In-situ and meteoric 10 Be and 26 Al measurements: Improved preparation and application at the University of Tokyo
作者: Yusuke YokoyamaMasako YamaneAtsunori NakamuraYosuke MiyairiKazuho HoriuchiTakahiro AzeHiroyuki MatsuzakiYoshiki ShirahamaYuka Ando
作者单位: 1Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
2Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
3Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, Natsushima 2-15, Yokosuka, Kanagawa 237-0061, Japan
4Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 7, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan
5Graduate School of Science and Technology, Hirosaki University, Japan
6Micro Analysis Laboratory, Tandem Accelerator (MALT), The University of Tokyo, Japan
刊名: Nuclear Inst. and Methods in Physics Research, B, 2019, Vol.455 , pp.260-264
来源数据库: Elsevier Journal
DOI: 10.1016/j.nimb.2019.01.026
关键词: Cosmogenic nuclidesChemical preparation
英文摘要: Abstract(#br)Cosmogenic radionuclides have been widely used to decipher Earth surface processes. At the University of Tokyo Accelerator Mass Spectrometry facility (5 MV Tandem accelerator), we have been measuring both in-situ and meteoric cosmogenic 10 Be and 26 Al. In this paper, we report some development of methodology, including how to prepare target samples chemically to reduce their background. We then introduce some examples using the method to provide further insights into earth surface processes. These studies include: i) exposure dating to identify the growths and decays of the Antarctic ice sheet, ii) understanding ice shelf collapse history, iii) paleomagnetic excursion history reconstructions using ice cores, iv) understanding the erosion rates using depth profiles of mid...
全文获取路径: Elsevier  (合作)

  • preparation 预备
  • meteoric 流星的
  • Tokyo 东京
  • application 申请