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. |
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Page 28
... altered to a clayey rock and also lateritized . In thin section , rhyolite is fine grained , inequigranular and ... altered to clays and sericite . Biotite occurs in minor amounts and is altered to chlorite . Aggregates of prismatic ...
... altered to a clayey rock and also lateritized . In thin section , rhyolite is fine grained , inequigranular and ... altered to clays and sericite . Biotite occurs in minor amounts and is altered to chlorite . Aggregates of prismatic ...
Page 30
... altered nature and consists of altered grains of plagioclase and augite within an altered groundmass consis- ting of chlorite , epidote , zoisite , sericite and calcite . Quartz commonly occurs as irregular small grains , at places ...
... altered nature and consists of altered grains of plagioclase and augite within an altered groundmass consis- ting of chlorite , epidote , zoisite , sericite and calcite . Quartz commonly occurs as irregular small grains , at places ...
Page 49
... altered to : palagonite . These fragments contain only a few vesicles , however , highly vesicular or pumice - like fragments occasionally with drawn out vesicles are also present in some samples . Lithic fragment , glass shards ...
... altered to : palagonite . These fragments contain only a few vesicles , however , highly vesicular or pumice - like fragments occasionally with drawn out vesicles are also present in some samples . Lithic fragment , glass shards ...
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 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