Records of the Geological Survey of New South Wales
Records of the Geological Survey of New South Wales
Geological Survey of New South Wales
The book Records of the Geological Survey of New South Wales was written by author Geological Survey of New South Wales Here you can read free online of Records of the Geological Survey of New South Wales book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Records of the Geological Survey of New South Wales a good or bad book?
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Further, the alkalies are high, as shown by the following table : — $ Weight percentage of— I w 1 Soda Potash Total Alkalies 3'30 217 394 1-28 312 117 3'44 210 268 186 3*04 123 547 5-22 4 29 5'54 4*54 4-27 313 1-99 4*06 1-78 4*22 1-80 3*61 1-80 512 5*86 6*02 5*41 * Analyses of the nepheline-bearing varieties of Burragorang and Dural hare not as yet been made. t The basalt* having broken through hundreds of feet of sandstone, grains of quartz are frequently found in them, the percentage of silic...a given by tne bulk analysis being thereby slightly increased. t Certain of the results tabulated on page 230 are not dealt with, as tho rocks proved to be considerably altered* and that from Prospect at times contains analcite amygdales. An analysis has also been made of the Warramalong basalt by Mr. H. P. White, and of the Mount Tomah basalt by Mr. J. C. H. Mingaye. Both these are flows. 238 Records of tiie Geological Survey of Few South Wales. [vol, tu. • It will be seen that in the case of the Warramalong rock the total alkalies reach six per cent., and the soda alone exceeds four.
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