Records of the Geological Survey of IndiaGeological Survey of India, 1939 - 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 178
... replaced by chlorite , as the chief constituent , have been grouped together under the general term amphibolite . The range of variation in texture and composition of these basic rocks is , however , wide . Compact , massive dykes ...
... replaced by chlorite , as the chief constituent , have been grouped together under the general term amphibolite . The range of variation in texture and composition of these basic rocks is , however , wide . Compact , massive dykes ...
Page 199
... replaced by alteration products , both chloritic and serpentinous materials . Iron ores are present in grains and blotches . Patches of glassy base are also noticeable in the thin section . These vary in colour from brownish opaque to ...
... replaced by alteration products , both chloritic and serpentinous materials . Iron ores are present in grains and blotches . Patches of glassy base are also noticeable in the thin section . These vary in colour from brownish opaque to ...
Page 211
... replacing wolfram ) occur quite commonly . The granite is rather variable both in texture and mineral assem- blage . Occasionally it is banded or gneissic , especially the tour- maline variety . Kaolinisation has been widespread , and ...
... replacing wolfram ) occur quite commonly . The granite is rather variable both in texture and mineral assem- blage . Occasionally it is banded or gneissic , especially the tour- maline variety . Kaolinisation has been widespread , and ...
Page 212
... replaced first biotite and then continued growth by replacing felspar . It is both blue and brown in colour , and is occasionally zoned . Sometimes the centre of the tourmaline may be a well defined crystal , which has continued growth ...
... replaced first biotite and then continued growth by replacing felspar . It is both blue and brown in colour , and is occasionally zoned . Sometimes the centre of the tourmaline may be a well defined crystal , which has continued growth ...
Page 213
... replaced crushed quartz , it is obviously later than the crushing . Analyses of three specimens of this granite are given in Table 2 . No. 8. - A fresh fine medium - grained tourmaline granite . Not- withstanding that fluorine is not ...
... replaced crushed quartz , it is obviously later than the crushing . Analyses of three specimens of this granite are given in Table 2 . No. 8. - A fresh fine medium - grained tourmaline granite . Not- withstanding that fluorine is not ...
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Common terms and phrases
1.-General Report 3.-Mineral Production Aravalli Assam Baluchistan basal Bengal Bihar biotite Bombay calcareous Calcutta cassiterite Central Provinces charnockite Chinji Coal Coal-field conglomerate Congr Coulson Cretaceous Deccan trap deposits Dhok Pathan Diener district earthquake east Eastern Eastern States Agency Eocene F. R. C. Reed fauna felspar formation Fossil garnet genus Geol Geological Survey Geologist Geology gneisses gneissic Gondwana granite Hills Himalayas India intrusive Journ Kashmir limestone Lower Madras Memoir metamorphic meteorite Mica miles minerals Mining Miscellaneous Notes Nagpur Narbada North-West Northern Shan occur outcrops Paliyad Permian phyllites Pinjor plateau print).-Annual report Proc Production of India Punjab quartz quartzite Rajputana Red Beds river rocks rupees Sahni Salt Range sandstones schists shales sheet Siwalik Southern species specimens Surv Survey of India Tertiary Trias Triassic Twenty-fourth Ind Upper Burma valley veins Vindhyan VOL VOL Western wolfram Yunnan