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 133
... reach and nil to 85 lugeons in the proposed barrage reach . The nature of the overburden material including kankar , sands and clay with calc tufa in the foundation of the dam is highly pervious and unpredictable as foundation media ...
... reach and nil to 85 lugeons in the proposed barrage reach . The nature of the overburden material including kankar , sands and clay with calc tufa in the foundation of the dam is highly pervious and unpredictable as foundation media ...
Page 137
... reach from R.D.0.6 to 1.2 km while in the remaining reach , this zone is relatively less . Weathered bed rock present underlies the highly weathered and disintegrated rock underlain by fresh rock . The rock type predominantly present in ...
... reach from R.D.0.6 to 1.2 km while in the remaining reach , this zone is relatively less . Weathered bed rock present underlies the highly weathered and disintegrated rock underlain by fresh rock . The rock type predominantly present in ...
Page 219
... reach between R7 to R11 is dissected . by nalas or small streams and these stream crossing areas are to be negotiated by providing an aqueduct by design . In this reach the hill slope is steeper and > 45 ° and slide debris with small to ...
... reach between R7 to R11 is dissected . by nalas or small streams and these stream crossing areas are to be negotiated by providing an aqueduct by design . In this reach the hill slope is steeper and > 45 ° and slide debris with small to ...
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