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 43
... containing a few slender needles and microlites of plagioclase with rare pyroxene grains . These may be nonvesicular or contain a few vesicles only . 3. Highly vesicular frothy glass , with occa- sional microlites of plagioclase . In ...
... containing a few slender needles and microlites of plagioclase with rare pyroxene grains . These may be nonvesicular or contain a few vesicles only . 3. Highly vesicular frothy glass , with occa- sional microlites of plagioclase . In ...
Page 49
... contain numerous , somewhat closely packed fragments of glass and lithic material with occasional fragments of shale and siltstone , in a matrix composed of glass , shards , dusty ash and minor proportion of ferru- ginous material . It ...
... contain numerous , somewhat closely packed fragments of glass and lithic material with occasional fragments of shale and siltstone , in a matrix composed of glass , shards , dusty ash and minor proportion of ferru- ginous material . It ...
Page 51
... contain more than 50 weight per cent of essential particles larger than the ash size . The pyroclastic beds encountered in drill holes in Bombay area , in parts , contain material in proportion as indicated above , however , when ...
... contain more than 50 weight per cent of essential particles larger than the ash size . The pyroclastic beds encountered in drill holes in Bombay area , in parts , contain material in proportion as indicated above , however , when ...
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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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