首页|期刊导航|中国地球化学学报(英文版)|Experimental Study on the Effects of Organic Acids on the Dissolution of REE in the Weathering Crust of Granite
中国地球化学学报(英文版)2001，Vol.20Issue(2)：144-151,8.
Experimental Study on the Effects of Organic Acids on the Dissolution of REE in the Weathering Crust of Granite
Experimental Study on the Effects of Organic Acids on the Dissolution of REE in the Weathering Crust of Granite
摘要
Abstract
The results of REE leached by some organic acids with various concentrations and water/rock ratios for different durations from a mixed sample of the weathering crust of a granite in Gonghe, Guangdong, China, showed that: 1 ) the contents of REE leached increase with increasing concentrations of the organic acids; 2) the contents of REE leached by 0.01 mol/L organic acids increase with increasing water/rock ratio; 3) the interaction between the organic acids and the samples enhances the pH value of the medium and the contents of REE leached tend to increase with decreasing pH value; and 4) compared with those leached by ammonia sulfate, the REE leached by the organic acids are characterized by a weaker negative Ce anomaly, a stronger negative Eu anomaly, and lower (La/Sm)N and (Gd/Yb)N ratios, indicating that the organic acids have made contributions to the fractionation of REE in the weathering crust.关键词
organic acid/REE/weathering crust/graniteKey words
organic acid/REE/weathering crust/granite分类
天文与地球科学引用本文复制引用
陈炳辉,毋福海,刘琥琥..Experimental Study on the Effects of Organic Acids on the Dissolution of REE in the Weathering Crust of Granite[J].中国地球化学学报(英文版),2001,20(2):144-151,8.基金项目
This work was granted by the Natural Science Foundation of Guangdong Province, China (Grant Nos. 960042, 990232). （Grant Nos. 960042, 990232）
