Records of the Geological Survey of India, Volume 86, Parts 3-4The Survey, 1960 - Earthquakes |
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Page 547
... PROPERTIES The following are the optical properties of the mineral α 1.7187 B 1.720 ± 0.002 Y 1-724 0.006 γα 2V : ( + ) 58 ° in most cases and 53 ° in a X : Y : Z : single case . ( measured ) Light green to yellowish green Slate blue or ...
... PROPERTIES The following are the optical properties of the mineral α 1.7187 B 1.720 ± 0.002 Y 1-724 0.006 γα 2V : ( + ) 58 ° in most cases and 53 ° in a X : Y : Z : single case . ( measured ) Light green to yellowish green Slate blue or ...
Page 550
... properties of chloritoid ( Milne , 1949 ) x = 1.715 to 1 · 724 ; ß = 1.719 to 1728 y 1.724 to 1.737 ; Y - x = 0 · 006 to 0 · 22 ; 2V = ( + ) 36 ° to 66 ° ( Hietaren reports a negative angle also ) ; ZA [ 001 ] = 5 ° to 30 ° ( Hieta- nen ...
... properties of chloritoid ( Milne , 1949 ) x = 1.715 to 1 · 724 ; ß = 1.719 to 1728 y 1.724 to 1.737 ; Y - x = 0 · 006 to 0 · 22 ; 2V = ( + ) 36 ° to 66 ° ( Hietaren reports a negative angle also ) ; ZA [ 001 ] = 5 ° to 30 ° ( Hieta- nen ...
Page 566
... properties as those peculiar to it where alone . The magnetic properties of a rock with mixed magnetic minerals are resultants of the properties of each magnetic mineral depending on their ratios and other factors . For example , it ...
... properties as those peculiar to it where alone . The magnetic properties of a rock with mixed magnetic minerals are resultants of the properties of each magnetic mineral depending on their ratios and other factors . For example , it ...
Contents
PHYSIOGRAPHY and REGIONAL GEOLOGY | 442 |
The Valudavur Meteorite By A K Dey B Sc Ph D | 447 |
Marl Deposits In The Districts of Barabanki Lucknow | 455 |
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analysis anhydrite anorthosite Australia Bara Banki Barakars basin beds Bijaigarh shale Bijawar BORE HOLE boulders breccia calcite Calorific Carbonaceous shale cement cent chemical chloritoid chlorophaeite Coal and shale coal streaks coalfield Coaly shale Colliery colour composition Conglomerate crystals depth district dolomite faulting feet felspar ferruginous fire clay Fixed carbon flows formation Geol Geological Survey glaciation Gondwana Gondwana System Gondwanaland Grey gypsum hematite Ib river ibid ice cap indicate Jasmandah kyanite Lajkuria lava limestone Lower Lucknow magnetite marl meteorite miles mineral Moisture nala native copper occurs olivine outcrop Permian plagioclase present pyrite quartz quartzite Rae Bareli Rampur Rampur seam Raniganj remanent magnetism rocks samples Sanai sandstone sediments Series shale Shale with coal Shaly coal Shaly sandstone Survey of India Talchir temperature thickness thin tillite tion tons traps Triassic unconformity Upper Kaimur sandstone Valley Vindhyan Volatile matter zeolites