Application of Avaatech X-ray fluorescence core-scanning in Sr/Ca analysis of speleothems

被引：13

作者：

Li, Dong ^{[1
,2
]}

Tan, Liangcheng ^{[1
,3
,4
,5
]}

Guo, Fei ^{[1
,2
]}

Cai, Yanjun ^{[1
,3
,4
,5
]}

Sun, Youbin ^{[1
,3
]}

Xue, Gang ^{[1
,2
]}

Cheng, Xing ^{[1
,2
]}

Yan, Hong ^{[1
,3
]}

Cheng, Hai ^{[4
,6
]}

Edwards, R. Lawrence ^{[6
]}

Gao, Yongli ^{[7
]}

Kelley, Jessica ^{[7
]}

机构：

[1] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China

[4] Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Shaanxi, Peoples R China

[5] Pilot Natl Lab Marine Sci & Technol, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Shandong, Peoples R China

[6] Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA

[7] Univ Texas San Antonio, Dept Geol Sci, San Antonio, TX 78249 USA

来源：

SCIENCE CHINA-EARTH SCIENCES | 2019年 / 62卷 / 06期

关键词：

Avaatech XRF; Speleothem; Sr/Ca; Paleoclimate; ASIAN MONSOON; SUMMER MONSOON; INDIAN MONSOON; TRACE-ELEMENTS; STALAGMITE; RECORDS; CAVE; XRF; CLIMATE; HYDROCLIMATE;

D O I：

10.1007/s11430-018-9344-2

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Application of X-ray fluorescence core-scanning (XRF-CS) on both marine and lake sediments has achieved remarkable results. However, its application has not been widely extended to the research on speleothems. In this study, we measure the Sr abundance and the Sr/Ca ratios of three stalagmites (two aragonite stalagmites, one calcite stalagmite) using the state-of-the-art fourth-generation Avaatech high-resolution XRF core scanner. Through comparisons among different scan paths and among different scan resolutions, as well as comparisons with inductively coupled plasma optical emission spectrometer (ICP-OES), Itrax XRF, and Artax XRF results, we confirm that the Avaatech XRF core scanner could precisely, quickly, and non-destructively analyze the high-resolution Sr abundance of speleothems. Furthermore, we combine the stalagmite O-18 records to explore the paleoclimatic significance of the measured stalagmite Sr/Ca.

引用

页码：964 / 973

页数：10

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