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245 _aPalaeoclimatic and palaeoenvironmental implications of late-Pleistocene aeolian sand in the Jin-Shaan Gorges of the Yellow River valley revealed by luminescence chronology/
260 _bSage,
_c2019.
300 _aVol 29, issue 6, 2019 : (964-974 p.).
520 _aRiver valleys are critical water-gas-rock interactions zone, where close interaction between fluvial and aeolian deposition are a pronounced feature in arid, semi-arid, and semi-humid environments. Pedo-sedimentological investigations were carried out in the Jin-Shaan Gorges of the Yellow River valley. Two late-Pleistocene and Holocene aeolian sand-loess profiles were identified within the cliff riverbank. The aim of this study is to reveal the palaeoclimatic conditions and driving factors for the formation of palaeo-aeolian sand in the Jin-Shaan Gorges of the Yellow River valley. Five samples were taken from the aeolian sand-loess profiles for optically stimulated luminescence (OSL) dating. The OSL ages are in stratigraphic order and range from 12.8 ± 0.7 ka to 11.8 ± 1.0 ka. By combining OSL ages with additional stratigraphic correlations, the deposition period of the palaeo-aeolian sand is dated to 12.5–11.8 ka, which would place it at the Younger Dryas (YD) time interval that punctuated the last glacial-Holocene transition period. The formation of palaeo-aeolian sand in the region was due to sufficient sediment supply from the riverbed sand of the Yellow River, strong East Asian winter monsoon, and strong wind erosion. These results give insights into the palaeoclimatic and palaeoenvironmental conditions for the formation of aeolian sand associated with the river valleys in semi-arid and sub-humid regions.
650 _aEast Asian winter monsoon,
_951823
650 _afluvial–aeolian interaction,
_951824
650 _aJin-Shaan Gorges,
_951825
650 _aOSL dating,
_951826
650 _a Yellow River,
_951827
650 _a Younger Dryas
_951828
700 _aHuang, Chun Chang
_951829
700 _aTan, Zhihai
_951830
700 _a Haijun Qiu,
_951831
700 _aChen, Yinglu
_951832
700 _aCuan, Yuda
_951833
700 _aZhao, Hui
_951834
700 _aTan, Zihui
_951835
700 _a Zou, Mingbo
_951836
700 _aWang, Jiahui
_951837
700 _aZhang, Yuxiang
_951838
773 0 _012756
_916504
_dLondon: Sage Publication Ltd, 2019.
_tHolocene/
_x09596836
856 _uhttps://doi.org/10.1177/0959683619831421
942 _2ddc
_cART
999 _c12822
_d12822