Records of the Geological Survey of India, Volume 106Geological Survey of India, 1975 - 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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Results 1-3 of 19
Page 144
... copper deposit , Singhbhum district , Bihar . The estimates of reserves and grade made by constructing area of influence around each drill hole and by statistical method have been compared and the adequacy of the data and reliability of ...
... copper deposit , Singhbhum district , Bihar . The estimates of reserves and grade made by constructing area of influence around each drill hole and by statistical method have been compared and the adequacy of the data and reliability of ...
Page 146
... Copper deposit is wide and there is considerable variation in grade along the width . The workable widths of the lodes are deter- mined by the cut - off value . Therefore , the ore zone in each drill hole was divided into a number of ...
... Copper deposit is wide and there is considerable variation in grade along the width . The workable widths of the lodes are deter- mined by the cut - off value . Therefore , the ore zone in each drill hole was divided into a number of ...
Page 184
... copper value rising upto 250 ppm , lead upto 250 ppm and zinc upto 1500 ppm in the sludge sample , and copper , lead and zinc values upto 50 ppm , 100 ppm and 1000 ppm respectively in the core samples ( amphibolite ) . The limonitised ...
... copper value rising upto 250 ppm , lead upto 250 ppm and zinc upto 1500 ppm in the sludge sample , and copper , lead and zinc values upto 50 ppm , 100 ppm and 1000 ppm respectively in the core samples ( amphibolite ) . The limonitised ...
Contents
RECORDS | 1 |
Geology of the area around the Panchet dam reservoir district | 13 |
Lower Vindhyan Formations of Rajasthan by Balmiki Prasad | 31 |
Copyright | |
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Common terms and phrases
amphibolite average grade axial plane B-folds bands basic basin beds Bhagwanpura Bhutan Binota Shale biotite boreholes calcareous calcite carbonaceous chert chert member chlorite clay coarse grained conglomerate copper Deccan Traps deposit distribution district dolomite dolomitisation drill holes east facies fault felspar folds formation fossil Gangotri glacier Geol Geological Survey gneiss Gondwanas granite granulites grey hornblende indicate interbedded Intertrappean isopach Jangpangi Jour Khairmalia Khardeola Kundarkocha lateral moraine limestone lithological Lower Vindhyan Maldeota Maleri-Kota metamorphism metres microcline Milam Milam glacier mineralisation minerals nala occur outcrops overlies Pagladiya Panchet pelitic phosphate rock phosphate unit Phuntsholing phyllite plagioclase Plate present pyroxene quartz quartz veins quartzite ratio reservoir retreat river rock types Sala sample data Sand sandstone Sawa schist schistosity sedimentary sediments Series shale snout stratigraphic structures Survey of India syncline tectonic thickness Thimpu thin Trap Flow upto valley values zone