منابع مشابه
Sedimentology of the Salem Limestone in Indiana
The Mississippian Salem Limestone, from which dimension stone is quarried in Indiana, is principally a calcarenitic rock formed of fossil bryozoans, echinoderms, and specimens of Endothyra. Numerical associations of the fossils, binding materials, oolitically coated fossils, and voids were determined by counting points on the surfaces of 278 thin sections of the limestone. Median sizes, coeffic...
متن کاملDisabling pneumoconiosis from limestone dust.
Limestone dust is generally regarded as being relatively harmless. In this paper I wish to record eight cases of pneumoconiosis in limestone workers, in all of which limestone played the sole or principal aetiological part. My attention was first drawn to the condition in November, 1950, when I saw the chest radiograph of a patient whose occupation was limestone crushing. The appearances were m...
متن کاملInfluence of Joint in the Phenomena of Solubility of Limestone
Influence of Joint in the Phenomena of Solubility of Limestone
متن کاملMathematical Modeling on Open Limestone Channel
Acid mine drainage (AMD) is the outflow of acidic water from metal mines or coal mines. When exposed to air and water, metal sulfides from the deposits of the mines are oxidized and produce acid, metal ions and sulfate, which lower the pH value of the water. An open limestone channel (OLC) is a passive and low cost way to neutralize AMD. The dissolution of calcium into the water increases the p...
متن کاملCalcium Carbonate Dissolution Rate in Limestone Contactors
The project summarized here investigated some of the parameters and relationships used to predict the performance of limestone contactors. The purpose of the project was to study the effect of limestone composition, especially the dolomite [CaMg(CO 3) 2 ] and impurity content of the stone, on the kinetics of carbonate mineral dissolution and to determine the effect of temperature on the rate of...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1906
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800119144