Clays and Clay Minerals: Proceedings of the Seventh National by Ada Swineford

By Ada Swineford

Clays and Clay Minerals, quantity five comprises the lawsuits of the 7th nationwide convention on Clays and Clay Minerals held in Washington, D.C., on October 20-23, 1958. The papers discover advancements in clays and clay mineralogy and canopy subject matters similar to differential settling trends of clay minerals in saline waters; impact of seawater on clay minerals; clay mineralogy of backside sediments; relationships within the montmorillonite crew of clay minerals; and water content material of vermiculite. Advances in X-ray diftractometry of clay minerals also are mentioned.
This ebook is made out of 23 chapters and starts off with an research of differential settling velocities of person clay mineral varieties and clay mineral combos in quiet saline water. The reader is then brought to speedy dissolution of allophane and kaolinite-halloysite after dehydration; formation of chlorite-like buildings from montmorillonite; neighborhood clay mineral styles within the Gulf of Mexico; and quantitative X-ray determinations of a few aluminous clay minerals in rocks. The geology of clay deposits in elements of Washington and Idaho is additionally tested, besides the effect of exchangeable cations at the viscosity of clay suspensions. the ultimate bankruptcy offers the result of X-ray research of soil colloids via a converted salted paste procedure.
This quantity should be of price to earth scientists, mineralogists, and people attracted to clays.

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Extra resources for Clays and Clay Minerals: Proceedings of the Seventh National Conference on Clays and Clay Minerals

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In a 1 1. vessel of diameter greater than 5 cm. With the suspension at rest, a calibrated pipette extraction of 20 ml is made after a time t at a depth of 5 or 10 cm. The pipette taps a spherical zone rather than a hori­ zontal stratum but Kohn (1928), Keen (1931, p. 82), and Gessner (1931, p. 79) have shown that the net error is practically negligible. The suspension sample is evaporated to dryness at 50°C and weighed. Since artificial sea-water introduces salt residue upon evaporation of the extract, the solid is washed, filtered or dialysed, and dried until constant weight is obtained.

The pipe was kept as level as possible and no curvature was introduced into the pipe at any point beyond the affluent sampling valve. , rheostat controlled, motor-driven mechanism. Rate of flow of the suspension was measured with a Penn Linameter type, self cleaning flowmeter and by actual volumetric collection of the effluent for specific time intervals. 0°C. The velocities of flow required 26 SEVENTH NATIONAL CONFERENCE ON CLAYS AND CLAY MINERALS to maintain constant composition of individual clay mineral types were measured.

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