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 40
... Tuff : Lapilli tuffs contain fragments exhibiting almost similar lithological variations as in breccias . These are set in a fine ash - like or clayey matrix . It is usually observed that in most samples of lapilli tuff glassy fragments ...
... Tuff : Lapilli tuffs contain fragments exhibiting almost similar lithological variations as in breccias . These are set in a fine ash - like or clayey matrix . It is usually observed that in most samples of lapilli tuff glassy fragments ...
Page 43
... tuffs generally contain fragments of different types , however , depending on the nature of dominant fragmentary material , they have been designated as crystal tuff , lithic tuff , vitric tuff etc. A normal tuffaceous rock , commonly ...
... tuffs generally contain fragments of different types , however , depending on the nature of dominant fragmentary material , they have been designated as crystal tuff , lithic tuff , vitric tuff etc. A normal tuffaceous rock , commonly ...
Page 50
... tuff , lithic tuff , palagonite tuff , lapilli tuff etc. Pyroclastic rocks , at times , exhibit mixed characters of both igneous and sedimentary nature . The megascopic and microscopic charac- ters of the pyroclastic rocks suggest that ...
... tuff , lithic tuff , palagonite tuff , lapilli tuff etc. Pyroclastic rocks , at times , exhibit mixed characters of both igneous and sedimentary nature . The megascopic and microscopic charac- ters of the pyroclastic rocks suggest that ...
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