Records of the Geological Survey of India, Volume 135, Parts 4-5Government of India, 2000 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 90
... folds defined by marly layers . Mesoscopic folds ( F ) , displayed by the garnetiferous biotite gneiss , are the most important D , structures . These folds are tight , isoclinal and southeasterly plunging , with thickened hinges and ...
... folds defined by marly layers . Mesoscopic folds ( F ) , displayed by the garnetiferous biotite gneiss , are the most important D , structures . These folds are tight , isoclinal and southeasterly plunging , with thickened hinges and ...
Page 94
... folds . The second phase of folds ( F2 ) , trending NNE- SSW / NE - SW , are open , upright and doubly plunging in nature and co - axial with F , folds . Open folds represent the latest phase of folding ( F , ) with NNE - SSE to E - W ...
... folds . The second phase of folds ( F2 ) , trending NNE- SSW / NE - SW , are open , upright and doubly plunging in nature and co - axial with F , folds . Open folds represent the latest phase of folding ( F , ) with NNE - SSE to E - W ...
Page 114
... folds within the gneisses represent the F , folds with a NE axis , then the variation in S , trends bordering the granite and the folded BIF just south of Anakkatti may represent F , fold . F , fold with N - S fold axis had produced ...
... folds within the gneisses represent the F , folds with a NE axis , then the variation in S , trends bordering the granite and the folded BIF just south of Anakkatti may represent F , fold . F , fold with N - S fold axis had produced ...
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Common terms and phrases
alignment alluvium amphibolite Andhra Pradesh Arunachal Pradesh Assam bands Basin bedrock biotite block boreholes Brahmaputra carried charnockite Chitradurga clay contour Cuddapah depth district drilled dykes east eastern excavation fault flood plain folds foliation Formation foundation fractures geoenvironmental geological mapping Geotechnical Investigation gneiss gold mineralisation gold values granite granite gneiss granulite gravity grey ground water Group hills indicated joints Karnataka Kerala khondalite kimberlite Krishna Kurnool lamproite limestone lineament located magnetic Meghalaya metabasalt migmatite mineral Mizoram NE-SW NW-SE occur pegmatite Peninsular Gneissic Complex penstock phyllite pink powerhouse Project proposed quartz quartz veins quartzite Quaternary regional river rock samples sand sandstone scale schist belt Serchhip shale shear zone slope soil southern Specialised Thematic Mapping sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment strike length structural studies sulphide surface surveys Tamil Nadu terrain thick toposheets traversed trench trending tunnel valley village weathered width के