[1]GAO Chen-jing,LIU Qian,WANG Yan-xin,et al.Grain-size Characteristics of Sand Materials in Tamarix Cone Sedimentary Veins and Wind Sandy Environment Change in the Southern Region of Taklimakan Desert[J].Research of Soil and Water Conservation,2014,21(03):41-46.
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Grain-size Characteristics of Sand Materials in Tamarix Cone Sedimentary Veins and Wind Sandy Environment Change in the Southern Region of Taklimakan Desert
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 03
Page number:
41-46
Column:
Public date:
2014-06-28
- Title:
- Grain-size Characteristics of Sand Materials in Tamarix Cone Sedimentary Veins and Wind Sandy Environment Change in the Southern Region of Taklimakan Desert
- CLC:
- P467
- DOI:
- -
- Abstract:
- The clear sedimentary veins of Tamarix Cone, can not only date the age, but also has important instruction significance to restore regional historical climate environment. This paper selects three sample points’ grain size parameters, sand material anomaly values and Sahu discriminant function which are in Tamarix Cone sand materials in the south margin of Taklimakan Desert. We combined with the software of calculation and analysis such as SPSS 17.0, Sigma Plot and Excel 2007, aimed to restore the region hundreds years of wind sandy environment changes. The analysis results of sand material grain size characteristics we got are as followings. The sand transport power of sample point B is the strongest, and the sedimentary materials are dominated by saltating and slow-moving, which means that the sedimentary environment of the sample point B is more stable. On the other hand, sample point C of deposition is given priority to with suspended matter. Through the sample points location relations and determination, the Tamarix Cone of this region mainly consists of eolian sand. The sand material granularity sequences show that the region climate gradually from drought to wet in two hundred of years. The change phase of wind sandy environment includes that the weaker wind-sandy action was from 1801 to 1872; the significantly stronger action was from 1872 to 1902; the normal strength was from 1903 to 1984; the significant decline of wind-sandy action was from 1985 to 2010.
- References:
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