Records of the Geological Survey of India, Volume 86, Parts 3-4The Survey, 1960 - Earthquakes |
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Page 422
... usually very large , but locally small , areal extent , commonly with a domical structure such as the Adirondack , New York ; Morin , Quebec ; and St. Paul , Labrador bodies . There may also be sheets with an average composition of ...
... usually very large , but locally small , areal extent , commonly with a domical structure such as the Adirondack , New York ; Morin , Quebec ; and St. Paul , Labrador bodies . There may also be sheets with an average composition of ...
Page 432
... usually perfectly developed , varying in size from fine to large ones measuring one inch across . Its hardness is 4. Sp . gravity 2.1 . Its refractive index varies between 1.487 and 1.498 . Crystals are tabular or lamellar , and ...
... usually perfectly developed , varying in size from fine to large ones measuring one inch across . Its hardness is 4. Sp . gravity 2.1 . Its refractive index varies between 1.487 and 1.498 . Crystals are tabular or lamellar , and ...
Page 640
... usually not very good , as a typical tillite is formed only on land . Over and above this , many ancient tillites have , undoubtedly , been so altered by metamor- phism that they cannot to - day be recognised with certainly . It is ...
... usually not very good , as a typical tillite is formed only on land . Over and above this , many ancient tillites have , undoubtedly , been so altered by metamor- phism that they cannot to - day be recognised with certainly . It is ...
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