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 3
... quartz grains are seen within the glassy vein . The veinlets of glassy material are found to penetrate the inter - crystal boundaries . Quartz occurs as porphyroblasts and also in the ground- mass . Rounded grains of garnets show ...
... quartz grains are seen within the glassy vein . The veinlets of glassy material are found to penetrate the inter - crystal boundaries . Quartz occurs as porphyroblasts and also in the ground- mass . Rounded grains of garnets show ...
Page 15
... quartz , chlorite and yellowish to brownish biotite . Zircon and opaques are common accessories . Ortho ... quartz veins . The granite is generally coarse - grained , non - foliated , pink to brick - red and invariably shows graphic ...
... quartz , chlorite and yellowish to brownish biotite . Zircon and opaques are common accessories . Ortho ... quartz veins . The granite is generally coarse - grained , non - foliated , pink to brick - red and invariably shows graphic ...
Page 85
... quartz - garnet - silli- manite schist / gneiss and calc granulite together comprise the khondalite group . Garnetiferous quartzite generally occurs as narrow linear bands . within the quartz - garnet - sillimanite schist / gneiss at ...
... quartz - garnet - silli- manite schist / gneiss and calc granulite together comprise the khondalite group . Garnetiferous quartzite generally occurs as narrow linear bands . within the quartz - garnet - sillimanite schist / gneiss at ...
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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