Records of the Geological Survey of India, Volume 140, Part 5The Survey, 2007 - 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 55
... drilled in the area to know the subsurface behaviour of the silicified zones and their auriferous potential . The borehole GBS - 4 drilled to a depth of 338.90 m intersected feeble to moderate sulphide zones ( pyrite + arsenopyrite ) ...
... drilled in the area to know the subsurface behaviour of the silicified zones and their auriferous potential . The borehole GBS - 4 drilled to a depth of 338.90 m intersected feeble to moderate sulphide zones ( pyrite + arsenopyrite ) ...
Page 229
... drilled , the overburden thickness and dam length is also very less . The main problem in this dam site is the foliation dip which is mainly towards right abutment and slightly towards down stream . This phenomenon is not that much ...
... drilled , the overburden thickness and dam length is also very less . The main problem in this dam site is the foliation dip which is mainly towards right abutment and slightly towards down stream . This phenomenon is not that much ...
Page 230
... drilled to know the fresh rock depth at this point . Based on the fresh rock depth the tunnel intake point can be decided . SURGE AND PRESSURE SHAFT The surge is located 105 m downstream of the nala crossing ch.1610 m . The borehole drilled ...
... drilled to know the fresh rock depth at this point . Based on the fresh rock depth the tunnel intake point can be decided . SURGE AND PRESSURE SHAFT The surge is located 105 m downstream of the nala crossing ch.1610 m . The borehole drilled ...
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Common terms and phrases
abutment Additional Item amphibolite ANDHRA PRADESH bed rock biotite block boreholes boreholes drilled carried charnockite clay CONSTRUCTION STAGE GEOTECHNICAL cover Cuddapah cut off trench cut-off depth DISTRICT dolerite dolerite dyke downstream earth dam excavated exposed field season flank foliation Formation foundation fresh rock garnet garnetiferous geological mapping GEOTECHNICAL INVESTIGATION gneiss gold granite granitoids granulite gravity grey ground level hornblende indicated intrusive joints KARNATAKA KERALA Khondalite kimberlite Kumar laterite limestone lineament located magnetite migmatite mineralisation minerals moderate monzogranite NE-SW NW-SE overburden pegmatite Peninsular Gneissic Complex penstock permeability tests powerhouse project authorities proposed Puducherry pyroxene pyroxene granulite quartz quartz veins quartzite river rock types samples schist Schist belt seismic shale shear zone slope soil Specialised Thematic Mapping spillway sq km STAGE GEOTECHNICAL INVESTIGATION strike length structure studies suggested Tamil Nadu terrain thickness toposheet traversed tunnel upto values varies vertical weir width