Records of the Geological Survey of India, Volume 118, Parts 3-8government of India., 1983 - Geology 1867- includes the "Annual report of the Geological survey of India". |
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Page 2
... rocks . The rock is leucocratic with a very small amount of ferro- magnesium minerals . It is medium . to coarse grained , and porphyroblastic in in texture . The porphyroblasts are mostly composed of feldspars . Garnets have an ...
... rocks . The rock is leucocratic with a very small amount of ferro- magnesium minerals . It is medium . to coarse grained , and porphyroblastic in in texture . The porphyroblasts are mostly composed of feldspars . Garnets have an ...
Page 10
... rocks show a larger variation . The behaviour of the mineralised equivalents of the older amphibolites resembles both the types of amphibolites in respect of FeO / Fe2O3 ratio . They show wider variation of iron ratios in the host rocks ...
... rocks show a larger variation . The behaviour of the mineralised equivalents of the older amphibolites resembles both the types of amphibolites in respect of FeO / Fe2O3 ratio . They show wider variation of iron ratios in the host rocks ...
Page 51
... rocks comprising sandstone , shale , quartzite , limestone and effusive trap rock . Different sets of lineaments , fractures and master joints are is common . The region characterised by mature topography with un- dulating low to medium ...
... rocks comprising sandstone , shale , quartzite , limestone and effusive trap rock . Different sets of lineaments , fractures and master joints are is common . The region characterised by mature topography with un- dulating low to medium ...
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Common terms and phrases
aeolian aerial alluvial amphibolite bands basin belt Bihar biotite channel Charnockite chromite chromitite clay coal field concentration Denudational hill deposits developed drainage Duasini environmental erosion FAAS flood plain fluvial folds foliation forest formation gabbro Ganjam garnet Geol Geological Survey geomorphic geomorphology gneiss gold grains granite gneiss granitised amphibolite groundwater hornblende iron khondalite Kumari land landform landuse laterite Limonite lineament Manbazar Surface massive amphibolite ment mineralised minerals mining nala ND ND Noa Dihing Opx cumulate Orissa oxidation parent rocks pediplain PG elements plagioclase platinum group ppm ppm ppm Purulia district Quarry quartz quartzite Quaternary Records Volume Rohtak district Rushikulya river Sambhar Salt Lake samples sandstone schistose schistose amphibolite sediments shear zone slopes soil sq km sqkm structures Survey of India Taptapani terraces Tetla thickness tion Tirap district trend ultramafic valley varies West Bengal