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 30
... Quartz commonly occurs as irregular small grains , at places showing micropegmatitic inter- growth with plagioclase ( labrodorite ) . Iron oxides ( magnetite and ilmenite , at places altered to leucoxene ) occur as granular aggregates ...
... Quartz commonly occurs as irregular small grains , at places showing micropegmatitic inter- growth with plagioclase ( labrodorite ) . Iron oxides ( magnetite and ilmenite , at places altered to leucoxene ) occur as granular aggregates ...
Page 143
... quartz mica greisens . The stratigraphic succession worked out for the area is given below : Alluvium Quaternary ¡ Laterite Quartz veins . Tourmaline / Quartz - mica Intrusives Sakoli Group greisen , locale of tungsten mineralisation ...
... quartz mica greisens . The stratigraphic succession worked out for the area is given below : Alluvium Quaternary ¡ Laterite Quartz veins . Tourmaline / Quartz - mica Intrusives Sakoli Group greisen , locale of tungsten mineralisation ...
Page 145
... quartz veins , free of wolframite , in which scheelite occurs as fine specks and small stringers . The main gangue mineral is quartz followed by tourmaline The other associated minerals are chlorite , muscovite , limonite , pyrite ...
... quartz veins , free of wolframite , in which scheelite occurs as fine specks and small stringers . The main gangue mineral is quartz followed by tourmaline The other associated minerals are chlorite , muscovite , limonite , pyrite ...
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