Records of the Geological Survey of India, Volume 130, Parts 2-3The Survey, 1995 - Earthquakes Vols. 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 22
... komatiites . Petrochemical data indicate that the volcanics of the area conform to either of the associations of tholei- ite or komatiite . The tholeiitic lavas , ranging form basalt to andes- itic in composition are generally fine ...
... komatiites . Petrochemical data indicate that the volcanics of the area conform to either of the associations of tholei- ite or komatiite . The tholeiitic lavas , ranging form basalt to andes- itic in composition are generally fine ...
Page 23
... komatiite and high iron tholeiite fields . The ultrabasics plot in the field of peridotitic komatiite . The ultramafic schists which have dominant but variable glass content , range in composition from peridotitic komatiite to basaltic ...
... komatiite and high iron tholeiite fields . The ultrabasics plot in the field of peridotitic komatiite . The ultramafic schists which have dominant but variable glass content , range in composition from peridotitic komatiite to basaltic ...
Page 25
... komatiite at Dhipasai ( 22 ° 32'17 " : 86 ° 05'30 " ) with deformed pillows and polyhe- dral jointing cracks , the ... komatiitic ultramafics contain serpentine , pseudomorph after olivine in a groundmass of serpentine , talc , chlorite ...
... komatiite at Dhipasai ( 22 ° 32'17 " : 86 ° 05'30 " ) with deformed pillows and polyhe- dral jointing cracks , the ... komatiitic ultramafics contain serpentine , pseudomorph after olivine in a groundmass of serpentine , talc , chlorite ...
Contents
ANTARCTICA DIVISION 5359 | 53 |
BHUTAN UNIT 6079 | 60 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING 80125 | 80 |
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amphibolite analysis Andaman anomaly assemblage bands Barakar Barakar Formation basalt basemetal basin belt Bhutan Bihar biotite block boreholes carried charnockites clay coal seams Coalfield coarse Code covered Deccan Deccan trap deposits depth Director district Division drilling east Eastern fault feldspar field season foliation garnet geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION gneiss gold Gondwana grade grained granite gneiss granitoids granulite grey Group heavy minerals indicated intersected Kamthi lignite limestone lineament lithounits located magnetic metamorphism mica mineralisation occur olivine Orissa OVERVIEW pegmatite petrographic phyllite plagioclase potential present programme Project quartz quartz veins quartzite range Raniganj REGIONAL EXPLORATION river rocks sand sandstone scale schist seabed seam zones sector shale shear zone silty Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment surface Survey of India thickness tion toposheet trending ultramafic upto varies volcanics West Bengal