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 52
... varying from 25 cm to 5 m ) and sills ( thickness varying from 0.5 m to 3 m ) are seen to traverse the quartzite ... varies from 3 % to 20 % of the total rock . The lamprophyres are of ' minette ' type . A & 05 10 1.5 Zo Logo 1969 ...
... varying from 25 cm to 5 m ) and sills ( thickness varying from 0.5 m to 3 m ) are seen to traverse the quartzite ... varies from 3 % to 20 % of the total rock . The lamprophyres are of ' minette ' type . A & 05 10 1.5 Zo Logo 1969 ...
Page 10
... varies from 2 to 16 m . A positive cut - off going down to bedrock is the only answer under these conditions to prevent underseepage . So in the river section and a part of the banks adjacent to it , i . e . from R. D. 810 to 1530 m ...
... varies from 2 to 16 m . A positive cut - off going down to bedrock is the only answer under these conditions to prevent underseepage . So in the river section and a part of the banks adjacent to it , i . e . from R. D. 810 to 1530 m ...
Page 136
... varies from 9 to 3 depending upon whether it is silica based phosphorite or a carbonate phosphorite . The SiO2 - P2 05 plot shows that there is a steep rise in silica percentage when the percentage of P205 falls indicating that the ...
... varies from 9 to 3 depending upon whether it is silica based phosphorite or a carbonate phosphorite . The SiO2 - P2 05 plot shows that there is a steep rise in silica percentage when the percentage of P205 falls indicating that the ...
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 |
Copyright | |
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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