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 26
... hematite ( dehydrated limonite ) along schistosity , elimination of feldspar and incorporation of fine grains of quartz within the hematite matrix . Relict schistosity is defined by the partially altered muscovite , the flakes often ...
... hematite ( dehydrated limonite ) along schistosity , elimination of feldspar and incorporation of fine grains of quartz within the hematite matrix . Relict schistosity is defined by the partially altered muscovite , the flakes often ...
Page 99
... hematite . Some of them exhibit undulose extinction . Glauconite occurs in three distinct forms , namely , ( i ) as ... hematite which imparts a reddish tinge to it . Glauconite grains vary in size from 0.2 mm . to 0.4 mm . and this ...
... hematite . Some of them exhibit undulose extinction . Glauconite occurs in three distinct forms , namely , ( i ) as ... hematite which imparts a reddish tinge to it . Glauconite grains vary in size from 0.2 mm . to 0.4 mm . and this ...
Page 101
... hematite which imparts a red colour to the rock . The hematite has probably been formed by weathering of iron - bearing minerals . The fragments of metamorphic rocks are not affected by iron oxides 101.
... hematite which imparts a red colour to the rock . The hematite has probably been formed by weathering of iron - bearing minerals . The fragments of metamorphic rocks are not affected by iron oxides 101.
Contents
their Origin | 16 |
The Brecciated Quartz Veins of Nurungo Hazaribagh | 40 |
On the Genesis of Residual Bauxite in India by M K | 46 |
Copyright | |
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alluvial deposits Alluvium Aravalli Archaean Ariyalur Ariyalur group Barakar Barren measures basalt basins bauxite bauxitic clay beds Bengal boreholes Boulder boundary faults Ceratodus chemical clayey coal seams coiling conglomerate Cretaceous cross-stratification Deccan trap district fauna felspar ferruginous flowing formation forms fossils Geol Geological Survey glacial glauconite gneisses Gondwana grains granite granitised groundwater hematite indicate interglacial Jahazpur Kaimur kaolinite laterite lateritic gravel lateritisation leaching lignite limestone limonite lithological lithomargic clay Lower Karewas Manuscript first received metres minerals namadicus Narmada occurs overlying Panchet parent rock pebbles Pinjor pisolites Plate Pleistocene Pradesh present quartz quartzites Raniganj recorded 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 thickness thin trap tubewells uncoiling unconformity Upper valley West Bokaro coalfield white clay