Records of the Geological Survey of India, Volume 113, Parts 5-6Government of India, 1980 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 46
... minerals in the ore - body , the textural relation- ship existing between the individual opaque minerals , the paragenetic sequence of the opaque minerais , the probable process of ore - formation and the features of alteration of the ...
... minerals in the ore - body , the textural relation- ship existing between the individual opaque minerals , the paragenetic sequence of the opaque minerais , the probable process of ore - formation and the features of alteration of the ...
Page 48
... minerals . The mineral occurs along the contact of chalcopyrite and pyrrhotite . It occurs as minute grains or in the form of threads and needles . It appears similar to pyrrhotite but takes excellent polish , Reflectivity is high . Ref ...
... minerals . The mineral occurs along the contact of chalcopyrite and pyrrhotite . It occurs as minute grains or in the form of threads and needles . It appears similar to pyrrhotite but takes excellent polish , Reflectivity is high . Ref ...
Page 49
... mineral to have been depo- sited but there is no physical contact between pyrite and pyrrhotite . Chalcopyrite is definitely younger than both pyrite and pyrrhotite as it cuts across these minerals . Valleriite ( ? ) and the mineral X ...
... mineral to have been depo- sited but there is no physical contact between pyrite and pyrrhotite . Chalcopyrite is definitely younger than both pyrite and pyrrhotite as it cuts across these minerals . Valleriite ( ? ) and the mineral X ...
Contents
Geochemical distribution of Trace Elements Over the mineralised fault zone PAGE | 1 |
Geology of parts of Abujhmar area Narainpur Tehsil Bastar district Madhya | 24 |
Geological and Petrographic Studies of the Deccan Basalt Flows | 33 |
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Common terms and phrases
Abujhmar alluvium Ambadongar anorthosite associated augite basalt flows basin beds biotite block bore holes borehole breccia Buldana calcite Charnockite chert chlorite clay clinopyroxene Deccan Trap deposits depth district drainage drilled dykes erosional exhibit exposed fault felspar fluorite folds formation fossil fragments gabbro geochemical Geol Geological Survey geomorphic glass gm/tonne gneisses grade grained granite granulites greisens grey groundmass Group Gundul hill indicated laterite lava layers limestone magnetite Maharashtra metasediments metres migmatite mineralisation minerals Narmada Valley NW-SE occurs olivine opaque phenocrysts phosphorite phyllite plagioclase Plate porphyritic present pyrite pyroclastic pyroxene quartz quartz veins quartzite Quaternary region Rhyolite river rocks samples sandstone schist seam sediments sequence shale slope spores stream stromatolites structure sub-surface sulphide surface Surv Survey of India Tapti thick thin trending tuff Unpublished GSI Report upto Vaghur varies volcanic width zone