Records of the Geological Survey of India, Volume 111, Part 2The Survey, 1976 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 114
Geological Survey of India. IRON FORMATION The iron rich sediments of Iron - ore Group , which represent the transitional member between the volcanic and the sedimentary clastic facies constitutes the iron . formation . It bears a ...
Geological Survey of India. IRON FORMATION The iron rich sediments of Iron - ore Group , which represent the transitional member between the volcanic and the sedimentary clastic facies constitutes the iron . formation . It bears a ...
Page 115
... iron ore , as also the hematite rock , on or near the surface is composed mainly of oxidic minerals of iron ( 80 to 90 % on the average ) , with subordinate amounts of iron rich clays and little or no free silica . A large part of the ...
... iron ore , as also the hematite rock , on or near the surface is composed mainly of oxidic minerals of iron ( 80 to 90 % on the average ) , with subordinate amounts of iron rich clays and little or no free silica . A large part of the ...
Page 117
... iron ore originated during Precam- brian times . 5. Effect of metamorphism is not significant in the Iron ore Group . 6. The sedimentogenic structures ( such as bedding ) have been preserved in their original form in hematite rock . It ...
... iron ore originated during Precam- brian times . 5. Effect of metamorphism is not significant in the Iron ore Group . 6. The sedimentogenic structures ( such as bedding ) have been preserved in their original form in hematite rock . It ...
Contents
Structure and Metamorphism of the Area Between Haveri and Ranibennur Dharwar District Karnataka | 41 |
Structural Geology of Northwest Part of Hazaribagh District BiharU Prasad | 49 |
A Model for Reclassification of Precambrian Rocks of IndiaS | 57 |
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amphibolite Andaman anomaly zone aquifer Archaean axis Baratang Baruipur basalt belt Bihar borehole charnockites chlorite clays coal conglomerate copper Deccan Trap Deltaic Plain deposits depth dips district dykes facies faults ferruginous quartzite flysch folds foliation fractures geochemical Geol GEOLOGICAL MAP Geological Survey geophysical Geothermal Province gneiss Grade grained granite graphite groundwater Group hematite hematite rock horizon hot springs India indicated jaspilite Jhabua district joints Karewa Karnataka Koyna Laterite lavas lineation located lode magnetic Mandsaur district manganese metamorphism metres mineralised minerals non-coking North Tirodi occur olivine pahoehoe pahoehoe flows Pawnia phenocrysts pits plagioclase Plate plunging Precambrian quartz quartzite radiolarite region ridge river samples sand sandy schist sedimentary sediments serpentinites shale shear zone Singhbhum soil steam stratigraphic structure sulphide surface Surv Survey of India Table tectonic thermal thickness tion traverse Turamdih area Unconformity Unpublished GSI Report upto Valley vertical weathered