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 19
... quartz vein along the NE - SW fault zone gave Au values upto 420 ppb . Tumukunta Block The area comprises BIF , meta - acid and metabasic volcanics , quartz - muscovite- sericite sillimanite schist , intruded by granitoids , pegmatites , ...
... quartz vein along the NE - SW fault zone gave Au values upto 420 ppb . Tumukunta Block The area comprises BIF , meta - acid and metabasic volcanics , quartz - muscovite- sericite sillimanite schist , intruded by granitoids , pegmatites , ...
Page 20
... quartz - mica schist , metabasalts , granitoids , quartz reefs , pegmatites and basic dykes . The quartz reef , which yielded interesting gold values , occurs discontinuously along with the N50 ° E - S50 ° W trending sulphide bearing ...
... quartz - mica schist , metabasalts , granitoids , quartz reefs , pegmatites and basic dykes . The quartz reef , which yielded interesting gold values , occurs discontinuously along with the N50 ° E - S50 ° W trending sulphide bearing ...
Page 287
... quartz , forms the basal unit of the Nagari Quartzite . A densely packed medium to fine - grained quartz - arenite showing bimodal sorting overlies the conglomerate . Quartz ( ~ 95 % ) with subordinate altered feldspar and opaques is ...
... quartz , forms the basal unit of the Nagari Quartzite . A densely packed medium to fine - grained quartz - arenite showing bimodal sorting overlies the conglomerate . Quartz ( ~ 95 % ) with subordinate altered feldspar and opaques is ...
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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