Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/srep05837 |
Hf-Nd isotopic variability in mineral dust from Chinese and Mongolian deserts: implications for sources and dispersal | |
Zhao, Wancang1,2; Sun, Youbin3; Balsam, William4; Lu, Huayu5; Liu, Lianwen1; Chen, Jun1; Ji, Junfeng1 | |
通讯作者 | Ji, Junfeng |
来源期刊 | SCIENTIFIC REPORTS
![]() |
ISSN | 2045-2322 |
出版年 | 2014 |
卷号 | 4 |
英文摘要 | 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 mu m) 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. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000339421300018 |
WOS关键词 | MARINE-SEDIMENTS ; PACIFIC-OCEAN ; EOLIAN DUST ; ICE CORE ; LU-HF ; SR ; HAFNIUM ; SEAWATER ; PROVENANCE ; TRANSPORT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
来源机构 | 南京大学 ; 中国科学院地球环境研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184916 |
作者单位 | 1.Nanjing Univ, Minist Educ, Key Lab Surficial Geochem, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China; 2.Ningxia Geophys & Geochem Explorat Inst, Yinchuan 710001, Peoples R China; 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China; 4.Dartmouth Coll, Dept Earth Sci, Hanover, NH 03755 USA; 5.Nanjing Univ, Inst Climate & Global Change Res, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Wancang,Sun, Youbin,Balsam, William,et al. Hf-Nd isotopic variability in mineral dust from Chinese and Mongolian deserts: implications for sources and dispersal[J]. 南京大学, 中国科学院地球环境研究所,2014,4. |
APA | Zhao, Wancang.,Sun, Youbin.,Balsam, William.,Lu, Huayu.,Liu, Lianwen.,...&Ji, Junfeng.(2014).Hf-Nd isotopic variability in mineral dust from Chinese and Mongolian deserts: implications for sources and dispersal.SCIENTIFIC REPORTS,4. |
MLA | Zhao, Wancang,et al."Hf-Nd isotopic variability in mineral dust from Chinese and Mongolian deserts: implications for sources and dispersal".SCIENTIFIC REPORTS 4(2014). |
条目包含的文件 | 条目无相关文件。 |
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。