Vertical distribution of 10Be, 26Al, and 36Cl in the surface soil layer of weathered granite at Abukuma, Japan
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS(2010)
摘要
The northern Abukuma region of Japan is thickly covered by weathered Mesozoic granite. We investigated the vertical distribution of radionuclides (Be-10, Al-26, and Cl-36) produced by cosmic irradiation of weathered granitic soil collected from this region at a sampling site located 496 m above sea level, at 37 degrees 30'52.6 " N, 140 degrees 40'13.2 " E. We mechanically and chemically separated quartz particles from the weathered granitic soil, and purified them. We also analyzed the vertical distribution of Al-26, Be-10, and Cl-36 and estimated a long term averaged erosion rates of 0.019 +/- 0.001 mm/y from Al-26, 0.017 +/- 0.001 mm/y from Be-10, and similar to 0.01 +/- 0.001 mm/y from Cl-36. These cosmogenic erosion rates are comparable to the rate estimated from a geomorphological evolution model and with the observed sedimentary deposition rate at Abukuma. (C) 2009 Elsevier B.V. All rights reserved.
更多查看译文
关键词
AMS measurement,Cosmogenic radionuclides,Erosion rate,Weathered granite
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要