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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Page 61
... zone of maximum facies variation and , therefore , represents the zone of tectonic hinge . To the north of this hinge , there is a progressive decrease in the phosphate rock content , but the rate of facies change is low . Similarly the ...
... zone of maximum facies variation and , therefore , represents the zone of tectonic hinge . To the north of this hinge , there is a progressive decrease in the phosphate rock content , but the rate of facies change is low . Similarly the ...
Page 71
... zone with restricted circulation and un- dulatory floor topography . ( c ) The absence of the rich zones of phosphate rock in the Sir- mur district , is principally due to the presence of facies , similar to those found beyond the hinge ...
... zone with restricted circulation and un- dulatory floor topography . ( c ) The absence of the rich zones of phosphate rock in the Sir- mur district , is principally due to the presence of facies , similar to those found beyond the hinge ...
Page 146
... zone was around 90 % . As mentioned earlier , the zone of mineralisation in Rakha Mines 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 ...
... zone was around 90 % . As mentioned earlier , the zone of mineralisation in Rakha Mines 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 ...
Contents
RECORDS | 1 |
Geology of the area around the Panchet dam reservoir district | 9 |
Lower Vindhyan Formations of Rajasthan by Balmiki Prasad | 31 |
9 other sections not shown
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Common terms and phrases
amphibolite average grade axial plane B-folds bands basin beds Bhagwanpura Bhutan biotite boreholes calcareous calcite carbonaceous chert chert member chlorite clay coarse grained conglomerate copper Deccan Traps deposit distribution district dolerite dolomite dolomitisation drill holes dykes east facies fault felspar folds foliation formation Gangotri glacier Geol Geological Survey gneiss Gondwanas granite granulites grey Himalaya hornblende indicate interbedded Intertrappean isopach Jangpangi Jour Khairmalia Khardeola Kundarkocha lateral moraine limestone lithological Lower Vindhyan Maldeota Maleri-Kota metamorphism metres Milam glacier mineralisation minerals nala Nimbahera occur outcrops overlies Pagladiya Panchet pelitic phosphate rock phosphate unit Phuntsholing phyllite plagioclase Plate Pradesh present pyroxene quartz quartz veins quartzite ratio reservoir river rock types sample data Sand sandstone Sawa schist schistosity sedimentary sediments Series shale snout stratigraphic structures Surv Survey of India syncline tectonic thickness Thimpu thin Trap Flow upto valley values zone