Records of the Geological Survey of India, Volume 106The Survey, 1975 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
From inside the book
Results 1-3 of 72
Page 146
... grade and width of ore zones were computed for four cut - off values . Consequently , in estimating the tonnage and grade of each lode , four alternative zones were considered . In the first alternative , samples analysing 0. 5 % copper ...
... grade and width of ore zones were computed for four cut - off values . Consequently , in estimating the tonnage and grade of each lode , four alternative zones were considered . In the first alternative , samples analysing 0. 5 % copper ...
Page 156
... grade alone of a deposit give little idea about the distribution of ore grades in a deposit which is highly ... grade . From the table of averages it will be seen that the various averages or points of central tendencies ( Mean ...
... grade alone of a deposit give little idea about the distribution of ore grades in a deposit which is highly ... grade . From the table of averages it will be seen that the various averages or points of central tendencies ( Mean ...
Page 164
... grade . With the depletion of high grade depo- sits , the low grade ones are receiving more and more attention and the technological advances in recent years have made it possible to win metals from ore which were earlier considered ...
... grade . With the depletion of high grade depo- sits , the low grade ones are receiving more and more attention and the technological advances in recent years have made it possible to win metals from ore which were earlier considered ...
Contents
Volume 106 | 1 |
WESTERN REGION | 16 |
Engineering and Transport Division | 82 |
Copyright | |
30 other sections not shown
Other editions - View all
Common terms and phrases
alignment alluvium amphibolite Andhra Pradesh Asstt bands basalt basin bauxite Bihar biotite block bore holes boreholes Calcutta carried charnockite chert clay coal coalfield comprising copper Deccan Trap Delhi deposits depth Director district Division dolerite dolomite drill holes dykes east electrical logging exploration exploratory fault felspar foliation formation fossils garnetiferous geochemical geohydrological geological investigations geological mapping Geological Survey Geologist Jr geophysical Ghosh gneiss Gondwana grade grained granite gneiss graphite grey Groundwater hornblende indicated laboratory laterite limestone located Lucknow metres million tonnes mineralisation minerals nala occurs Orissa pegmatite phosphate phyllites pits power house Pradesh Project quartz quartzite Rajasthan Region river rock types S/Shri samples sandstone schist seams sediments shales Sharma shear Shri Singh Sinha spillway Srivastava strike length studies Survey of India systematic thickness thin toposheet Trap Flow traverse trending tubewells tunnel upto valley varies veins Vindhyan West Bengal zone