Uranium isotopic constraints on the nature of the prehistoric flood at the Lajia site, China
文献类型：期刊论文
| 作者 | Li, Le1,5; Chen, Jun1; Hedding, David William4; Fu, Yuanhe1; Ye, Maolin3; Li, Gaojun1,2 |
| 刊名 | GEOLOGY
 |
| 出版日期 | 2020 |
| 卷号 | 48期号:1页码:15-18 |
| ISSN号 | 0091-7613 |
| DOI | 10.1130/G46306.1 |
| 通讯作者 | Li, Gaojun(ligaojun@nju.edu.cn) |
| 英文摘要 | The catastrophic landslide-dam outburst flood, possibly caused by the same earthquake that destroyed the well-dated Lajia archaeological site, in the upper reaches of the Yellow River in China, may provide an accurate constraint on the age of the first Chinese dynasty (Xia Dynasty), which, according to Chinese ancient documents, has been associated with flood-control activities. The key link between the destructive earthquake and the megaflood is a flood-related blackish sand layer (BSL) covering the Lajia site on terraces high above the Yellow River channel. However, the BSL, which mainly consists of debris of local schist, may have originated from mudflows in local gullies rather than an outburst flood from the Yellow River that swept predominantly schist debris from channel slopes and/or a landslide dam. The composition of the fine particles in the BSL can help to discriminate the provenance of the BSL because an outburst flood would consist of suspended particles from the Yellow River, while a mudflow origin would incorporate fine particles from the local gullies. However, the similar geological origin between the Yellow River sediments and the Quaternary eolian loess and Tertiary reddish clay sediments that feed the local gullies precludes the application of traditional geochemical source tracers. This work shows that the U-234/U-238 activity ratio, which reflects the comminution age, of the fine particles in the BSL is very similar to that of the Yellow River sediments but not to the sediments in the local gullies, supporting an outburst flood origin of the BSL. Thus, the emergence of the Xia Dynasty can be constrained to be shortly after the sudden destruction of the Lajia site, if the outburst flood is the same event that initiated nationalization as described in the Chinese ancient documents. |
| WOS关键词 | ND ; DUST ; TH |
| 资助项目 | National Science Foundation of China[41730101] ; National Science Foundation of China[41877351] ; National Research Foundation-South Africa[110777] ; China Scholarship Council Fellowship |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000505235200005 |
| 出版者 | GEOLOGICAL SOC AMER, INC |
| 资助机构 | National Science Foundation of China ; National Research Foundation-South Africa ; China Scholarship Council Fellowship |
| 源URL | [http://ir.ieecas.cn/handle/361006/13122]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Li, Gaojun |
| 作者单位 | 1.Nanjing Univ, Dept Earth & Planetary Sci, Key Lab Surficial Geochem, Minist Educ, 163 Xianlindadao, Nanjing 210023, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China 3.Chinese Acad Social Sci, Inst Archaeol, Beijing 100710, Peoples R China 4.Univ South Africa, Dept Geog, Pioneer Ave, ZA-1710 Florida, South Africa 5.Univ Southern Calif, Dept Earth Sci, 3651 Trousdale Pkwy, Los Angeles, CA 90089 USA |
| 推荐引用方式 GB/T 7714 | Li, Le,Chen, Jun,Hedding, David William,et al. Uranium isotopic constraints on the nature of the prehistoric flood at the Lajia site, China[J]. GEOLOGY,2020,48(1):15-18. |
| APA | Li, Le,Chen, Jun,Hedding, David William,Fu, Yuanhe,Ye, Maolin,&Li, Gaojun.(2020).Uranium isotopic constraints on the nature of the prehistoric flood at the Lajia site, China.GEOLOGY,48(1),15-18. |
| MLA | Li, Le,et al."Uranium isotopic constraints on the nature of the prehistoric flood at the Lajia site, China".GEOLOGY 48.1(2020):15-18. |
入库方式： OAI收割
来源：地球环境研究所
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