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 39
... hornblende schists , talc - actinolite- chlorite schist , BIF , quartzite , meta - ultramafites and metapelites . Intrusive hornblende - biotite granites are coarse to porphyritic and well foliated . A very prominent 1-2 km wide shear ...
... hornblende schists , talc - actinolite- chlorite schist , BIF , quartzite , meta - ultramafites and metapelites . Intrusive hornblende - biotite granites are coarse to porphyritic and well foliated . A very prominent 1-2 km wide shear ...
Page 45
... hornblende granite and 3 porphyritic hornblende - biotite granite . Biotite granite , the most abundant unit in the study area , is medium - grained , equigranular , deformed and of monzogranite in composition . Another variation of ...
... hornblende granite and 3 porphyritic hornblende - biotite granite . Biotite granite , the most abundant unit in the study area , is medium - grained , equigranular , deformed and of monzogranite in composition . Another variation of ...
Page 85
... hornblende granite gneiss containing xenoliths of amphibolite and banded magnetite quartzite . Amphibolite occurs as pods , lenses , angular blocks and thin streaks / bands within the hornblende granite gneiss with a sharp contact . The ...
... hornblende granite gneiss containing xenoliths of amphibolite and banded magnetite quartzite . Amphibolite occurs as pods , lenses , angular blocks and thin streaks / bands within the hornblende granite gneiss with a sharp contact . The ...
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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