Records of the Geological Survey of India, Volume 114, Part 5The Survey, 1982 - 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 14
... iron and manganese distribution is guided is by local lithofacies in the ores . Manganese content is higher in silty country rocks and iron con- tent is more in sandy subfacies of the manganop- hyllite horizon . ( 4 ) No deposits are ...
... iron and manganese distribution is guided is by local lithofacies in the ores . Manganese content is higher in silty country rocks and iron con- tent is more in sandy subfacies of the manganop- hyllite horizon . ( 4 ) No deposits are ...
Page 15
... iron and manganese are known to be transported in rivers , both as true solutions and also as absorbed compounds of organic and clay particles ( Sapozhnikov , 1967 ) . If the organic matter and the low valency ions survive oxidation ...
... iron and manganese are known to be transported in rivers , both as true solutions and also as absorbed compounds of organic and clay particles ( Sapozhnikov , 1967 ) . If the organic matter and the low valency ions survive oxidation ...
Page 52
... iron oxide , The grade of metamorphism of the Cuddapah sediments is of the lower order of the green - schist facies ( Turner and Verhoogen , p.533 ) where chlorite , muscovite and magnetite are developed . Magnetite ( idiomorphic ) is ...
... iron oxide , The grade of metamorphism of the Cuddapah sediments is of the lower order of the green - schist facies ( Turner and Verhoogen , p.533 ) where chlorite , muscovite and magnetite are developed . Magnetite ( idiomorphic ) is ...
Contents
A genetic model for the Sandur manganese ores RN Mishra | 10 |
A note on the intertrappean stratigraphy of Gandhari Kamareddi and Ramayampet areas Nizamabad 19 | 19 |
On the high grade schistose rocks equivalent to the Sargur schist complex in Kasaragod taluk | 31 |
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alteration Andhra Pradesh anorthosite anorthositic rocks apatite Archaean ascomata Attapadi Barakar Formation bauxite bauxite deposits belt biotite borehole Cannanore Cannanore district charnockite Chlorite chrysoberyl clay coal seams coal-sand ratio colour contours corundum Cuddapah Basin diopside emerald Ephesite facies feldspar fibrous quartz foliation fossil gabbro garnet garnetiferous sillimanite gneiss gem tracts gemstones Geol Surv Ind Geological Survey gneiss grains granite granulite green high grade hornblende idiomorphic magnetite crystals Intertrappean bed iolite iron isopach Jour Geol Kabbani Karnataka Kerala Krishna kyanite laterite lignite lineament lithofacies lithological magnetite manganese Margarite massif metamorphism migmatite minerals moonstone Mysore Nair number of coal occur ostiole pegmatite Perinthatta plagioclase planation surfaces pollen pyroxene quartz quartzite Ramanujam ratio map regional ruby samples sand Sandur sapphire Schist sedimentary sediments sillimanite South southern strand plain stratiform stratigraphic Survey of India taluk Tamil Nadu tectonic Tertiary thickness trend upto Warkalli Wynad zircon