Records of the Geological Survey of India, Volume 113, Part 6The Survey, 1984 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
From inside the book
Results 1-3 of 26
Page 30
... noticed . Quartz is at times surrounded by later quartz , showing optical discontinuity . Perthite , orthoclase and plagioclase are the feldspars , occurring in sub- ordinate amount ( 10 % ) as angular to subangular grains . They also ...
... noticed . Quartz is at times surrounded by later quartz , showing optical discontinuity . Perthite , orthoclase and plagioclase are the feldspars , occurring in sub- ordinate amount ( 10 % ) as angular to subangular grains . They also ...
Page 54
... noticed as phenocrysts in hand specimens , but its presence as phenocrysts is indicated by shining reddish brown flakes of iddingsite , as in flow Bu - 8 . In most porphyritic flows the plagioclase pheno- crysts measure upto a maximum ...
... noticed as phenocrysts in hand specimens , but its presence as phenocrysts is indicated by shining reddish brown flakes of iddingsite , as in flow Bu - 8 . In most porphyritic flows the plagioclase pheno- crysts measure upto a maximum ...
Page 110
... noticed by the authors in the Sandstone of Kaimur Group ( Vindhyan Supergroup ) exposed west of Besla in Mandasaur district , Madhya Pradesh . Amongst the most significant biogenic structure are the worm burrows ( Photo 1 ) , which are ...
... noticed by the authors in the Sandstone of Kaimur Group ( Vindhyan Supergroup ) exposed west of Besla in Mandasaur district , Madhya Pradesh . Amongst the most significant biogenic structure are the worm burrows ( Photo 1 ) , which are ...
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 |
3 other sections not shown
Other editions - View all
Common terms and phrases
Abujhmar alluvium assemblages augite basalt flows basin Bastar biotite block Bombay Island bore holes brown Buldana calcite charnockites chert cherty phosphorite chlorite clay clayey clinopyroxene conglomerate crystals Deccan Trap deposits dips district drainage erosional exhibit felspar formation fossil fragments Geol geomorphic glass gneisses grained Granite Gneiss Granulite Complex granulites greisens grey groundmass Group Gundul indicated Jhabua Kuhi laterite lava leptynites limestone Madhya Pradesh Maharashtra Maspur metasediments migmatite minerals Narmada Valley NW-SE occur olivine opaque oxides palagonite pebbles phenocrysts phosphatic phosphorite pigeonite plagioclase Plate porphyritic present pyroclastic pyroxene quartz quartzite Quaternary region river rock samples sand sandstone scarp schist seam sedimentary sediments sequence shale silt siltstone slope stream length stromatolites sub-surface surface Surv Survey of India Tapti tectonic terraces thick thin tourmaline trending tuff tungsten mineralisation Unconformity unit upto Vaghur varies vesicles vesicular volcanic wolframite zeolites