Records of the Geological Survey of India, Volume 98The Survey, 1970 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 51
... leaching solution . This differential leaching solution reaction , however , cannot account for the localised concentra- tion of bauxite . Besides , small patches and pebbles of bauxitic material encountered in ferruginous laterite also ...
... leaching solution . This differential leaching solution reaction , however , cannot account for the localised concentra- tion of bauxite . Besides , small patches and pebbles of bauxitic material encountered in ferruginous laterite also ...
Page 52
... leaching solution with the groundwater below . Thus a two - stage alteration of different rock types to residual bauxite has been envisaged . The first stage consists in the leaching out of the elements Na , Ca , Mg etc. , having low ...
... leaching solution with the groundwater below . Thus a two - stage alteration of different rock types to residual bauxite has been envisaged . The first stage consists in the leaching out of the elements Na , Ca , Mg etc. , having low ...
Page 63
... leaching of the country rock ( i.e. , basalt ) may have attacked the former and with consequent silication ... leaching , kaolinite and halloysite are abundant relative to gibbsite . Conversely , the greater the rate of leaching greater ...
... leaching of the country rock ( i.e. , basalt ) may have attacked the former and with consequent silication ... leaching , kaolinite and halloysite are abundant relative to gibbsite . Conversely , the greater the rate of leaching greater ...
Contents
VOLUME 98 PART | 1 |
their Origin | 16 |
The Brecciated Quartz Veins of Nurungo Hazaribagh | 40 |
Copyright | |
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alluvial deposits Alluvium alumina Aravalli Archaean Ariyalur Ariyalur group Banded Gneissic Complex Barakar Barren measures basalt basins bauxite bauxitic clay beds boreholes Boulder boundary faults chemical clay zone clayey claystone coal seams conglomerate Cretaceous cross-stratification Deccan trap district fauna felspar flowing formation forms fossiliferous fossils Geol Geological Survey glacial glauconite gneisses Gondwana grains granite granitised groundwater hematite indicate interglacial intra-basinal faults Jahazpur Kaimur kaolinite laterite lateritic gravel lateritisation leaching lignite limestone limonite lithological lithomargic clay Lower Karewas metres minerals namadicus Narmada occurs overlying parent rock pebbles Pinjor pisolites Pleistocene Pradesh present quartz quartzites Raniganj ripples Sakolis sand sandstone sandy clay sandy soil Santonian schists sedimentary sediments Semri shale silica Siwalik stage structures Surv Survey of India Talchir Tatrot tectonic terrain Tertiary sequence thickness thin trap Trichinopoly tubewells unconformity Upper valley weathering West Bokaro coalfield white clay