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 137
... bed rock is present underlying the overburden soil . Core recoveries were in this media too very poor leading to interpretational difficulties . Because of this fact , this zone was considered as overburden in the earlier study with ...
... bed rock is present underlying the overburden soil . Core recoveries were in this media too very poor leading to interpretational difficulties . Because of this fact , this zone was considered as overburden in the earlier study with ...
Page 198
... rock to be met at shallow depth downstream of second vent of glacis spillway . Hence recommended to excavate up to ... bed rock . Examination of the cut - off trench excavations indicates that the bed rock is met at shallow depth of ...
... rock to be met at shallow depth downstream of second vent of glacis spillway . Hence recommended to excavate up to ... bed rock . Examination of the cut - off trench excavations indicates that the bed rock is met at shallow depth of ...
Page 220
... rock / bed rock is deeper on the right abutment , provision of core wall may be necessary for keying in or abutting the weir into the hill . At the left abutment , rock will be available at the end chainage , at the required elevation ...
... rock / bed rock is deeper on the right abutment , provision of core wall may be necessary for keying in or abutting the weir into the hill . At the left abutment , rock will be available at the end chainage , at the required elevation ...
Contents
ANDHRA PRADESH | 1 |
Quaternary Geology | 9 |
Project National Geochemica Mapping NGCM | 16 |
Copyright | |
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Common terms and phrases
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