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 21
... grey , pale pink to whitish pink quartzite and pale yellowish / purple siltstone / quartzite . The unconformity between the basement granite and the pink massive quartzite is marked by the presence of a conglomerate bed , which is ...
... grey , pale pink to whitish pink quartzite and pale yellowish / purple siltstone / quartzite . The unconformity between the basement granite and the pink massive quartzite is marked by the presence of a conglomerate bed , which is ...
Page 29
... grey to dark grey carbonaceous tuff with inordinate proportions of pyrite . The area in an around Mangampeta exposes a variety of white , yellow , olive green , purple , pink , grey , dark grey and jet black coloured tuff , dark bluish grey ...
... grey to dark grey carbonaceous tuff with inordinate proportions of pyrite . The area in an around Mangampeta exposes a variety of white , yellow , olive green , purple , pink , grey , dark grey and jet black coloured tuff , dark bluish grey ...
Page 81
... Grey granite + allanite Pegmatoidal granite Porphyritic granite / augen gneiss Hornblende - biotite gneiss ... grey granite carrying fine allanite ( upto 2 % ) with brown rim and grey / pink homophanous granite . Grey coarse biotite rich ...
... Grey granite + allanite Pegmatoidal granite Porphyritic granite / augen gneiss Hornblende - biotite gneiss ... grey granite carrying fine allanite ( upto 2 % ) with brown rim and grey / pink homophanous granite . Grey coarse biotite rich ...
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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