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 57
... veins and oxidised sulphides . The wall rock alteration in the form of sericitisation , chloritisation and carbonatisation is more prominent . Further southern strike continuity of auriferous zone ( up to 2.95 ppm Au over 2.00 m ) for a ...
... veins and oxidised sulphides . The wall rock alteration in the form of sericitisation , chloritisation and carbonatisation is more prominent . Further southern strike continuity of auriferous zone ( up to 2.95 ppm Au over 2.00 m ) for a ...
Page 81
... veins Monzonite - Charnockite Granite / quartz syenite ( AMGC ) Complex Anorthosite / gabbroic anorthosite- Grey ... veins ± allanite ± muscovite measuring upto 20-30 m length and 5 m width are seen along a few fault / shear zones . It ...
... veins Monzonite - Charnockite Granite / quartz syenite ( AMGC ) Complex Anorthosite / gabbroic anorthosite- Grey ... veins ± allanite ± muscovite measuring upto 20-30 m length and 5 m width are seen along a few fault / shear zones . It ...
Page 126
... vein at Edathil and another 200 m long with 2- 4 m wide quartz veins at the north of Kazhukathur have yielded gold values in the range of 0.07 - 128 ppm and 0.05 - 2.13 ppm respectively . Gold deposits in the Attapadi Valley are a ...
... vein at Edathil and another 200 m long with 2- 4 m wide quartz veins at the north of Kazhukathur have yielded gold values in the range of 0.07 - 128 ppm and 0.05 - 2.13 ppm respectively . Gold deposits in the Attapadi Valley are a ...
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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