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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 40 (1956)

Issue: 1. (January)

First Page: 140

Last Page: 152

Title: Factors Influencing Precipitation of Calcium Carbonate

Author(s): Edward J. Zeller (2), John L. Wray (2)

Abstract:

Aragonite, calcite, and vaterite have been precipitated under conditions of controlled temperature, pH, and impurity ion concentration. Results from X-ray diffraction studies, spectrographic analyses, microscopic examination, and thermoluminescence studies have provided information regarding the factors affecting the formation of the various crystalline forms. The immediate factor influencing the form of calcium carbonate precipitates is the impurity content of the crystals. The impurity content has been found to be greatly affected by the pH, temperature, impurity ion concentration in the original solution, the solubility of the polymorphs, crystal size, and the time the precipitate remains in contact with the solution. All of these factors are closely interrelated. The actors influencing the artificial precipitation of calcium carbonate are believed to be applicable to studies concerning the origin of carbonate sediments.

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