Records of the Geological Survey of India, Volume 123, Part 6The Survey, 1990 - 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 20
... direction . The porphyritic flow , overlying the uneven Gondwana basement has widespread continuity . Two megapor- phyritic horizons identified at the base of Group ' F ' and ' G ' can be used as marker horizons for the purpose of ...
... direction . The porphyritic flow , overlying the uneven Gondwana basement has widespread continuity . Two megapor- phyritic horizons identified at the base of Group ' F ' and ' G ' can be used as marker horizons for the purpose of ...
Page 168
... directions . The predominant set traverses in east- west direction which is parallel to the Narinada river . Some dykes also cut across the river in NE - SW direction . The dykes range in length from few tens of metres to almost 3 km ...
... directions . The predominant set traverses in east- west direction which is parallel to the Narinada river . Some dykes also cut across the river in NE - SW direction . The dykes range in length from few tens of metres to almost 3 km ...
Page 187
... direction which is the tectonic impress of the area . The cut - off trench ( C. O. T. ) for the earth dam section between RD 40 and 80 m on left flank was under excavation and porphyritic basalt was exposed in it . At RD 40 m , a 3.8 to ...
... direction which is the tectonic impress of the area . The cut - off trench ( C. O. T. ) for the earth dam section between RD 40 and 80 m on left flank was under excavation and porphyritic basalt was exposed in it . At RD 40 m , a 3.8 to ...
Contents
GEOLOGICAL MAPPING | 1 |
II | 12 |
Economic Geology Division | 109 |
Copyright | |
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Common terms and phrases
aa flow alluvium AMRAVATI DISTRICT bands basalt flows basin bed rock block bole borehole Chandi Formation chert clay coarse compound pahoehoe comprising conglomerate Deccan Trap delineated deposits depth dips DISTRICT OF MADHYA DISTRICT OF MAHARASHTRA dolomite drilling ENE-WSW Engineering Geology Division exposed fault ferruginous flow group geochemical Geologist Jr geophysical gneiss Gondwana gradient granite highly porphyritic horizon indicate intercalations Intertrappean intrusive Jabalpur joints Lameta Laterite lava flows lava pile limestone located Madhya Pradesh MADHYA PRADESH Code MAHARASHTRA Code medium grained metabasic metasediments mineral mineralisation moderately porphyritic mylonitic Nagpur nala non-porphyritic NW-SE occur olivine pahoehoe pahoehoe flow pegmatites phenocrysts phyllite plagioclase porphyritic Proterozoic Pune purple quartz quartz veins quartzite Quaternary Raipur Raipur District Regional Geology Division reservoir river samples sandstone scale schist sediments sequence shale sparsely porphyritic spillway sq km stratigraphic stromatolitic structure studies systematic geological mapping TEHSILS thick tholeiitic toposheet trending Unconformity Upper upto vesicular