CARBON ISOTOPE FRACTIONATION DURING PRECIPITATION OF CALCIUM CARBONATE
CARBON ISOTOPE FRACTIONATION DURING PRECIPITATION OF CALCIUM CARBONATE
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DOI：
10.1016/0012-821x(70)90109-3
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发表时间：
1970-01-01
影响因子：
5.3
通讯作者：
VOGEL, JC
中科院分区：
文献类型：
--
作者：
EMRICH, K;VOGEL, JC
碳同位素12 C和13 C在平衡体系CO2（气体）-HCO 3 −（溶解的-CaCO 3（固体））中的分馏已经在20°C和60°C之间的温度下测量。在20 ° C时，固体碳酸盐和气态二氧化碳之间的分馏εcg为+（10.17 ± 0.18）ooo，温度依赖性dccg/dT为−（0.063 ± 0.008）ooo/°C。碳酸盐和碳酸氢盐以及碳酸氢盐和二氧化碳之间的相应分馏（20°C）分别为：εcb= +（1.85 ± 0.23）ooo，dεcb/dT = +（0.035 ± 0.013）ooo/°C和εbg= +（8.38 ± 0.12）ooo，dεbg/dT = −（0.109 ± 0.005）ooo/°C。
The fractionation of the carbon isotopes12C and13C in the equilibrium system CO2(gas)-HCO3−(dissolved- CaCO3(solid) has been measured at temperatures between 20°C and 60°C. The fractionation between solid carbonate and gaseous carbon dioxide,εcg,is+(10.17 ± 0.18)ooo at 20°C and the temperature dependence,dccg/dT,is−(0.063 ± 0.008)ooo/°C at 20°C. The corresponding fractionations between carbonate and bicarbonate, and bicarbonate and carbon dioxide (20°C) are:εcb= +(1.85 ± 0.23)ooo,dεcb/dT = +(0.035 ± 0.013)ooo/°C andεbg= +(8.38 ± 0.12)ooo,dεbg/dT = −(0.109 ± 0.005)ooo/°C respectively.