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 268
... trap , amygdaloidal MASSIVE TRAP . Thickness ( metres ) 2.4 29.8 5.6 ( 1773-1496 ft . ) Coarse Massive trap : several calcareous veins about 2.5 cm . thick . Rock is weathered . 4.6 Soft vesicular porphyritic trap , amygdaloidal 3.0 ...
... trap , amygdaloidal MASSIVE TRAP . Thickness ( metres ) 2.4 29.8 5.6 ( 1773-1496 ft . ) Coarse Massive trap : several calcareous veins about 2.5 cm . thick . Rock is weathered . 4.6 Soft vesicular porphyritic trap , amygdaloidal 3.0 ...
Page 270
... trap . One in - filled cracks is also seen . 2-7 Fine massive porphyritic trap : highly jointed . Phenocrysts of felspar show 1 : 3 breadth to length ratio . 2-4 Soft vesicular porphyritic trap , amygdaloidal . 3.0 Soft vesicular trap ...
... trap . One in - filled cracks is also seen . 2-7 Fine massive porphyritic trap : highly jointed . Phenocrysts of felspar show 1 : 3 breadth to length ratio . 2-4 Soft vesicular porphyritic trap , amygdaloidal . 3.0 Soft vesicular trap ...
Page 273
... trap : ( a ) Coarse trap . ( i ) Porphyritic variety . ( ii ) Non - porphyritic variety . ( b ) Fine trap . ( i ) Porphyritic variety . ( ii ) Non - porphyritic variety . Vesicular Traps . - The vesicular traps constitute the major ...
... trap : ( a ) Coarse trap . ( i ) Porphyritic variety . ( ii ) Non - porphyritic variety . ( b ) Fine trap . ( i ) Porphyritic variety . ( ii ) Non - porphyritic variety . Vesicular Traps . - The vesicular traps constitute the major ...
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