Clays and Clay Minerals. Volume 9. Proceedings of the Ninth National Conference on Clays and Clay Minerals
نویسندگان
چکیده
منابع مشابه
Twelfth National Conference on Clays and Clay Minerals
Studies have been made on muscovite single crystals treated under dry and hydrothermal conditions at temperatures above 800~ The course of reaction is markedly affected by the amount of water present in the system. In the presence of a large excess of water, appreciable reaction commences at 8(~0~ with the formation of kalsilite and corundum. The kalsilite may bear an epitaxial relationship to ...
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Clay minerals have been used in medicinal applications since Aboriginal times (Carretaro, 2002; Wilson, 2003). Clay poultices are used to heal wounds; people eat clays to coat stomach linings and soothe indigestion; animals eat clay containing trace elements (e.g., As) that can kill worms. The reasons that various clay minerals are effective as medicines may be as variable as the ailment, but b...
متن کاملNational Conference on Clays and Clay ~ V [ Inerals
Organic matter removal is accomplished rapidly and efficiently without removing carbonates by treating samples wi~h a sodium hypochlorite solution. Quantities of organic matter lefr in samples by this treatment are commonly less than remain after hydrogen peroxide treatment of acidified samples. Stable suspensions result from the use of a sodium carbonate-sodium bicarbonate solution to wash and...
متن کاملClay Minerals and Catalysis
More than half a century ago, Irish physicist John Desmond Bernal and Swiss geochemist Victor M. Goldschmidt independently proposed that clay minerals may have played an important role in prebiotic synthesis (Bernal 1949; Goldschmidt 1952). I concur that mineral catalysis must have had a central role in prebiotic synthesis because most uncatalyzed reactions start from simple precursors like hyd...
متن کاملClay Minerals: Adsorbophysical Properties
The structure and features of surfaces of clay minerals (kaolin, montmorillonite, etc) have an important scientific and practical value. On the surface the interrelation of processes at electronic, atomic and molecular levels is realized. Availability of mineral surface to external influences opens wide scientific and technical opportunities of use of the surface phenomena, so the research of c...
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ژورنال
عنوان ژورنال: Acta Crystallographica
سال: 1963
ISSN: 0365-110X
DOI: 10.1107/s0365110x63000633