Records of the Geological Survey of India, Volume 139, Part 5The Survey, 2006 - 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 84
... biotite - sillimanite gneiss respectively . Quartzite occurs as a series of bands , in the form of rootless folds , and occupy hilltops / slopes overlying the mafic granulite . The repetition of quartzite bands is due to faulting ...
... biotite - sillimanite gneiss respectively . Quartzite occurs as a series of bands , in the form of rootless folds , and occupy hilltops / slopes overlying the mafic granulite . The repetition of quartzite bands is due to faulting ...
Page 93
... biotite . Pyroxene granulite is composed of quartz - plagioclase - orthopyroxene clinopyroxene hornblende biotite . Quartzofeldspathic gneiss essentially consists of quartz and K - feldspar with occasional garnets . All these mineral ...
... biotite . Pyroxene granulite is composed of quartz - plagioclase - orthopyroxene clinopyroxene hornblende biotite . Quartzofeldspathic gneiss essentially consists of quartz and K - feldspar with occasional garnets . All these mineral ...
Page 264
... biotite schist ± staurolite represent the metapelites . Synkinematic diapiric intrusions of biotite granite and hornblende - biotite tonalite / granodiorite are noticed on either side of the southern part of NSB covered during this ...
... biotite schist ± staurolite represent the metapelites . Synkinematic diapiric intrusions of biotite granite and hornblende - biotite tonalite / granodiorite are noticed on either side of the southern part of NSB covered during this ...
Contents
ANDHRA PRADESH | 1 |
Quaternary Geology | 9 |
Project National Geochemica Mapping NGCM | 16 |
Copyright | |
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abutment alignment amphibolite Andhra Pradesh assess bands basin bed rock biotite biotite gneiss block boreholes carried charnockite coast cut-off trench depth district dolerite drilled dunes dyke earth dam enclaves excavation exposed field season folds foliation Formation foundation fresh rock garnet Geochemical Mapping geological mapping GEOTECHNICAL INVESTIGATION gneiss gold grained granite granite gneiss granitoids granodiorite granulite gravity grouting holes hornblende indicated intrusive Item joints Karnataka Kerala Khondalite kimberlite laterite limestone lithounits located lugeons mafic metabasalt migmatite mineralisation minerals moderate mylonite NNW-SSE NW-SE occur overburden pegmatite penstock permeability tests phyllite powerhouse project authorities proposed pyroxene quartz quartz veins quartzite reservoir river samples were collected sand schist belt shale shear zone shotcrete slope soil Specialised Thematic Mapping spillway STAGE GEOTECHNICAL stream sediment samples strike structure studies sulphide surface Tamil Nadu thick toposheet traverse trending tsunami ultramafic upto values varying vertical weathered weir width