MAKE A MEME View Large Image South African Geology - Schwarz - 1912 Fig 11.png en Figure from South African Geology - Schwarz - 1912 Page 66 Fig 11 Spherical Limestone Septaria in Dwyka Shales The balls have broken across level with the surface and the interior has ...
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Keywords: South African Geology - Schwarz - 1912 Fig 11.png en Figure from South African Geology - Schwarz - 1912 Page 66 Fig 11 Spherical Limestone Septaria in Dwyka Shales The balls have broken across level with the surface and the interior has been removed by atmospheric agencies quicker than the harder rind The cracks produced by the drying of the concretion now filled with white calcite are shown 1912 File South African Geology - Schwarz - 1912 djvu Schwarz Ernest Hubert Lewis 1873-1928 other versions PD-old-70-1923 South African geology book
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