Records of the Geological Survey of India, Volume 104The Survey, 1972 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 86
... Dolerite Quartz reef Pegmatite Aplitic dykes Gneissic rocks ( Granite , aplo - granite and migmatite ) Metabasites ( Pyroxenite and amphibolite ) Base not Seen Metabasites , are represented by pyroxenite and amphibolite and rarely by ...
... Dolerite Quartz reef Pegmatite Aplitic dykes Gneissic rocks ( Granite , aplo - granite and migmatite ) Metabasites ( Pyroxenite and amphibolite ) Base not Seen Metabasites , are represented by pyroxenite and amphibolite and rarely by ...
Page 284
... Dolerite . dykes cut across the foliation of the charnockite . Kozhikode district : K. B. Nair mapped 375 sq . km . on scale 1:63 , 360 in parts of Kozhikode taluk ( 11 ° 15 ' - 25 ' : 75 ° 45 ' - 76 ° 05 ' ; 49 M / 15 , 58 A / 3 ) ...
... Dolerite . dykes cut across the foliation of the charnockite . Kozhikode district : K. B. Nair mapped 375 sq . km . on scale 1:63 , 360 in parts of Kozhikode taluk ( 11 ° 15 ' - 25 ' : 75 ° 45 ' - 76 ° 05 ' ; 49 M / 15 , 58 A / 3 ) ...
Page 290
... dolerite and basalt . The dolomites are ser- pentinised at both the contacts of the main dolerite sill , but more uni- formly and markedly ( for 4-5 m . ) at the upper contact . The minera- lisation occurs in the form of cross - fibre ...
... dolerite and basalt . The dolomites are ser- pentinised at both the contacts of the main dolerite sill , but more uni- formly and markedly ( for 4-5 m . ) at the upper contact . The minera- lisation occurs in the form of cross - fibre ...
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Common terms and phrases
abutment alignment alluvial alluvium amphibolite Andhra Pradesh aquifers Assam bands basalt basin bauxite Bihar block boreholes carried chalcopyrite charnockite clay Coalfield construction Dam Project Deccan Trap deposits depth dips district Division dolerite dolomite drill holes dykes earth dam Engineering Geology excavation exploration fault folded foliation Formation foundation geochemical geohydrological Geol geological mapping Geological Survey Geologists Jr Geophysical Ghosh gneiss Gondwana grade granite gneiss graphite groundwater grouting Gujarat hard rock Hydel Project indicated investigation irrigation joints Laboratory laterite limestone located logging Madhya Pradesh metres million tonnes mineralisation minerals Mysore occur Orissa pegmatite phosphorite phyllites power house pyrite quartz veins quartzite Rajasthan Region reservoir rock types S/Shri samples sand sandstone scale schist seams sediments shales shear zones Shri Singh Siwaliks spillway strike length structure studies Survey of India taluk thick tion trending tubewells tunnel Udaipur district upto Uttar Pradesh valley varies Vindhyan weathered West Bengal