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Science 14 August 1964:
Vol. 145. no. 3633, pp. 700 - 701
DOI: 10.1126/science.145.3633.700
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Articles

Calcite-Dolomite-Magnesite Stability Relations in Solutions at Elevated Temperatures

P. E. Rosenberg 1 and H. D. Holland 2

1 Department of Geology, Washington State University, Pullman
2 Department of Geology, Princeton University, Princeton, New Jersey

The stability relations of calcite, dolomite, and magnesite in aqueous CaCl2-MgCl2-CO2 solutions have been determined between 275° and 420°C. Small quantities of the carbonates were allowed to equilibrate with large volumes of aqueous solutions, permitting the approach of phase boundaries from two directions. Experimental data indicate that the stability field of calcite narrows toward higher temperatures, dolomite is incongruently soluble, and magnesite stability extends into the calcium-rich portion of the system.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Am J Sci 308, 885-904
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Secular variation in seawater chemistry and the origin of calcium chloride basinal brines.
T. K. Lowenstein, L. A. Hardie, M. N. Timofeeff, and R. V. Demicco (2003)
Geology 31, 857-860
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Constraints on the Formation of Sedimentary Dolomite.
P. A. BAKER and M. KASTNER (1981)
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Science. ISSN 0036-8075 (print), 1095-9203 (online)