Records of the Geological Survey of India, Volume 122, Part 5The Survey, 1989 - 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 229
... tunnel faces A , C and E , steel supports are being erected at a spacing of 0.3 to 1 m long after excavation . After geological logging of the tunnel over a cumulative length of 948 m in the six excavation faces , rock mass ...
... tunnel faces A , C and E , steel supports are being erected at a spacing of 0.3 to 1 m long after excavation . After geological logging of the tunnel over a cumulative length of 948 m in the six excavation faces , rock mass ...
Page 335
... tunnel and beyond that a regular tunnel where adequate rock cover is available . Sub - surface explorations by means of boreholes are suggested to establish the hard rock levels along the tunnel route . A vertical hole is suggested at ...
... tunnel and beyond that a regular tunnel where adequate rock cover is available . Sub - surface explorations by means of boreholes are suggested to establish the hard rock levels along the tunnel route . A vertical hole is suggested at ...
Page 367
... tunnel is driven through charnockite , migmatised gneisses and basic granulites . The rocks have been traversed by basic and acid intrusives . The free flow , 2.25m diameter D - shaped tunnel has been aligned in a N70 ° W - S70 ° E ...
... tunnel is driven through charnockite , migmatised gneisses and basic granulites . The rocks have been traversed by basic and acid intrusives . The free flow , 2.25m diameter D - shaped tunnel has been aligned in a N70 ° W - S70 ° E ...
Contents
Quaternary Geology and Geomorphology of the area around Goguleru Creek near Bantumilli in Krishna District | 13 |
Geology of Peninsular Gneisses in parts of Nizamabad District | 27 |
Stratigraphic Drilling in the Gondwana Formations of SattupalliPakalagudem area Khammam District | 41 |
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amphibolite ANANTAPUR DISTRICT Andhra Pradesh ANDHRA PRADESH Code anomaly anorthosite Archaean axis bands bed rock biotite biotite granite block boreholes boreholes drilled charnockite charnockite gneiss clay comprises conglomerate dam alignment Deccan Trap depth Dharwar dips dolerite dolerite dykes earth dam enclaves excavated exposed fluvial folds foliation formation foundation fresh rock gabbro GEOLOGICAL MAP GEOPHYSICAL gneiss Godavari granite granite gneiss granodiorite granulite grey Idukki indicated intrusives investigation joints KARNATAKA Kerala landforms laterite left flank limestone located lode magnetite metabasalt migmatite NNW-SSE NW-SE occur overburden pegmatite Peninsular gneiss phyllite pink granite PLATE power house PROJECT proposed quartz quartz veins quartzite Raichur reservoir ridge right flank river bed rock types samples sand sandstone scale schist schist belt schistose sediments shale shear zone soil spillway sq km strike length studies suggested Supergroup surface TALUK TAMIL NADU thickness toposheet traversed trench trending ultramafic upto width