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- |
From inside the book
Results 1-3 of 38
Page 48
... appears similar to pyrrhotite but takes excellent polish , Reflectivity is high . Ref- lection pleochroism is very characteristic . Aniso- tropism is strong and the polarization colours are yellowish white . Mineral X This mineral ...
... appears similar to pyrrhotite but takes excellent polish , Reflectivity is high . Ref- lection pleochroism is very characteristic . Aniso- tropism is strong and the polarization colours are yellowish white . Mineral X This mineral ...
Page 49
... appears to have been exsolved . Pyrite is possibly the next 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 ...
... appears to have been exsolved . Pyrite is possibly the next 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 ...
Page 60
Geological Survey of India. all the flows . The augite appears to have started crystallising before the eruption in ... appears to have taken place either in the magma chamber or in the intertelluric stage . Rapid crystallisation took ...
Geological Survey of India. all the flows . The augite appears to have started crystallising before the eruption in ... appears to have taken place either in the magma chamber or in the intertelluric stage . Rapid crystallisation took ...
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 |
Copyright | |
3 other sections not shown
Other editions - View all
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