Prediction method of sand-movement direction in rivers by geochemical elements |
| |
| Authors: | K Mizumura T Nishimoto Y Kumagai T Yamamoto |
| |
| Institution: | (1) Dept. of Civil Engineering, Kanazawa Institute of Technology, 7-1, Ogigaoka, Nonoichimachi, Ishikawa Pref. 921, Japan, JP;(2) Kimura Construction Co., Ltd., 3-1, Anjuu-machi, Toyamashi, Toyama Pref. 930, Japan, JP;(3) Institute of Technology, Magara Construction Co., Ltd., 1-13-43, Hikosomachi, Kanazawa, Ishikawa Pref. 920, Japan, JP;(4) Dept. of Liberal Arts, Kanazawa Institute of Technology, 7-1, Ogigaoka, Nonoichimachi, Ishikawa Pref. 921, Japan, JP |
| |
| Abstract: | The analysis of sand samples by X-ray fluorescent spectroscopy (XRF) gives the ratio of the geochemical elements to construct
the sand samples. The application of the ratio matching to sand samples represents the correlation number between two sand
samples with respect to geochemical elements. When the correlation number between two sand samples is low, the two samples
are not geochemically similar each other. This denotes that the exchange of sand between two sampling points is scarce or
the two samples are independent. When the correlation number between two sand samples is high, the two samples are geochemically
similar, signifying that the exchange of sand between two sampling points is frequent or there is sand movement between two
sampling points. If there exists prominent sand movement in the study area, the correlation number is almost 1 and kilo count
number per second of each geochemical element per weight decreases along the flow direction. The decrease is caused by the
reduction of sizes and the adherence of dirt on the surface of sand particles. Since the flow direction in rivers is usually
the same as the direction of sand movement, it can be verified. This study obtains satisfactory results applying the method
of prediction in sand movement to sediments in rivers.
Received: 17 May 1995 · Accepted: 14 August 1995 |
| |
| Keywords: | River sand Geochemical elements X-ray fluorescent spectroscopy Correlation number Ratio matching Correlation matrix Geological characteristics |
| 本文献已被 SpringerLink 等数据库收录！ |
|
