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 63
... plagioclase ( An no zoning . 52-67 ) show feeble cloulding but Plagioclases are quite fresh with few grains showing minor alteration to sericite . Albite and pericline twins and also the combination of the two are common ; carlsbad twin ...
... plagioclase ( An no zoning . 52-67 ) show feeble cloulding but Plagioclases are quite fresh with few grains showing minor alteration to sericite . Albite and pericline twins and also the combination of the two are common ; carlsbad twin ...
Page 49
... plagioclase . 4. Fine to medium grained basalt exhibiting intergranular and intersertal textures with occasional phenocrysts of plagioclase and augite . 5. Fine grained basalt rich in olivine phenocrysts . 6. Basalt with needle - like ...
... plagioclase . 4. Fine to medium grained basalt exhibiting intergranular and intersertal textures with occasional phenocrysts of plagioclase and augite . 5. Fine grained basalt rich in olivine phenocrysts . 6. Basalt with needle - like ...
Page 60
... plagioclase laths and glass . matter , - Plagioclase Felspar Plagioclase ( An60 An 75 ) constitutes ; a dominant phase among the phenocrysts ( 1.0 % to 12.5 % ) and occurs in all the flows . The plagioclase phenocrysts are idiomorphic ...
... plagioclase laths and glass . matter , - Plagioclase Felspar Plagioclase ( An60 An 75 ) constitutes ; a dominant phase among the phenocrysts ( 1.0 % to 12.5 % ) and occurs in all the flows . The plagioclase phenocrysts are idiomorphic ...
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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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