Records of the Geological Survey of India, Volume 124, Part 6The Survey, 1991 - 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 125
... rock could not be traced for more than 100 m and staurolite bearing rock for more than 200 m along the strike , though different boreholes drilled along two traverse lines 100 m apart , intersected the mineralisation as well as the host ...
... rock could not be traced for more than 100 m and staurolite bearing rock for more than 200 m along the strike , though different boreholes drilled along two traverse lines 100 m apart , intersected the mineralisation as well as the host ...
Page 163
... rock - mass map was prepared on 1 : 350 scale , for an area of 3,663 sq m to evaluate the rock mass conditions at depth to advise on the design of slopes for the power house pit and to ensure stability of slopes . The rock mass ...
... rock - mass map was prepared on 1 : 350 scale , for an area of 3,663 sq m to evaluate the rock mass conditions at depth to advise on the design of slopes for the power house pit and to ensure stability of slopes . The rock mass ...
Page 171
... rock cover for better arch action for the stability and durability . It is felt that at least 15 to 16 m of good basalt rock cover is necessary above the crown for the durability of the tunnel . Where adequate rock cover is not ...
... rock cover for better arch action for the stability and durability . It is felt that at least 15 to 16 m of good basalt rock cover is necessary above the crown for the durability of the tunnel . Where adequate rock cover is not ...
Contents
GEOLOGICAL MAPPING 1 to 106 | 13 |
MINERAL INVESTIGATIONS 107 to 154 | 113 |
GEOTECHNICAL INVESTIGATIONS 155 to | 169 |
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aa flows Alluvium bands basalt flows basemetal basin Bastar district Bhander block borehole chert clay compound pahoehoe flows comprises Deccan Trap Denwa deposits depth drilling dykes Economic Geology Division ENE-WSW exposed faults felspar field season flow groups fossils fragmentary top geochemical Geologist Jr geophysical gneiss Gondwana gradient holes indicate intrusive Jabalpur joints Lameta laterite lava pile limestone lineament Madhya Pradesh MADHYA PRADESH Code MAHARASHTRA MAHARASHTRA Code massive medium grained metabasic mineralisation minerals moderately porphyritic Nagpur Narmada non-porphyritic occur pahoehoe Parsora pegmatites phenocrysts phyllite plagioclase porphyritic Precambrian Project pyrite quartz quartz reefs quartz veins quartzite red bole Regional Geology Division Rewa river rock Sakoli samples sandstone Sausar scale scheelite schist sediments sequence shale shear zone sparsely porphyritic sq km stratigraphic structure studies Supergroup Systematic geological mapping thick Tiki tion toposheet trending Unconformity Upper upto vesicular Vindhyan Supergroup volcanic Yavatmal YAVATMAL DISTRICTS