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 82
... granite- C Porphyritic granite A Migmatite M Biotite - gneiss Granite - gneiss B Augen - gneiss SONAPAHAR Amphibolite , meta - basics ( amphibole - gra- R 2 granulite , biotite- cordierite - granulite ) Sonapahar area is represented by ...
... granite- C Porphyritic granite A Migmatite M Biotite - gneiss Granite - gneiss B Augen - gneiss SONAPAHAR Amphibolite , meta - basics ( amphibole - gra- R 2 granulite , biotite- cordierite - granulite ) Sonapahar area is represented by ...
Page 150
... Granite Gneiss Complex is mainly granitic , Both the Complexes contain abundant impregnations of potash granite mobilizates and dioritic variants , The Complexes exhibit traces of polyphase deformation and polymetamorphism . They are ...
... Granite Gneiss Complex is mainly granitic , Both the Complexes contain abundant impregnations of potash granite mobilizates and dioritic variants , The Complexes exhibit traces of polyphase deformation and polymetamorphism . They are ...
Page 157
... granite rocks , the relative propor- tions of cordierite garnet bearing assemblages and the potash granites in the ... granite and pegmatites as suggested above . The biotite granite gneisses do retain some relict granulites which may be ...
... granite rocks , the relative propor- tions of cordierite garnet bearing assemblages and the potash granites in the ... granite and pegmatites as suggested above . The biotite granite gneisses do retain some relict granulites which may be ...
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