Records of the Geological Survey of India, Volume 97Government of India, 1966 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 183
... pegmatite of Shah prospect has a steep dip towards W.S.W. It is about 20 m . thick . Muscovite of pale ruby colour is found in this pegmatite , chiefly made up of sodic plagioclase and quartz . The pegmatite of Mohana mine is a pipe ...
... pegmatite of Shah prospect has a steep dip towards W.S.W. It is about 20 m . thick . Muscovite of pale ruby colour is found in this pegmatite , chiefly made up of sodic plagioclase and quartz . The pegmatite of Mohana mine is a pipe ...
Page 55
... pegmatites are locally common . It may be concluded from the above features that the pegmatites have not been formed by in situ recrystallisation of the country rocks but from fluids emplaced into the ' pegmatite thoroughfare ...
... pegmatites are locally common . It may be concluded from the above features that the pegmatites have not been formed by in situ recrystallisation of the country rocks but from fluids emplaced into the ' pegmatite thoroughfare ...
Page 58
... pegmatite Perthite - plagioclase - pegmatite Perthite - quartz pegmatite Muscovite - cleavelandite pegmatite Rajasthan : Time ......... Quartz core , quartz - pegmatite and crystallisation of microcline ....... Quartz - felspar ...
... pegmatite Perthite - plagioclase - pegmatite Perthite - quartz pegmatite Muscovite - cleavelandite pegmatite Rajasthan : Time ......... Quartz core , quartz - pegmatite and crystallisation of microcline ....... Quartz - felspar ...
Contents
GEOLOGICAL SURVEY OF INDIA | 1 |
Bihar Circle | 8 |
West Bengal Circle | 16 |
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alignment alluvium Alwar amphibolite Andhra Pradesh Archaean Asstt bands Banerjee Barakar basalt Bihar boreholes Calcutta carried charnockite Circle clay coal seams coalfield Damudas Deccan Trap deposits depth dips district dolerite dolomite drilling Dutta dykes Eocene examined exposed fault folded foliation formations fossil Geol geological mapping Geological Survey Geologists Geologists Senior Geophysical Ghosh gneiss Gondwana granite gneiss groundwater Hydel Hyderabad investigation iron-ore Jammu kilometres laboratory limestone located Lonar Madhya Pradesh Madras Maharashtra mapped Scale metres million tonnes mineral mineralisation Murthy nala occurs pegmatite Petrological phyllite Prasad Project quartz quartz veins quartzite Rajasthan recommended Regional Office river rock types samples sand sandstone Sarvashri schist shale Sharma sheared sheets Shri Singh Siwalik spillway Srivastava structure studies Superintending Geologist in-Charge Survey of India Talchir thickness tion trend tubewells tunnel Udaipur district Uttar Pradesh valley West Bengal zone