Records of the Geological Survey of India, Volume 118, Parts 3-8government of India., 1991 - Geology 1867- includes the "Annual report of the Geological survey of India". |
From inside the book
Results 1-3 of 72
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 texture . The porphyroblasts are mostly composed of feldspars . Garnets have an irregular ...
... rocks . The rock is leucocratic with a very small amount of ferro- magnesium minerals . It is medium to coarse grained , and porphyroblastic in texture . The porphyroblasts are mostly composed of feldspars . Garnets have an irregular ...
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 15
... rocks occur as concordant bands within the banded migmatite and granite gneiss . range in thickness from a few centimetres to 3-4 m and in some sections form mappable bands . The rocks are greenish to dark grey , well - foliated and ...
... rocks occur as concordant bands within the banded migmatite and granite gneiss . range in thickness from a few centimetres to 3-4 m and in some sections form mappable bands . The rocks are greenish to dark grey , well - foliated and ...
Contents
Study of TaptapaniChandragiri Shear Zone in Eastern Ghats | 1 |
Chemistry of Hornblendes of the amphibolites from HesatuBelbathan | 7 |
Deformation history of the Precambrian rocks around Tigda | 13 |
13 other sections not shown
Other editions - View all
Common terms and phrases
aeolian aerial alluvial amphibolite bands basin belt Bihar biotite channel Charnockite chromite chromitite clay coal field concentration denudational hills deposits developed drainage Duasini environmental erosion FAAS flood plain fluvial folds formation gabbro Ganjam Geol Geological Survey geomorphic GEOMORPHOLOGY gneiss gold grains granite gneiss granitised amphibolite groundwater hornblende INDIA Records Volume iron khondalite Kumari land landform landuse laterite Limonite lineament Manbazar Surface massive amphibolite material ment mineralised minerals mining nala ND ND Noa Dihing Opx cumulate Orissa oxidation parent rocks pediplain plagioclase platinum group ppm ppm ppm Purulia district Quarry quartz quartzite Quaternary Rohtak district Rushikulya river Sambhar Salt Lake samples sandstone schistose schistose amphibolite sediments shear zone slopes soil sq km sqkm structures SUKINDA ULTRAMAFIC Survey of India Taptapani terraces terrain Tetla thickness tion Tirap district trend ultramafic valley varies West Bengal