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 71
... observed within a limited range appeared to be much stronger than the refraction arrivals on the records . This phenomenon is caused by the enhanced energy associated with the reflected waves at the critical angle . Since the basement ...
... observed within a limited range appeared to be much stronger than the refraction arrivals on the records . This phenomenon is caused by the enhanced energy associated with the reflected waves at the critical angle . Since the basement ...
Page 77
... observed at the geophones lo- cated around the point of critical angle , which is about 0.77 times the depth of the bedrocks . This phe- nomenon of enhanced energy associated with critical angle and wide angle reflections ( Meissner ...
... observed at the geophones lo- cated around the point of critical angle , which is about 0.77 times the depth of the bedrocks . This phe- nomenon of enhanced energy associated with critical angle and wide angle reflections ( Meissner ...
Page 90
... observed that true stratigraphic sequ- ence is difficult to delineate due to paucity of defi- nitely recognisable and indigenous fossils in the main belt of Disangs ( Pascoe , ibid ) . The limestone - bearing beds of Eastern Manipur was ...
... observed that true stratigraphic sequ- ence is difficult to delineate due to paucity of defi- nitely recognisable and indigenous fossils in the main belt of Disangs ( Pascoe , ibid ) . The limestone - bearing beds of Eastern Manipur was ...
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 |
Copyright | |
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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