Development of geochemical tracers to identify a specific source region of mineral dust in China and preliminary test of their applicability SCOPUS KCI

Title
Development of geochemical tracers to identify a specific source region of mineral dust in China and preliminary test of their applicability
Author(s)
Lee, S.; Hyeong, K.; Kim, W.; Kim, T.-H.
KIOST Author(s)
Hyeong, Ki Seong(형기성)Kim, Won Nyon(김원년)
Alternative Author(s)
이소정; 형기성; 김원년
Publication Year
2019
Abstract
The purpose of this study is to develop geochemical tracers to identify a specific source desert of mineral dust in China using the published data. In addition, we tested the applicability of these tracers to wet-deposits and soil samples collected in Jeju, Korea. Because of similarity in trace elemental compositions of mineral dust from the major arid regions in China, such as Taklimakan, West Ordos (Badain Jaran), East Ordos (Mu Us and Hobq), East Northern China (Horqin), West Northern China (Gurbantunggut), and Chinese Loess Plateau, there has been limited to the use of geochemical data for source identification. Here we propose the four (4) plots using combination of seven (7) geochemical variables as a source indicator to distinguish one from other source regions in China(Formula presented) stand for values normalized to Post-Archean (Formula presented) Average Shale composition and Ce anomaly, respectively. Mineral dusts from aforementioned six major deserts are distinguished one from the others by the combined use of these variables. Jeju rock and soil samples form a separate domain from Chinese mineral dusts in all four plots. In contrast, most of Jeju dust (Formula presented) samples were comparable with the West Ordos desert (Badain Jaran) domain, indicative of strong influence of Badain Jaran dust in Jeju in spring season when the mineral dust was collected. A weak positive Ce anomaly in Jeju samples implies minimal local contribution. Our study suggests that the combination of (Formula presented) can be used to identify a specific source region of (Formula presented) mineral dust in China as well as Jeju mineral particles. © 2019, Korea Ocean Research and Development Institute. All rights reserved.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/727
DOI
10.4217/OPR.2019.41.3.169
Bibliographic Citation
Ocean and Polar Research, v.41, no.3, pp.169 - 181, 2019
Publisher
Korea Ocean Research and Development Institute
Subject
aerosol composition; desert; dust; geochemistry; mineral; particulate matter; point source; rare earth element; trace element; tracer; Cheju [South Korea]; China; South Korea
Keywords
Chinese deserts; Geochemical tracer; Jeju Island; Mineral dust; Rare earth element; Trace element
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
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