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Geochemical characteristics of fluorine (F) in mainland China's pedosphere: On the basis of the China Geochemical Baselines project.
- Source :
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Journal of Geochemical Exploration . Dec2020, Vol. 219, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
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Abstract
- The China Geochemical Baseline (CGB) project (2008–2013) obtained harmonious geochemical baseline data covering all of China, and provided reliable data for 76 elements including F from 3382 top and 3380 deep soil samples. This paper described the statistical and spatial distribution of fluorine (F) throughout China. F concentration ranged from 63 to 9364 μg/g in top soil and ˂ 52 to 9346 μg/g in deep soil. The median concentration of F, which is deemed to be the geochemical baseline in top and deep samples are 488 μg/g and 456 μg/g respectively. The mean concentration of F in top and deep soil samples are 506 μg/g and 482 μg/g respectively. Low F concentrations areas are linearly distributed from northeastern to southwestern China, and high F concentrations areas are distributed in northwestern, northern China and karst area. The anomalous centres of F are exactly correlated with F mineralization. This distribution pattern of F in pedosphere is influenced by minealizations, lithology background, geomorphic landscapes, drainage basins and soil types. Generally, fluorine-bearing rocks provide a reliable source of F in pedosphere, and the geochemical behavior of F determines its ability to migrate in different media. • Low F concentrations areas are linearly distributed from northeastern to southwestern China, and high F concentrations areas are distributed in northwestern, northern China and karst area. • This distribution of F in China's pedosphere is influenced by lithology background mainly. Geomorphic landscapes, drainage basins and soil types played regional-scale roles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03756742
- Volume :
- 219
- Database :
- Academic Search Index
- Journal :
- Journal of Geochemical Exploration
- Publication Type :
- Academic Journal
- Accession number :
- 146398320
- Full Text :
- https://doi.org/10.1016/j.gexplo.2020.106635