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. |
From inside the book
Results 1-3 of 26
Page 194
... weir site , penstock route and powerhouse site : The foundation media is generally massive to blocky . Four prominent shear zones were observed in the weir site and powerhouse site which are trending in , 1. E - W , width 20 to 40cm ...
... weir site , penstock route and powerhouse site : The foundation media is generally massive to blocky . Four prominent shear zones were observed in the weir site and powerhouse site which are trending in , 1. E - W , width 20 to 40cm ...
Page 214
... weir across the Thuvallar river ( tributary of Perinjan kutti river which in turn joins the Periyar river ) in Idukki district of Kerala . The components of the Scheme include the dam , forebay , surface penstock and surface powerhouse ...
... weir across the Thuvallar river ( tributary of Perinjan kutti river which in turn joins the Periyar river ) in Idukki district of Kerala . The components of the Scheme include the dam , forebay , surface penstock and surface powerhouse ...
Page 219
... weir axis and the master joints perpendicular to the weir transects them resulting in the formation of wedges and failure of large rock blocks along such wedges is anticipated . This is perhaps the reason for the small ( 3 to 4m deep ) ...
... weir axis and the master joints perpendicular to the weir transects them resulting in the formation of wedges and failure of large rock blocks along such wedges is anticipated . This is perhaps the reason for the small ( 3 to 4m deep ) ...
Contents
ANDHRA PRADESH | 1 |
Quaternary Geology | 9 |
Project National Geochemica Mapping NGCM | 16 |
Copyright | |
8 other sections not shown
Other editions - View all
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