Records of the Geological Survey of India, Volume 106The Survey, 1975 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
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Page 175
... pegmatite bodies of small dimensions within the mica schists country to the southwest of Gobindih , where minor quantity of Beryl also occurs . Large erratic crystals of potash feldspar were also noted at places in small bodies of pegmatite ...
... pegmatite bodies of small dimensions within the mica schists country to the southwest of Gobindih , where minor quantity of Beryl also occurs . Large erratic crystals of potash feldspar were also noted at places in small bodies of pegmatite ...
Page 209
... pegmatites are roughly conformable with the schistosity while local discordance is not uncommon . Sill - like bodies of pegmatite , concordant and co - folded with the bedding but discordant with the axial plane schistosity of the ...
... pegmatites are roughly conformable with the schistosity while local discordance is not uncommon . Sill - like bodies of pegmatite , concordant and co - folded with the bedding but discordant with the axial plane schistosity of the ...
Page 25
... Pegmatite Pegmatite dykes are of common occurrence in the metamorphic terrain around the reservoir , and have intruded in different directions , the most prevalent being N.E.-S.W. to N.N.E.-S.S.W. Pegmatites are usually very coarse and ...
... Pegmatite Pegmatite dykes are of common occurrence in the metamorphic terrain around the reservoir , and have intruded in different directions , the most prevalent being N.E.-S.W. to N.N.E.-S.S.W. Pegmatites are usually very coarse and ...
Contents
Volume 106 | 1 |
WESTERN REGION | 16 |
Engineering and Transport Division | 82 |
Copyright | |
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alignment alluvium amphibolite Andhra Pradesh Asstt bands basalt basin bauxite Bihar biotite block bore holes boreholes Calcutta carried charnockite chert clay coal coalfield comprising copper Deccan Trap Delhi deposits depth Director district Division dolerite dolomite drill holes dykes east electrical logging exploration exploratory fault felspar foliation formation fossils garnetiferous geochemical geohydrological geological investigations geological mapping Geological Survey Geologist Jr geophysical Ghosh gneiss Gondwana grade grained granite gneiss graphite grey Groundwater hornblende indicated laboratory laterite limestone located Lucknow metres million tonnes mineralisation minerals nala occurs Orissa pegmatite phosphate phyllites pits power house Pradesh Project quartz quartzite Rajasthan Region river rock types S/Shri samples sandstone schist seams sediments shales Sharma shear Shri Singh Sinha spillway Srivastava strike length studies Survey of India systematic thickness thin toposheet Trap Flow traverse trending tubewells tunnel upto valley varies veins Vindhyan West Bengal zone