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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (4): 1000-1008    DOI: 10.7522/j.issn.1000-694X.2013.00142
Desert and Desertification     
Characteristics of Heavy Mineral in Coarse Sediment and Its Indicative Significance in the Ningxia-Inner Mongolia Section of the Yellow River
SHI Xiao-meng, JIA Xiao-peng, WANG Hai-bing, WANG Hong-fang
Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
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Abstract  

In recent years, sediment aggradation is growing more and more serious in the Ningxia-Inner Mongolia section of the Yellow River. Coarse sediment sources in this section of the Yellow River is becoming a focus of scientific research because the area is a national energy basement and a main grain production area of Northwest China. Heavy mineral wears erosion with a strong stability, and is able to retain most of the information and characteristics of its parent rock, and is therefore being used for source analysis. In the paper, 27 samples were conducted to analyze characteristics of heavy mineral in coarse sediment in the Ningxia-Inner Mongolia section of the Yellow River. The results show that heavy mineral in this section is rich in amphibole, which is unstable by nature, as well as limonite and epidote which are relatively stable. Stable mineral such as zircon, rutile, yellow iron ore and tourmaline content is extremely low, except corundum and ilmenite. Stability coefficients are the lowest in Hedong Sandy Land, Ulan Buh Desert and Ten Watershed, and almost close to zero. It indicates that in the three sections of the Yellow River, sediments originate from the nearby sand sources imported by different forms. ZTR index in this research area is extremely low, with the average content of 0.0071, illustrating an extremely lower heavy mineral maturity in the Ningxia-Inner Mongolia section of the Yellow River. The correlation coefficient gives three different types of mineral assemblages, indicating different types of parent rock and source environment.

Key words:  the Yellow River      Ningxia-Inner Mongolia section      coarse sediment      heavy mineral      indicative significance     
Received:  04 June 2012      Published:  18 July 2012
ZTFLH:  P596  

Cite this article: 

SHI Xiao-meng, JIA Xiao-peng, WANG Hai-bing, WANG Hong-fang. Characteristics of Heavy Mineral in Coarse Sediment and Its Indicative Significance in the Ningxia-Inner Mongolia Section of the Yellow River. JOURNAL OF DESERT RESEARCH, 2013, 33(4): 1000-1008.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00142     OR     http://www.desert.ac.cn/EN/Y2013/V33/I4/1000

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