Records of the Geological Survey of India, Volume 113, Parts 4-6The Survey, 1980 - 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 44
... represent sam- ples showing gradually increasing Ni - content with apparently no direct relationship with Fe - content . These may represent samples with discrete garnierite . ( iii ) The third group of points lying between the zone at ...
... represent sam- ples showing gradually increasing Ni - content with apparently no direct relationship with Fe - content . These may represent samples with discrete garnierite . ( iii ) The third group of points lying between the zone at ...
Page 51
... represent ash or tuff flows or hyaloclastites . The palagonite tuff , however , may possibly represent a fragmentary material derived from aqueous cooling of basaltic lava . The pyroclastics do not exhibit reddening due to oxidation ...
... represent ash or tuff flows or hyaloclastites . The palagonite tuff , however , may possibly represent a fragmentary material derived from aqueous cooling of basaltic lava . The pyroclastics do not exhibit reddening due to oxidation ...
Page 157
... represent the upper part of the Continental Crust while granulite - charno . ckite suite of rocks expose the lower parts of the Crust . The area has undergone atleast one period of granulite facies metamorphism represented by a large ...
... represent the upper part of the Continental Crust while granulite - charno . ckite suite of rocks expose the lower parts of the Crust . The area has undergone atleast one period of granulite facies metamorphism represented by a large ...
Contents
Part | 1 |
Problems of correlation of PreGondwana rock units of Arunachal Pradesh and adjoining areasa review | 15 |
The Sung Valley alkaline ultramafic carbonatite complex East Khasi and Jaintia Hills districts Meghalaya | 24 |
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Common terms and phrases
alluvium anorthosite assemblage associated augite bands basalt flows basin beds belt biotite Bombay bore holes borehole calcite carbonatite Charnockite chert chlorite chromite clay clinopyroxene coal complex Deccan Trap deposits developed district drainage dykes emplaced fault felspar fluorite folds Formation fossil fragments gabbro geochemical Geol Geological Survey geomorphic gneisses Gondwana grade grains granite granulites greisens grey groundmass Group hill Himalayas ijolite indicated intrusive laterite layers limestone magnetite Manipur mapping Meghalaya metamorphic metres migmatites mineralisation minerals Narmada occur olivine opaque ophiolite phenocrysts phosphorite phyllite plagioclase Plate porphyritic Pradesh present pyroclastic pyroxene pyroxenite quartz quartz veins quartzite region river rocks samples sandstone schist seam sedimentary sediments sequence serpentinite shale sillimanite soil stratigraphic structure studies sub-surface surface Surv Survey of India Tapti tectonic thickness thin tion trending tuff ultramafic Unpublished GSI Report upto Vaghur valley volcanic zone