Records of the Geological Survey of India, Volume 117, Issues 1-2Vols. 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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... plagioclase demolished ; relict shapes of primary plagioclase can be traced by means of the presence of twin lamellae though their sites are mostly occupied by neocrystallized plagioclase and quartz . ( 3 ) Primary texture almost ...
... plagioclase demolished ; relict shapes of primary plagioclase can be traced by means of the presence of twin lamellae though their sites are mostly occupied by neocrystallized plagioclase and quartz . ( 3 ) Primary texture almost ...
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... plagioclase is in contact with the microcline : Rarely , two layers of myrme- kitic overgrowth occur around the plagioclase . This implies a growth of the myrmekite components from the interior towards the exterior . Perthite in the ...
... plagioclase is in contact with the microcline : Rarely , two layers of myrme- kitic overgrowth occur around the plagioclase . This implies a growth of the myrmekite components from the interior towards the exterior . Perthite in the ...
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... plagioclase : Development of this textural feature appears to be approximately coeval with development of perthites . This is suggested by the coalescence of some vein albite with these albitic rims . According to Tuttle ( 1952 ) , the ...
... plagioclase : Development of this textural feature appears to be approximately coeval with development of perthites . This is suggested by the coalescence of some vein albite with these albitic rims . According to Tuttle ( 1952 ) , the ...
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Common terms and phrases
alignment amphibolite analysis Andhra Pradesh anomaly Asstt Attended bands basalt basin bed rock belt Bihar Bijawar biotite block boreholes Bundelkhand Calcutta carried Chakraborty charnockite collected conglomerate covering an area Deccan Trap depth dips Director district Division dolerite dykes exposed feldspar folds foliation Formation geochemical geological mapping Geologist Jr geophysical geotechnical Ghosh glacier gneiss Gneissic Complex Gondwana grade grained granite granite gneiss granitoid Gupta Headquarters Hydel Project Hyderabad indicated iron-formation Jaipur Kumar limestone line km located logging Lucknow magnetite mapped an area massif metamorphism mica microcline migmatites mineral mineralisation Nagpur nala NE-SW NW-SE pegmatites phyllites plagioclase plutons porphyritic power house quartz quartz veins quartzite regional river rock types S/shri samples sandstone scale schist sediments shale Sharma shear Shillong Shillong Group Shri Singh slide slope spillway sq km Srivastava strike length studies surface surveys thick tion tonnes toposheet trending tunnel upto zone