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 211
... zones on the surface as well as in the shallow old mine workings occur in the zone of oxidation where most of the ore minerals have been oxidised and leached down to the ground water table . This is indicated by the presence of iron ...
... zones on the surface as well as in the shallow old mine workings occur in the zone of oxidation where most of the ore minerals have been oxidised and leached down to the ground water table . This is indicated by the presence of iron ...
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