Records of the Geological Survey of India, Volume 113, Parts 4-6The Survey, 1980 - 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 79
... value ( 2000 gammas ) of nagnetic profile has been recorded around station 05 m from the point A , flanked by fluctuating magnetic values in order of 500 gammas on the ither side over the ultramafic suite of rocks . The agnetic high value ...
... value ( 2000 gammas ) of nagnetic profile has been recorded around station 05 m from the point A , flanked by fluctuating magnetic values in order of 500 gammas on the ither side over the ultramafic suite of rocks . The agnetic high value ...
Page 40
... values for gold are consistently less than one ppm ; the values for antimony range from traces to 60 ppm ; and aresenic has varying incidence from In the case of less than 10 ppm to 400 ppm . arsenic , all values less than 10 ppm were ...
... values for gold are consistently less than one ppm ; the values for antimony range from traces to 60 ppm ; and aresenic has varying incidence from In the case of less than 10 ppm to 400 ppm . arsenic , all values less than 10 ppm were ...
Page 4
... values for each element . The statistical analyses of the geochemical data indicated indicated that the threshold values are 95 , 120 , 64 and 130 ppm for Cu , Zn , Ni & Co respectively as against the background values of 22 , 46 , 22 ...
... values for each element . The statistical analyses of the geochemical data indicated indicated that the threshold values are 95 , 120 , 64 and 130 ppm for Cu , Zn , Ni & Co respectively as against the background values of 22 , 46 , 22 ...
Contents
Part | 1 |
Problems of correlation of PreGondwana rock units of Arunachal Pradesh and adjoining areasa review | 15 |
The Sung Valley alkaline ultramafic carbonatite complex East Khasi and Jaintia Hills districts Meghalaya | 24 |
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Common terms and phrases
alluvium anorthosite assemblage associated augite bands basalt flows basin beds belt biotite Bombay bore holes borehole calcite carbonatite Charnockite chert chlorite chromite clay clinopyroxene coal complex Deccan Trap deposits developed district drainage dykes emplaced fault felspar fluorite folds Formation fossil fragments gabbro geochemical Geol Geological Survey geomorphic gneisses Gondwana grade grains granite granulites greisens grey groundmass Group hill Himalayas ijolite indicated intrusive laterite layers limestone magnetite Manipur mapping Meghalaya metamorphic metres migmatites mineralisation minerals Narmada occur olivine opaque ophiolite phenocrysts phosphorite phyllite plagioclase Plate porphyritic Pradesh present pyroclastic pyroxene pyroxenite quartz quartz veins quartzite region river rocks samples sandstone schist seam sedimentary sediments sequence serpentinite shale sillimanite soil stratigraphic structure studies sub-surface surface Surv Survey of India Tapti tectonic thickness thin tion trending tuff ultramafic Unpublished GSI Report upto Vaghur valley volcanic zone