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 40
... Migmatites , Quartzo - feldspathic gneiss / granite gneiss / Younger Intrusives Yediyur - Karighatta- Kunigal Schist ... migmatite are delineated . There are other varieties of gneisses , namely amphibolite gneiss and para gneiss , which ...
... Migmatites , Quartzo - feldspathic gneiss / granite gneiss / Younger Intrusives Yediyur - Karighatta- Kunigal Schist ... migmatite are delineated . There are other varieties of gneisses , namely amphibolite gneiss and para gneiss , which ...
Page 80
... Migmatite Complex . The Intrusives include anorthosite / gabbroic anorthosite ( A ) , monzonite ( M ) , charnockite ( C ) and granite / quartz syenite ( G ) . These four rock types together constitute the AMGC Complex . All the above ...
... Migmatite Complex . The Intrusives include anorthosite / gabbroic anorthosite ( A ) , monzonite ( M ) , charnockite ( C ) and granite / quartz syenite ( G ) . These four rock types together constitute the AMGC Complex . All the above ...
Page 81
... Migmatite Complex gneiss , Calc gneiss Meta - sedimentary Pyroxene granulite Group Quartzite + diopside Basement Not Exposed The Meta - sedimentary Group represents high- grade metamorphic rocks of impure arenaceous , marl , calcareous ...
... Migmatite Complex gneiss , Calc gneiss Meta - sedimentary Pyroxene granulite Group Quartzite + diopside Basement Not Exposed The Meta - sedimentary Group represents high- grade metamorphic rocks of impure arenaceous , marl , calcareous ...
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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