極地の雪中微量元素

• 池川 雅哉

  京都府立医科大学、分子医科学部門、ゲノム医科学教室 タケダライフサイエンスリサーチセンター

• 本多 和人

  タケダライフサイエンスリサーチセンター

• 藤井 理行

  国立極地研究所

• 木村 美恵子

  タケダライフサイエンスリサーチセンター

書誌事項

タイトル別名

• Trace Elements in Polar Snow
• キョクチ ノ セッチュウ ビリョウ ゲンソ

抄録

A total of 37 elements including Na, Mg, Al, K, Ca, Fe, Ba, Cd, Fe, Cd, Cr, Cu, Ga, Li, Mn, Pb, Se, Sr, V, Zn, As, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Th in Antarctic snow were analyzed by ICP-MS in a class 1000 clean room. Chromatographic analysis for Cl^-, SO₄^2- and NO₃^- were also conducted. Antarctic snow samples were collected at Asuka Station(71°32'S, 24°08'E, 930 m a.s.l. )over a period from July to December 1991. Concentration of the most of the elements in Antarctic snow is 1-3 orders of magnitude smaller than that of Arctic snow collected in 1992. Pronounced peak concentration in most of the elements together with non sea salt sulfate was observed in late September to early October. Enrichment factor analysis suggest for Na, Mg, Ca, K and Sr of marine origine and Al, Fe, Mn, Rb, Cr, Ni, Ga, V and all the rare earth elements of crustal origine. Volcanic eruption of Mt.Pinatubo(June, 1991)and / or Mt. Hudson(August, 1991)could be the reason for the precipitations of Pb, Cd, Cu, Zn and Se together with acidic components in the drifting snow. Surface snow samples along a 2200 km route including one at Dome Fuji(77°32'S, 24°08'E; 3810 m a.s.l. )have been collected in 1991- 1993. Spacial distribution of trace elements of surface snow in Antarctica may reflect polar stratospheric precipitation or long range transport from the southern hemisphere. Rare earth element(REE)pattern in surface snow shows a distinctive pattern in the Antarctic inner most highland area. This study will help researchers to gain further investigations of deep ice cores, which will have provided a wealth of information on global climate change and atmospheric composition.

収録刊行物

• Biomedical Research on Trace Elements

  Biomedical Research on Trace Elements 18 (4), 311-318, 2007

  日本微量元素学会

キーワード

• ICP-MS
• Antarctic
• Arctic
• Trace Elements in snow
• enrichment factor
• rare earth element

詳細情報

• CRID: 1390001204367478528
• NII論文ID: 10019586948
• NII論文ID: 10021097462
• NII書誌ID: AN10423256
• DOI: 10.11299/brte.18.311
• ISSN: 18801404
• ISSN: 0916717X
• NDL書誌ID: 9412329
• Web Site: http://id.ndl.go.jp/bib/9412329
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9412329
• Web Site: https://search.jamas.or.jp/link/ui/2007331727
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可