Hf-Nd isotopic variability in mineral dustfrom Chinese and Mongolian deserts:implications for sources and dispersal | |
Zhao,WC(Zhao,Wancang)[1,2]; Sun,YB(Sun,Youbin)[3]; Balsam,W(Balsam,William)[4]; Lu,HY(Lu,Huayu)[5]; Liu,LW(Liu,Lianwen)[1]; Chen,J(Chen,Jun)[1]; Ji,JF(Ji,Junfeng)[1] | |
2014-07-25 | |
发表期刊 | SCIENTIFIC REPORTS |
卷号 | 4页码:5837 |
文章类型 | 期刊论文 |
摘要 | Mineral dust provenances are closely related to the orogenic processes which may have distinct Hf-Nd isotopic signatures. Here we report the clay-sized (,2 mm) Hf-Nd isotope data from Asian dust sources to better constrain the source and transport dynamics of dust deposition in the North Pacific. Our results show that there is a more positive radiogenic Hf isotopic composition with clay-sized fractions than the corresponding bulk sample and a decoupling of the Hf-Nd couplets in the clay formation during the weathering process. The clay-sized Hf-Nd isotopic compositions of the desert samples from the Sino-Korean-Tarim Craton (SKTC) are different from those of the Gobi and deserts from the Central Asian Orogeny Belt (CAOB) due to varying tectonic and weathering controls. The Hf-Nd isotopic compositions of dust in the North Pacific central province (NPC) match closely with those from the Taklimakan, Badain Jaran and adjacent Tengger deserts, implying that the NPC dust was mainly transported from these potential sources by the westerly jet. Our study indicates that dusts from the CAOB Gobi deserts either didn’t arrive in NPC or were quantitatively insignificant, but they were likely transported to the North Pacific margin province (NPM) by East Asian winter monsoon. |
DOI | 10.1038/srep05837 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9865 |
专题 | 古环境研究室 |
通讯作者 | Ji,JF(Ji,Junfeng)[1] |
作者单位 | 1.Key Laboratory of Surficial Geochemistry, Ministry of Education; School of Earth Sciences and Engineering, Nanjing University,Nanjing 210023, China; 2.Ningxia Geophysical and Geochemical Exploration Institute, Yinchuan 710001, China; 3.SKLLQG,Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China; 4.Department of Earth Sciences, DartmouthCollege, Hanover, New Hampshire, USA; 5.School of Geographic and Oceanographic Sciences, Institute for Climate and GlobalChange Research, Nanjing University, Nanjing 210023, China |
推荐引用方式 GB/T 7714 | Zhao,WC,Sun,YB,Balsam,W,et al. Hf-Nd isotopic variability in mineral dustfrom Chinese and Mongolian deserts:implications for sources and dispersal[J]. SCIENTIFIC REPORTS,2014,4:5837. |
APA | Zhao,WC.,Sun,YB.,Balsam,W.,Lu,HY.,Liu,LW.,...&Ji,JF.(2014).Hf-Nd isotopic variability in mineral dustfrom Chinese and Mongolian deserts:implications for sources and dispersal.SCIENTIFIC REPORTS,4,5837. |
MLA | Zhao,WC,et al."Hf-Nd isotopic variability in mineral dustfrom Chinese and Mongolian deserts:implications for sources and dispersal".SCIENTIFIC REPORTS 4(2014):5837. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Hf-Nd isotopic varia(812KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论