| Rare earth geochemistry in the dissolved, suspended and sedimentary loads in karstic rivers, Southwest China | |
| Yongbin Jiang; Hongbing Ji | |
| 2012 | |
| Source Publication | Environmental Earth Sciences
 |
| Volume | 66Issue:8Pages:2217-2234 |
| Abstract | The watershed in the central Guizhou Province (Guizhou Province is called simply Qian) (CQW) is a karstic area. Rare earth elements (REEs) of dissolved loads, suspended particulate material (SPM) and sediments of riverbed are first synthetically reported to investigate REE geochemistry in the three phases in karstic watershed during the high-flow season. Results show that the low dissolved REE concentrations in the CQW are attributed to these rivers draining carbonate rocks. The dissolved REE have significant negative Eu anomaly and coexistence of middle and light REE (MREE-PAAS-normalized La (N) /Sm (N) and Gd (N) /Yb (N) ; LREE-PAAS-normalized La (N) /Yb (N) )-enrichment, which are due to the dissolution of impure Triassic carbonates. REE concentrations in most of SPM exceed that of sediments in the CQW and the average continental crust (UCC). The SPM and the sediments show some common features: positive Eu, Ce anomalies, and MREE enrichment. The controls on the patterns seem to be from weathering profiles: the oxidation state, the REE-bearing secondary minerals (cerianite, potassium feldspar and plagioclase), which are also supported by the evidence of Y/Ho fractionations in the three phases. |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/4787 |
| Collection | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 |
| Recommended Citation GB/T 7714 | Yongbin Jiang,Hongbing Ji. Rare earth geochemistry in the dissolved, suspended and sedimentary loads in karstic rivers, Southwest China[J]. Environmental Earth Sciences,2012,66(8):2217-2234. |
| APA | Yongbin Jiang,&Hongbing Ji.(2012).Rare earth geochemistry in the dissolved, suspended and sedimentary loads in karstic rivers, Southwest China.Environmental Earth Sciences,66(8),2217-2234. |
| MLA | Yongbin Jiang,et al."Rare earth geochemistry in the dissolved, suspended and sedimentary loads in karstic rivers, Southwest China".Environmental Earth Sciences 66.8(2012):2217-2234. |
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