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 57
... unit . The chert member can further be subdivided broadly into two informal unit , viz an upper Phosphate unit ( consisting of phosphate rock , with or without shale and / or chert alternations ) , and a lower Chert unit ( comprising ...
... unit . The chert member can further be subdivided broadly into two informal unit , viz an upper Phosphate unit ( consisting of phosphate rock , with or without shale and / or chert alternations ) , and a lower Chert unit ( comprising ...
Page 104
... units and is confined mostly towards the eastern and western ends of the Sala traps . Contact between the middle and upper flow - units is marked by several metres of alluvium of the Betwa . Thickness of the youngest flow - unit as ...
... units and is confined mostly towards the eastern and western ends of the Sala traps . Contact between the middle and upper flow - units is marked by several metres of alluvium of the Betwa . Thickness of the youngest flow - unit as ...
Page 106
... unit . Plagioclase felspars could not be determined due to the highly altered ( sericitisation far more than kaolinisation ) nature of the trap of the middle flow - unit . Pyroxenes , which are repre- sented by augites , do not ...
... unit . Plagioclase felspars could not be determined due to the highly altered ( sericitisation far more than kaolinisation ) nature of the trap of the middle flow - unit . Pyroxenes , which are repre- sented by augites , do not ...
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