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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Page 399
... Complex and the Shillong " Series " ( hereafter called the Shillong Group ) has been established defini- tively ; the unconformity at first sight resembles the so- called Eparchaean hiatus or the Archaean - Proterozoic contact . ( 3 ) ...
... Complex and the Shillong " Series " ( hereafter called the Shillong Group ) has been established defini- tively ; the unconformity at first sight resembles the so- called Eparchaean hiatus or the Archaean - Proterozoic contact . ( 3 ) ...
Page
... Complex is represented by biotite schists with subhorizontal recumbent folds ( Fig . 16 ) in which the axial plane foliation strikes N 60 ° W - S 60 ° E . The basal conglomerate of the Shillong Group , about 50 m thick , strikes N 45 ...
... Complex is represented by biotite schists with subhorizontal recumbent folds ( Fig . 16 ) in which the axial plane foliation strikes N 60 ° W - S 60 ° E . The basal conglomerate of the Shillong Group , about 50 m thick , strikes N 45 ...
Page 6
... Complex Lying north of the Singhbhum orogenic belt ( see Fig . 1 ) , the complex forms an east - west arcuate belt 500 km long and 200 km wide . It is a composite mass consisting mainly of granite gneiss , migmatites and massive granite ...
... Complex Lying north of the Singhbhum orogenic belt ( see Fig . 1 ) , the complex forms an east - west arcuate belt 500 km long and 200 km wide . It is a composite mass consisting mainly of granite gneiss , migmatites and massive granite ...
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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