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 197
... noticed . Among the pyroxenes , diop- side , enstatite and hypersthene are present in increasing order of abun- dance in the rock . A few prisms of actinolite show over growth of the same mineral ; the core of the mineral shows stronger ...
... noticed . Among the pyroxenes , diop- side , enstatite and hypersthene are present in increasing order of abun- dance in the rock . A few prisms of actinolite show over growth of the same mineral ; the core of the mineral shows stronger ...
Page 269
... noticed from base to top of flow . Conse- quently variation in compactness is noticed . Base is marked by zeolite - filled tubes . 3.4 Soft vesicular porphyritic trap , amygdaloidal : 8.5 Fine massive porphyritic trap : more weathered ...
... noticed from base to top of flow . Conse- quently variation in compactness is noticed . Base is marked by zeolite - filled tubes . 3.4 Soft vesicular porphyritic trap , amygdaloidal : 8.5 Fine massive porphyritic trap : more weathered ...
Page 270
... noticed . In places , however , they show im- perfect gradations in size and somewhat uniform distribution . Such grada- tions , when noticed , are as a rule from the top to the base , the vesicles at the base being smaller than those ...
... noticed . In places , however , they show im- perfect gradations in size and somewhat uniform distribution . Such grada- tions , when noticed , are as a rule from the top to the base , the vesicles at the base being smaller than those ...
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