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 173
... thick soil which in turn is underlain by granite . The granite is weathered at the top 6 to 20 m thickness below which fairly fresh granite occurs . It is very hard , massive in general and blocky at places at the tunnel grade and may ...
... thick soil which in turn is underlain by granite . The granite is weathered at the top 6 to 20 m thickness below which fairly fresh granite occurs . It is very hard , massive in general and blocky at places at the tunnel grade and may ...
Page 228
... thick vegetation and overburden material . In the left flank the thickness of overburden varies from 11 m to 13.50 m , whereas at the right flank it is about 7 m to 7.50 m . In this alignment the dam length and overburden thickness is ...
... thick vegetation and overburden material . In the left flank the thickness of overburden varies from 11 m to 13.50 m , whereas at the right flank it is about 7 m to 7.50 m . In this alignment the dam length and overburden thickness is ...
Page 231
... thick overburden and also of the possibility of failure of slope during heavy rain . Present forebay site also has thick overburden of about 20 m . In view of this , detailed study conducted around the forebay site revealed the presence ...
... thick overburden and also of the possibility of failure of slope during heavy rain . Present forebay site also has thick overburden of about 20 m . In view of this , detailed study conducted around the forebay site revealed the presence ...
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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