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 63
... thin sections , they are composed of diopside augite and plagioclase ( usually andesine ) with varying proportions of hypersthene , second- ary hornblende and biotite . Opaque minerals are commonly present in minor amounts . Websterite ...
... thin sections , they are composed of diopside augite and plagioclase ( usually andesine ) with varying proportions of hypersthene , second- ary hornblende and biotite . Opaque minerals are commonly present in minor amounts . Websterite ...
Page 15
... thin ( 1 to 3 cm ) sooms of cloey MAHANADI RESERVOIR PROJECT , MADHYA PRADESH. Rac . Geel Sur Ind Vol 113 , pt ... thin sandstone 140 322-53 earthy , seam and sandy ico ! 180 200 321-83 seams 115 At 210m and 2 20m depths thin clay At 2:40 ...
... thin ( 1 to 3 cm ) sooms of cloey MAHANADI RESERVOIR PROJECT , MADHYA PRADESH. Rac . Geel Sur Ind Vol 113 , pt ... thin sandstone 140 322-53 earthy , seam and sandy ico ! 180 200 321-83 seams 115 At 210m and 2 20m depths thin clay At 2:40 ...
Page 55
... thin sheets with fine prismatic joints and are also seen enveloping large fragmentary blocks . Aa flows of central volcanic activity exhibit tripartite structure the clinker at the base and top of the central massive basalt . The basal ...
... thin sheets with fine prismatic joints and are also seen enveloping large fragmentary blocks . Aa flows of central volcanic activity exhibit tripartite structure the clinker at the base and top of the central massive basalt . The basal ...
Contents
Exploration for coal with particular reference to Tertiary coalfields of North Eastern India | 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 | 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 breccia calcite carbonatite Charnockite chert chlorite chromite clay clinopyroxene coal complex Deccan Trap deposits developed district drainage drilling dykes fault felspar fluorite folds Formation fossil fragments geochemical Geol Geological Survey geomorphic gneisses Gondwana grade grains granite granulites greisens grey groundmass Group hills Himalayas ijolite indicated intrusive laterite layers limestone magnetite Manipur mapping metamorphic metres migmatites mineralisation minerals Narmada NW-SE occur olivine 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