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 26
... occur mostly as small lenses and veins in pyroxenite and serpentinite within a partial ring - like circular zone in the south- half of the complex ( Plate 3.04 ) . Thin ijolite veins are also common in the feldspathic border zone ...
... occur mostly as small lenses and veins in pyroxenite and serpentinite within a partial ring - like circular zone in the south- half of the complex ( Plate 3.04 ) . Thin ijolite veins are also common in the feldspathic border zone ...
Page 82
... occur as narrow linear bands while the porphyritic and coarse grained granites occur as small plutons . A comprehensive lithostratigraphy for the area was arrived at for the area during the Sonapahar Sillimanite Investigation with which ...
... occur as narrow linear bands while the porphyritic and coarse grained granites occur as small plutons . A comprehensive lithostratigraphy for the area was arrived at for the area during the Sonapahar Sillimanite Investigation with which ...
Page 152
... occur as discontinuous bodies with metasediments like banded iron formations and garnet - sillimanite gneisses . Their dimensions vary from vary from large mappable bodies to small enclaves and lenses in leptynites and biotite gneisses ...
... occur as discontinuous bodies with metasediments like banded iron formations and garnet - sillimanite gneisses . Their dimensions vary from vary from large mappable bodies to small enclaves and lenses in leptynites and biotite gneisses ...
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