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Can I read Hf–Nd–Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport on EtoBox?
Hf–Nd–Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport by Ting Wei; Janice Brahney; Zhiwen Dong; Shichang Kang; Chunlei Zong; Junming Guo; Ling Yang; Xiang Qin is a Environmental Science article available to read on EtoBox.
What is Hf–Nd–Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport about?
Large areas of arid regions in the Tibetan Plateau (TP) are undergoing desertification and subsequent aeolian emission and transport. The contribution of TP soils to the atmospheric aerosol burden in Asia and elsewhere is not known. Here, we use Hf, Nd, and Sr isotopes to distinguish the TP from other Asian dustproducing regions and compare the signatures to sediments in major dust sink regions. We found that the Hf-Nd-Sr isotopes of TP soils showed unique spatial signatures. From north to south, 87 Sr/ 86 Sr ratios gradually increased, while ε Nd and ε Hf values gradually decreased; from west to east, 87 Sr/ 86 Sr and ε Hf gradually increased, while ε Nd changed indistinctly. The Hf-Nd-Sr isotopic compositions of TP soils were controlled by four geographic isotope regions: the northern, southern, western, and eastern TP. Compared with Asian large deserts, the TP showed a unique isotopic composition, which together exhibited a significant spatial change across Asia. Compared to dust isotopes in prominent sink areas, we found that the TP is an important dust source to eastern TP glaciers, the Chinese Loess Plateau, South China Sea, Japan, and Greenland. This study provides clear iso
Who reads Hf–Nd–Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Ting Wei; Janice Brahney; Zhiwen Dong; Shichang Kang; Chunlei Zong; Junming Guo; Ling Yang; Xiang Qin
- Publisher
- American Chemical Society (ACS)
- Published
- 2021
- Language
- EN
- Field
- Environmental Science (Physical Sciences)