Records of the Geological Survey of India, Volume 139, Part 5The Survey, 2006 - 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 iv
... stage investigations were carried out where in essentially surface and subsurface information were evaluated to arrive at economic lay out of the project and to provide unambiguous design inputs to render construction activities smooth ...
... stage investigations were carried out where in essentially surface and subsurface information were evaluated to arrive at economic lay out of the project and to provide unambiguous design inputs to render construction activities smooth ...
Page 146
... stages i.e. , up to T.B.L. +230 m in the first stage and at the final stage up to T.B.L. +248 m . Divided into 13 blocks of 30 m width , six blocks are located in the central valley portion with four blocks and three blocks on the left ...
... stages i.e. , up to T.B.L. +230 m in the first stage and at the final stage up to T.B.L. +248 m . Divided into 13 blocks of 30 m width , six blocks are located in the central valley portion with four blocks and three blocks on the left ...
Page 154
... stage may be commenced as and when the excavation reaches to RL +284 m and the final stage may be carried out after attaining the final depth of excavation , i.e. RL +277 m . Since the proposed gallery at two levels is to be lined , no ...
... stage may be commenced as and when the excavation reaches to RL +284 m and the final stage may be carried out after attaining the final depth of excavation , i.e. RL +277 m . Since the proposed gallery at two levels is to be lined , no ...
Contents
ANDHRA PRADESH | 1 |
Quaternary Geology | 9 |
Project National Geochemica Mapping NGCM | 16 |
Copyright | |
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abutment alignment amphibolite Andhra Pradesh assess bands basin bed rock biotite biotite gneiss block boreholes carried charnockite coast cut-off trench depth district dolerite drilled dunes dyke earth dam enclaves excavation exposed field season folds foliation Formation foundation fresh rock garnet Geochemical Mapping geological mapping GEOTECHNICAL INVESTIGATION gneiss gold grained granite granite gneiss granitoids granodiorite granulite gravity grouting holes hornblende indicated intrusive Item joints Karnataka Kerala Khondalite kimberlite laterite limestone lithounits located lugeons mafic metabasalt migmatite mineralisation minerals moderate mylonite NNW-SSE NW-SE occur overburden pegmatite penstock permeability tests phyllite powerhouse project authorities proposed pyroxene quartz quartz veins quartzite reservoir river samples were collected sand schist belt shale shear zone shotcrete slope soil Specialised Thematic Mapping spillway STAGE GEOTECHNICAL stream sediment samples strike structure studies sulphide surface Tamil Nadu thick toposheet traverse trending tsunami ultramafic upto values varying vertical weathered weir width