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| THE RESEARCH AND DEVELOPMENT OF 1:500000 GEOCHEMICAL CONTOUR MAP AND THE CORRECTION OF DEVIATION IN ANALYTICAL SYSTEM |
| Du Peixuan |
| Xian college of Geology, Xian 710054 |
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Abstract The compilation of small-scale geochemical maps by using 1:200000 geochemical exploration data has been carried out in the whole country. Based on experimental study of the mapmaking method,the present paper has put forward the mean correction method for deviation in geochemical data analysis,and advanced the method and technique for compilation of the 1:500000 geochemical contour map. The first 1:500000 geochemical contour map of China and 1:1500000 geochemical contour atlas have been completed on the trial basis.
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Received: 29 June 1992
Published: 24 August 1995
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