Records of the Geological Survey of India, Volume 109Geological Survey of India, 1974 - 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 17
... average thickness or the zones with encouraging results of the deposit / orebody can be developed . The arithmetic formula for weighted average grade = t1 xa + t , xa , + ... + tn X an 2 2 t1 + to + ...... + t2 n = 1,2,3 , ......... etc ...
... average thickness or the zones with encouraging results of the deposit / orebody can be developed . The arithmetic formula for weighted average grade = t1 xa + t , xa , + ... + tn X an 2 2 t1 + to + ...... + t2 n = 1,2,3 , ......... etc ...
Page 31
... average grade The computation of average grade in a trench line has been earlier discussed . For evaluation of average grade of a block from trench samples , there may be two alternatives , ( a ) where the trenches across the strike are ...
... average grade The computation of average grade in a trench line has been earlier discussed . For evaluation of average grade of a block from trench samples , there may be two alternatives , ( a ) where the trenches across the strike are ...
Page 32
... average assays of individual boreholes , with w1 , WWn corresponding widths and the distance between the borehole points are more or less equal , but when this distance varies , the average grade is calculated as follows : Average grade ...
... average assays of individual boreholes , with w1 , WWn corresponding widths and the distance between the borehole points are more or less equal , but when this distance varies , the average grade is calculated as follows : Average grade ...
Contents
An approach to Quaternary research with examples from Hungary | 5 |
Outline of methods of detailed exploration of bedded limestone | 14 |
Algal stromatolites in the Bhander Group of Formations | 38 |
Copyright | |
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algal amphibolite Andhra Pradesh assemblage axial plane B₁ bands Baraganda basin beds Bihar bindrabunensis borehole Bose calc-magnesian rocks Callialasporites carbonatite chlorite clays Collenia column contour core Cretaceous deformation deposit depth developed diamonds diopside district dolomite drilling Eocene facies flora folds fossils genus Geol Geological Survey Geologist Gondwana grade grains granite grey Guruvayur horizon indicate interbedded Intertrappean Jurassic Kemari kimberlites known laminae Lattavaram limestone Limestone member lineation lithologic Lower Madhya Pradesh Magardha Mahayuga mapping mesoscopic metamorphism mica mineralisation minerals Nagod observed occur Palaeobotanist pelitic Plate plunge pollen present pyrites quarry quartz quartz-mica-schist quartzite Quaternary Rajmahal hills rajmahalensis river sahnii samples sandstone Sanskrit schist schistosity sediments sequence shale shear Siddhanta siliceous slate species spores stratigraphic stromatolites structures Subarea Survey of India Suryasiddhanta talc Tamil Nadu Tanur thickness tremolite ultramafic Upper Gondwana Varahamihira vertical Wajrakarur water level zones