Abstract
Deciphering the eolian sources is critical to understand the paleo-significance of the Quaternary eolian deposits (the Xiashu loess) in the lower reaches of the Yangtze River. Both a local source from the fluvial sediments of the Yangtze River and a distal source from the northern deserts similar to that of the loess on the Chinese Loess Plateau (CLP) have been proposed. Recent researches show great advantages of detrital zircon ages as a source tracer for Asian dust based on the laser ablation U-Pb isotopic dating technique. This work presents the U-Pb ages of zircon grains extracted from the Xiashu loess. The results indicate that the Xiashu loess has a very different age distribution of zircon grains from that of the loess on the CLP as well as the materials in the arid lands of the Asian Interior. Instead, the zircon ages of the Xiashu loess are indistinguishable from the fluvial sediments of the Yangtze River, indicating the dominance of proximal dust source. Proximal source of the Xiashu loess implies that extensive eolian processes might have existed in the currently wet South China, possibly in response to the full glacial conditions after the middle Pleistocene transition of global climate.
Similar content being viewed by others
References
Ding ZL, Xiong SF, Sun JM et al (1999) Palaeogeogr Palaeoclimatol Palaeoecol 152:4966
Guo ZT, Ruddiman WF, Hao QZ et al (2002) Nature 416:159–163
An ZS, Kutzbach JE, Prell WL et al (2001) Nature 411:62–66
Chen FH, Bloemendal J, Wang JM et al (1997) Palaeogeogr Palaeoclimatol Palaeoecol 130:323–335
Chen J, An ZS, Liu LW et al (2001) Sci China Ser D Earth Sci 44:403–413
Sun JM (2002) Earth Planet Sci Lett 203:845–859
Sun YB, Tada RJ, Chen JC et al (2008) Geophys Res Lett 35:L01804. doi:10.1029/2007GL031672
Li G, Chen J, Chen Y et al (2007) J Geophys Res 112:D17201. doi:10.1029/2007JD008676
Li G, Chen J, Chen Y (2013) Geochim Cosmochim Acta 103:26–35
Chen J, Li GJ, Yang JD et al (2007) Geochim Cosmochim Acta 71:3904–3914
Li G, Chen J, Ji J et al (2009) Geology 37:727–730
Chen J, Li G (2011) Sci China Earth Sci 54:1279–1301
Xiong S, Sun D, Ding Z (2002) J Quat Sci 17:181–191
Xiong S, Ding Z, Liu D (1999) Chin Sci Bull 44:1690–1693
Li XS, Yang DY, Lu HY (2001) Mar Geol Quat Geol 21:25–32
Li XS, Yang DY, Lu HY et al (1997) Mar Geol Quat Geol 13:73–81
Jia Y, Lai Z, Zhang J et al (2012) Quat Geochronol 10:44–49
Hong H, Wang C, Zeng K et al (2013) Sediment Geol 290:97–108
Qiao Y, Hao Q, Peng S et al (2011) Palaeogeogr Palaeoclimatol Palaeoecol 308:513–523
Hao Q, Guo Z, Qiao Y et al (2010) Quat Sci Rev 29:3317–3326
Qiao YS, Guo ZT, Hao QZ et al (2003) Chin Sci Bull 48:2088–2093
Chen Y, Li X, Han Z et al (2008) J Geogr Sci 18:341–352
Zhang WG, Yu LZ, Lu M et al (2007) Earth Planet Sci Lett 260:86–97
Zhang WG, Yu LZ, Lu M et al (2009) Quat Sci Rev 28:345–353
Yang SY, Li CX, Yang DY et al (2004) Quat Int 117:27–34
Mao CP, Chen J, Yuan XY et al (2011) Chin Sci Bull 56:2371–2378
Xie J, Wu FY, Ding ZL (2007) Acta Petrol Sin 23:523–528
Xie J, Yang S, Ding Z (2012) Sci China Earth Sci 55:1837–1846
Che X, Li G (2013) Quat Res. doi:10.1016/j.yqres.2013.05.007
Xiao G, Zong K, Li G et al (2012) Geophys Res Lett 39:L20715
Pullen A, Kapp P, McCallister AT et al (2011) Geology 39:1031–1034
Stevens T, Palk C, Carter A et al (2010) Geol Soc Am Bull 122:1331–1344
Stevens T, Carter A, Watson TP et al (2013) Quat Sci Rev. doi:10.1016/j.quascirev.2012.11.032
Zheng H, Clift PD, Wang P et al (2013) Proc Natl Acad Sci USA 110:7556–7561
Yang S, Zhang F, Wang Z (2012) Chem Geol 296–297:26–38
Lai Z, Zhang W, Chen X et al (2010) Quat Geochronol 5:154–158
Vermeesch P (2012) Chem Geol 312–313:190–194
Li G, Pettke T, Chen J (2011) Geology 39:199–202
Chen Z, Li G (2013) Earth Planet Sci Lett 371–372:220–225
Elderfield H, Ferretti P, Greaves M et al (2012) Science 337:704–709
Acknowledgments
The authors would like to thank Zhong Chen, Tao Li and Wenfang Zhang for their joint fieldwork. We are most grateful to Bin Wu for assistance in the LA-ICP-MS laboratory. This work was supported by the National Natural Science Foundation of China (41102103, 41173105 and 41321062).
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Liu, F., Li, G. & Chen, J. U-Pb ages of zircon grains reveal a proximal dust source of the Xiashu loess, Lower Yangtze River region, China. Chin. Sci. Bull. 59, 2391–2395 (2014). https://doi.org/10.1007/s11434-014-0318-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11434-014-0318-2