Records of the Geological Survey of India, Volume 94The Survey, 1959 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 249
... ore bands are closely associated with lithomargic layers consisting of quartz and white clay which also occur as ... manganese . This rock sometimes grades into highly siliceous manganese - ore with manganese content of 20-30 per cent ...
... ore bands are closely associated with lithomargic layers consisting of quartz and white clay which also occur as ... manganese . This rock sometimes grades into highly siliceous manganese - ore with manganese content of 20-30 per cent ...
Page 250
... ore . Both these varieties are cut across by fine veins of metallic grey manganese - ore which in turn are cut by dull black veinlets . At places quartz is replaced by manganese - ore along cracks , sometimes cutting right across the ...
... ore . Both these varieties are cut across by fine veins of metallic grey manganese - ore which in turn are cut by dull black veinlets . At places quartz is replaced by manganese - ore along cracks , sometimes cutting right across the ...
Page 259
... manganese- ores occur as nodules and disseminations in kaolin - rich manganiferous khondalites . DEPOSITS NORTH OF NISHKHAL Kinchkhal . - About one kilometre south - west ... manganese PART 2 ] 259 MURTHY & GOKUL Manganese - ore of Kalahandi.
... manganese- ores occur as nodules and disseminations in kaolin - rich manganiferous khondalites . DEPOSITS NORTH OF NISHKHAL Kinchkhal . - About one kilometre south - west ... manganese PART 2 ] 259 MURTHY & GOKUL Manganese - ore of Kalahandi.
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Common terms and phrases
Ajanta Caves amphibole amphibole bearing quartzites amygdaloidal assemblage Balasore Balasore coast basalts beds biotite calc-silicate rocks calcite cent chambers chondrules Coarse colour convolute laminations Cretaceous crystals Deccan Traps dipping district dolerites dune sands dykes east enstatite felspar ferruginous Figured specimen flows folds foraminifera formations G.S.I. Type garnet Genus Geol Geological Geologist Gir forest grade grains granites heavy mineral hematite hills hornblende ilmenite intergrowth kilometres kyanite length Lenticulina limestone magnetite manganese manganese content manganiferous khondalite Marginulina massive trap meta-sediments metamorphism meteorite metres metres long metres wide nala Nishkhal north-west occur old dunes olivine opaques Orissa outcrop phenocrysts plagioclase porphyritic porphyritic trap pyroxenes quartz quartzites Rajasthan Reuss ridge rutile samples sand dunes Sastry schistosity sediments shales siliceous sillimanite Soft vesicular species Subarnarekha river Surv sutures thickness thin trend Trichinopoly Utatur stage veins vesicles vesicular trap width zircon