 1 |
Geology of the area around the Panchet dam reservoir district | 9 |
Lower Vindhyan Formations of Rajasthan by Balmiki Prasad | 31 |
9 other sections not shown
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Common terms and phrases
amphibolite average grade axial plane B-folds bands basin beds Bhagwanpura Bhutan biotite boreholes calcareous calcite carbonaceous chert chert member chlorite clay coarse grained conglomerate copper Deccan Traps deposit distribution district dolerite dolomite dolomitisation drill holes dykes east facies fault felspar folds foliation formation Gangotri glacier Geol Geological Survey gneiss Gondwanas granite granulites grey Himalaya hornblende indicate interbedded Intertrappean isopach Jangpangi Jour Khairmalia Khardeola Kundarkocha lateral moraine limestone lithological Lower Vindhyan Maldeota Maleri-Kota metamorphism metres Milam glacier mineralisation minerals nala Nimbahera occur outcrops overlies Pagladiya Panchet pelitic phosphate rock phosphate unit Phuntsholing phyllite plagioclase Plate Pradesh present pyroxene quartz quartz veins quartzite ratio reservoir river rock types sample data Sand sandstone Sawa schist schistosity sedimentary sediments Series shale snout stratigraphic structures Surv Survey of India syncline tectonic thickness Thimpu thin Trap Flow upto valley values zone