An isotopic study of siderites, dolomites and ankerites at high temperatures

Details An isotopic study of siderites, dolomites and ankerites at high temperatures An isotopic study of siderites, dolomites and ankerites at high temperatures

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50.1147r&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 50, Issue 6, pp.1147-1150

Computer Science

73

Scientific paper

Siderite, dolomite and ankerite were reacted with ">103°" phosphoric acid at temperatures up to 150°C with >99° yields achieved in less than two hours, using a modification of the McCrea (1950) technique. The oxygen fractionation factors, , between the 18 O of the carbonate and that of the acid-extracted CO 2 are: An empirically derived relationship between the chemical composition of a carbonate in the CaCO 3 -(Ca, Mg)(CO 3 ) 2 -FeCO 3 system and the function 10 3 In at 100°C is 10 3 In = 8.94 X CaCO 3 + 9.29 X MgCO 3 + 8.77 X FeCO 3 where X i is the mole percent of component i in the carbonate.

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