Records of the Geological Survey of India, Volume 110The Survey, 1978 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
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Page 29
... iron ore belt . The samples show very conspicuous banding characters due to alternate arrangements of iron - poor chert and iron - rich layers . The most dominant iron mineral is hematite / martite with the grain size varying from dust ...
... iron ore belt . The samples show very conspicuous banding characters due to alternate arrangements of iron - poor chert and iron - rich layers . The most dominant iron mineral is hematite / martite with the grain size varying from dust ...
Page 190
... iron formations , and manganese - bearing greywackes and metavolcanics , respec- Area tively . Cherty quartzites in ... iron ore , mapped 175 sq km in north Goa ( 15 ° 27′04 ' - 37′30 ′′ : 74 ° 00 ' - 08′35 ′′ , 481 / 2 / 2 / , 2 / 3 , 2 ...
... iron formations , and manganese - bearing greywackes and metavolcanics , respec- Area tively . Cherty quartzites in ... iron ore , mapped 175 sq km in north Goa ( 15 ° 27′04 ' - 37′30 ′′ : 74 ° 00 ' - 08′35 ′′ , 481 / 2 / 2 / , 2 / 3 , 2 ...
Page 61
... Iron ore series of Dunn north of the copper belt thrust ) . The Singhbhum Shear Zone ( copper belt thrust ) with widespread minera- lisation and synkinematic migmatitic granites . Metamorphosed rocks of the Iron Ore group of Sarkar and ...
... Iron ore series of Dunn north of the copper belt thrust ) . The Singhbhum Shear Zone ( copper belt thrust ) with widespread minera- lisation and synkinematic migmatitic granites . Metamorphosed rocks of the Iron Ore group of Sarkar and ...
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amphibolite Andhra Pradesh anomaly anorthosite Archaean Asstt bands Banerjee basalt basemetal basin bauxite belt Bihar biotite boreholes Calcutta carried chalcopyrite charnockite clay coal conglomerate deposits depth dips district dolerite dolomite drilling dykes Eastern facies folds Formation fossils Gangpur geochemical Geol Surv Ind Geological Survey Geologist Jr Geology Division Geophysical geotechnical Ghosh gneiss Gondwana granite granite gneiss granulite Gupta Headquarters indicated intrusive investigated Kumar Laboratory laterite lava limestone line km Madhya Pradesh magnetite Mallampalli mapped metamorphism mineral mineralisation Mulug Murthy nala occur Orissa Pakhal pegmatite phyllite Precambrian Project pyrite quartz veins quartzite Rajasthan Rec Geol Surv region river S/Shri samples sand sandstone Sarkar scale schist seams sedimentary sediments sequence shale shear zone Shri Singh Singhbhum granite Sinha sq km sq km area Srivastava stratigraphic structures studies Sullavai Supergroup Survey of India tectonic thick traverse trending tunnel upto valley Vindhyan volcanic West Bengal