The REE content of some hydrothermal fluids
The REE content of some hydrothermal fluids
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DOI：
10.1016/0009-2541(86)90127-0
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发表时间：
1986-05
期刊：
影响因子：
3.9
通讯作者：
A. Michard;F. Albarède
中科院分区：
文献类型：
--
作者：
A. Michard;F. Albarède
结果表明，在热液系统中，当温度低于350℃，水岩比<105时，稀土元素是不动的。海底溶液和硬石膏含量（+4.7至+6.2）的ϵNd-values表明在山脊两侧被沉积物覆盖的地方有补给。用碱度测量的碳酸盐阴离子似乎在一定程度上增加了重稀土元素的溶解度，但还没有达到通过热液活动将大量稀土元素从岩石中驱逐出去的程度。
REE concentrations were determined in solutions from submarine hydrothermal vents on the East Pacific Rise and, for the first time, from continental geothermal fields in Tibet and Bulgaria. They indicate that, in hydrothermal systems, REE are immobile at temperatures below 350°C and for water/rock ratios of <105.ϵNd-values of submarine solutions and anhydrites (+4.7 to +6.2) suggests recharge on the sedimentcovered flanks of the ridge. Carbonate anions, as measured by alkalinity, appear to increase the solubility of heavy REE somewhat, but not to the extent that substantial amounts of REE could be driven out from rocks by hydrothermal activity.