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Multi-element geochemical mapping in Southern China
Zhizhong Cheng1, Xuejing Xie2, Wensheng Yao2
1Development and Research Center of China Geological Survey, No. 45 Fuwai Street, Beijing 100037, China ; Institute of Geophysical and Geochemical Exploration CAGS, No. 84 Jinguang Road, Langfang 065000, China.
Journal of Geochemical Exploration
|April 22, 2014
Summary
The 76-element Geochemical Mapping (76 GEM) Project analyzed 5,244 stream sediment samples in southern China. This study applied a new quality-control method to geochemical data, revealing element distribution patterns.
Area of Science:
- Geochemistry
- Environmental Science
- Earth Science
Background:
- The 76-element Geochemical Mapping (76 GEM) Project collected stream sediment samples across southern China starting in 2000 and 2008.
- Data originates from the China Regional Geochemistry-National Reconnaissance (RGNR) Project archives, established in 1978.
- A comprehensive dataset of 5,244 composite samples was utilized.
Purpose of the Study:
- To apply a novel quality-control method, the visualized standard map method, to geochemical data.
- To derive mean and background values for 76 elements in southern China.
- To generate geochemical maps illustrating element distribution.
Main Methods:
- Analysis of 76 elements using ICP-MS, XRF, and ICP-AES.
- Application of the visualized standard map method for quality control.
- Statistical derivation of mean and background element concentrations.
Main Results:
- Successful application of the visualized standard map method to the 76 GEM project data.
- Determination of mean and background values for 76 elements in southern China.
- Compilation of geochemical maps showing element distribution.
Conclusions:
- The visualized standard map method is effective for quality control of large-scale geochemical mapping projects.
- The generated geochemical maps provide valuable insights into element distribution in southern China.
- This study enhances the understanding of regional geochemistry and resource potential.
