Records of the Geological Survey of India, Volume 94Government of India, 1962 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 25
... flows , each separated by thin bands of ferruginous , ochreous material or calcareous clay and unfossiliferous limestone . The thickness of the flows is usually 10 to 12 ft . but flows upto 100 ft . are also noticed . In the vesicular ...
... flows , each separated by thin bands of ferruginous , ochreous material or calcareous clay and unfossiliferous limestone . The thickness of the flows is usually 10 to 12 ft . but flows upto 100 ft . are also noticed . In the vesicular ...
Page 215
... flows or the average thickness of each flow . About 14.5 km . south of Chotila ( 161 km . to the N. N. E. of this area ) Fedden found in a scarp about 97-5 metres high , at least eight superimposed flows , giving an average of 12-2 ...
... flows or the average thickness of each flow . About 14.5 km . south of Chotila ( 161 km . to the N. N. E. of this area ) Fedden found in a scarp about 97-5 metres high , at least eight superimposed flows , giving an average of 12-2 ...
Page 270
... flows is clearly recogniseable as the less vesicular base of one trap resting directly over the more vesicular top of another trap . Presence of in - filled cracks . - These are simple cracks formed by the con- traction during the ...
... flows is clearly recogniseable as the less vesicular base of one trap resting directly over the more vesicular top of another trap . Presence of in - filled cracks . - These are simple cracks formed by the con- traction during the ...
Contents
INTRODUCTION | 1 |
MINERAL INVESTIGATIONS | 28 |
ENGINEERING GEOLOGY AND WATERSUPPLY INVESTIGATIONS 888 | 88 |
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1/16 inch slot 12-inch dia amphibole amphibolites Andhra Andhra Pradesh Argada Balasore bands Barakar basalts beds boreholes Calcutta cent charnockites chondrules coal coalfield Cretaceous Cushman Deccan Traps deposits dips district district.-Shri dolerite drawdown east ending in clay felspar folds foraminifera formations fossils G.S.I. Type geological mapping Geological Survey gneisses Gondwana grade grains granites Gravel for shrouding grey Groundwater heavy mineral housing installed ilmenite investigations iron-ore land surface limestone m.s.l. Drilled magnetite manganese manganese-ore metamorphic metres miles million tons mineralisation minutes of test occur olivine Orissa outcrop pegmatites phenocrysts phyllites porphyritic Pradesh pumping with turbine quartz quartz veins quartzites Rajasthan ridge river rutile samples sand dunes sandstones Sarvashri Sastri saturated granular zones schists seams shales Shri sillimanite slotted sections specimen Srivastava Static water level Survey of India test pumping thickness topo-sheets tubewells turbine pump Utatur vesicular zones at depths