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Cosmogenic nuclides (10Be and 26Al) erosion rate constraints in the Badain Jaran Desert, northwest China: implications for surface erosion mechanisms and landform evolution
Tong Zhao; Wenjing Liu; Zhifang Xu; Taoze Liu; Sheng Xu; Lifeng Cui; Chao Shi
2019
Source PublicationGeosciences Journal (IF:1.095[JCR-2016],1.0[5-Year])
Volume23Issue:1Pages:59-68
Abstract

Both tectonics and climate affect surface erosion and change the landform. Long-term surface erosion rates determined by in situ produced cosmogenic nuclides are useful quantitative constraints for landform evolution in geological time scale. Measurements of cosmogenic 10Be and 26Al in the granitic rocks exposed in the Badain Jaran Desert, give a mean erosion rate of 7.3 ± 2.6 m/Ma, which is an order of magnitude higher than those reported in other extremely arid regions. Tectonic activity is supposed to be the first order control on regional erosion rate by comparing the 10Be erosion rates of arid regions with different precipitation ranges and tectonic activities worldwide. However the higher erosion rates in the Badain Jaran Desert compared with other arid regions within the stable tectonic background were attributed to the wind erosion and periodically warmer and wetter climate since late Pleistocene. Besides, the estimated eroded mass flux of 7.8 × 104 t/y suggests that erosion products of bedrocks in the Badian Jaran Desert only contribute minor desert deposits, which indicates massive exogenous materials input to the desert.

Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10913
Collection环境地球化学国家重点实验室
Affiliation1.Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, No. 19, Beitucheng Western Road, Chaoyang District, Beijing, 100029, China
2.CAS Center for Excellence in Life and Paleoenvironment, Beijing, 100044
3.China University of Chinese Academy of Sciences, Beijing, 100049, China
4.Earth and Environmental Systems Institute and Department of Geosciences, Pennsylvania State University, University Park, PA, 16802, USA
5.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, China
6.Scottish Universities Environmental Research Center, East Kilbride, G75 0QF, UK
Recommended Citation
GB/T 7714
Tong Zhao,Wenjing Liu,Zhifang Xu,et al. Cosmogenic nuclides (10Be and 26Al) erosion rate constraints in the Badain Jaran Desert, northwest China: implications for surface erosion mechanisms and landform evolution[J]. Geosciences Journal,2019,23(1):59-68.
APA Tong Zhao.,Wenjing Liu.,Zhifang Xu.,Taoze Liu.,Sheng Xu.,...&Chao Shi.(2019).Cosmogenic nuclides (10Be and 26Al) erosion rate constraints in the Badain Jaran Desert, northwest China: implications for surface erosion mechanisms and landform evolution.Geosciences Journal,23(1),59-68.
MLA Tong Zhao,et al."Cosmogenic nuclides (10Be and 26Al) erosion rate constraints in the Badain Jaran Desert, northwest China: implications for surface erosion mechanisms and landform evolution".Geosciences Journal 23.1(2019):59-68.
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