| 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
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| Corresponding Author | Guo, Fei(guofei@ieecas.cn) ; Sun, Youbin(sunyb@ieecas.cn) |
| 2021-09-01 | |
| Source Publication | EARTH AND SPACE SCIENCE
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| Volume | 8Issue:9Pages:20 |
| Abstract | High-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. |
| Keyword | XRF scanning analytical method loess stalagmite tridacna paleoclimate |
| DOI | 10.1029/2020EA001589 |
| WOS Keyword | INTERTROPICAL CONVERGENCE ZONE ; TRACE-ELEMENT ; TRIDACNA-GIGAS ; REEF ENVIRONMENT ; STABLE-ISOTOPES ; NORTH-ATLANTIC ; STORM SURGES ; GIANT CLAMS ; RESOLUTION ; SPELEOTHEMS |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | National 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 Area | Astronomy & Astrophysics ; Geology |
| Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China ; State Key Laboratory of Loess and Quaternary Geology, IEECAS |
| WOS Subject | Astronomy & Astrophysics ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000702253100009 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Guo, Fei; Sun, Youbin |
| Affiliation | 1.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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