IEECAS OpenIR  > 古环境研究室
Application of XRF Scanning to Different Geological Archives
Guo, Fei1,2; Clemens, Steven3; Liu, Xingxing1,4; Long, Yili1,2; Li, Dong1,2; Tan, Liangcheng1,4,5; Liu, Chengcheng1,2; Yan, Hong1,4,5; Sun, Youbin1,4,5
Corresponding AuthorGuo, Fei(guofei@ieecas.cn) ; Sun, Youbin(sunyb@ieecas.cn)
2021-09-01
Source PublicationEARTH AND SPACE SCIENCE
Volume8Issue:9Pages:20
AbstractHigh-resolution XRF scanning is widely used on marine and lake sediment cores as a means of rapidly acquiring elemental concentrations from closely spaced intervals with no damage to the samples. Therefore, guidance on how to obtain reliable datasets and select suitable step sizes for different geological media are of great importance. Here we apply this efficient analytical method to loess, stalagmite, and tridacna samples. The results show that 11 elements (Al, Si, K, Ca, Ti, Mn, Fe, Rb, Sr, Zr, and Ba), eight elements (Ca, Si, K, Fe, Cu, Ni, Sc, and Sr) and seven elements (Ca, Sr, Cu, Fe, Sc, Ni, and Si) can be robustly detected by this method for loess, stalagmite and tridacna archives respectively, demonstrating the capacity to reconstruct high-resolution paleoclimate changes. For loess cores, efficiency emission decay of the X-ray tube, water content, matrix, and grain size effects are the main factors influencing elemental intensities. The efficiency emission decay of the X-ray tube, scanning path, scanning interval, and radiation area have a significant effect on element intensities of stalagmite and tridacna samples. Based on our investigations, we suggest optimal resolutions for scanning these three archives for millennial to seasonal-scale paleoclimatic reconstructions. We compare our analyses with existing results from traditional (discrete) analyses, demonstrating similar scales of variability. Our results suggest that geochemical proxies measured by XRF scanning, such as Rb/Sr, Zr/Rb, and Ca/Ti ratios of loess and the Sr/Ca ratio of speleothem and tridacna, can be effectively used to reconstruct high-resolution paleoclimate changes.
KeywordXRF scanning analytical method loess stalagmite tridacna paleoclimate
DOI10.1029/2020EA001589
WOS KeywordINTERTROPICAL CONVERGENCE ZONE ; TRACE-ELEMENT ; TRIDACNA-GIGAS ; REEF ENVIRONMENT ; STABLE-ISOTOPES ; NORTH-ATLANTIC ; STORM SURGES ; GIANT CLAMS ; RESOLUTION ; SPELEOTHEMS
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41525008] ; National Key Research and Development Program of China[2016YFA0601902] ; State Key Laboratory of Loess and Quaternary Geology, IEECAS[SKLLQG1808]
WOS Research AreaAstronomy & Astrophysics ; Geology
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; State Key Laboratory of Loess and Quaternary Geology, IEECAS
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary
WOS IDWOS:000702253100009
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17059
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorGuo, Fei; Sun, Youbin
Affiliation1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA
4.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao, Peoples R China
Recommended Citation
GB/T 7714
Guo, Fei,Clemens, Steven,Liu, Xingxing,et al. Application of XRF Scanning to Different Geological Archives[J]. EARTH AND SPACE SCIENCE,2021,8(9):20.
APA Guo, Fei.,Clemens, Steven.,Liu, Xingxing.,Long, Yili.,Li, Dong.,...&Sun, Youbin.(2021).Application of XRF Scanning to Different Geological Archives.EARTH AND SPACE SCIENCE,8(9),20.
MLA Guo, Fei,et al."Application of XRF Scanning to Different Geological Archives".EARTH AND SPACE SCIENCE 8.9(2021):20.
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