Measurements of beryllium isotopes in ice wedges in Alaska
作者: Kazuho HoriuchiHiroshi OhnoGo IwahanaYoshinori IizukaHiroyuki Matsuzaki
作者单位: 1Graduate School of Science and Technology, Hirosaki University, Hirosaki, Aomori 036-8561, Japan
2Department of Civil and Environmental Engineering, Kitami Institute of Technology, Kitami, Hokkaido 090-8507, Japan
3International Arctic Research Center, University of Alaska Fairbanks, Fairbanks AK99775-7340, USA
4Institute of Low Temperature Science, Hokkaido University, Sapporo, Hokkaido 060-0819, Japan
5Micro Analysis Laboratory, Tandem Accelerator (MALT), The University Museum, The University of Tokyo, 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
刊名: Nuclear Inst. and Methods in Physics Research, B, 2019, Vol.459 , pp.64-70
来源数据库: Elsevier Journal
DOI: 10.1016/j.nimb.2019.07.046
关键词: 10 Be9 BeGround iceIce wedgePermafrostSurface water
英文摘要: Abstract(#br)To explore the possibility of using ground ice archives for studies of the cosmogenic radionuclide 10 Be, we analyzed the beryllium isotopes in ice wedges exposed in the Cold Regions Research and Engineering Laboratory (CRREL) Permafrost Tunnel and the Barrow Permafrost Tunnel in Alaska. We determined the concentrations of 10 Be and 9 Be in samples pretreated following two procedures: acidification before (procedure A) and after (procedure B) removal of particles. The 10 Be and 9 Be concentrations spanned wide ranges. Concentrations in procedure A samples were higher than those in procedure B samples. The 10 Be/ 9 Be ratios fell within a narrow range, and values from CRREL (about 8.5 × 10 −9 ) and Barrow (about 7 × 10 −9 ) were of the same order of magnitude. Further studies...
全文获取路径: Elsevier  (合作)

  • beryllium 
  • Alaska 阿拉斯加
  • wedge 
  • Ground 地面
  • water