Mass concentrations and patterns of rare earth elements in groundwater of Lalin River basin
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
To understand the geochemical characteristics of rare earth elements (REE) in groundwater of Lalin River basin, the rare earth elements in the regional groundwater system were studied through rare earth element mass concentration testing and North American Shale Composite(NASC) normalized analysis. The distribution characteristics of REE speciation along the groundwater flow path were studied using PHREEQC software modeling. The results showed that: the total amount of rareearth elements(∑REE) in the groundwater of the Lalin River basin ranged from 0.030 to 2.649μg/L(mean value 0.328μg/L); Light Rare Earth Elements(LREE) is quite depleted, while Heavy Rare Earth Elements (HREE) are relatively enriched, with significant positive Eu anomalies and mild Ce negative anomalies; the REE in the groundwater mainly existed in the form of Ln CO3+and Ln(CO3)2-; along the regional groundwater flow path, the groundwater in Lalin River basin demonstratel the decline of REE concentration and the increase of positive Eu anomalies. Furthermore, LnCO3+ concentrations decreased and Ln(CO3)2- increased respectively along the groundwater flow path; the formation of dicarbonate complexes of rare earth elements was the main reason for the relative enrichment of HREE.
Keywords:
Project Supported:
Clc Number:
Mobile website
® 2024 All Rights Reserved
冀公网安备13010502002656号
冀公网安备13010502002656号