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首页> 外文期刊>Journal of Glaciology >Na2SO4 and MgSO4 salts during the Holocene period derived by high-resolution depth analysis of a Dome Fuji ice core
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Na2SO4 and MgSO4 salts during the Holocene period derived by high-resolution depth analysis of a Dome Fuji ice core

机译：Na2SO4和MgSO4盐在全茂期间通过高分辨率深度分析来源的圆顶富士冰芯

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摘要

We analyzed the profiles of ionic chemical species in three 500 mm sections of an ice core from Dome Fuji, Antarctica, dated 3.0, 8.9 and 13.3 kyr BP (before present), and compared the profiles to those in the surface snow. The 3.0 and 8.9 kyr sections are from the Holocene and the 13.3 kyr section slightly predates the Holocene. The analyses were done on 2 mm thick slices within each section. At each depth, the primary ionic species were Na+, H+, CV and SO42-. The SO42-, Na+ and Mg2+ levels varied with depth in each section over distances ranging from several millimeters to several centimeters. Also, the correlation coefficients between Na+ and SO42- and between Mg2+ and SO42~ for each depth were 0.90 or greater, in contrast to the value of 0.59 or less in the surface snow (defined here as 0-3.4 m from the surface). These results suggest that almost all Na+ and Mg2+ in the Holocene ice exists as Na2SO4 and MgSO4 salts, and the formation of these salts occurs not only in the atmosphere during transport, but also in the firn layer.
机译：我们分析了从圆顶富士，南极洲，日期为3.0,8.9和13.3 kyrby（在目前）的三个500 mm型冰芯中的离子化学物质的曲线，并将曲线与地表雪的岩石中的曲线进行比较。 3.0和8.9 Kyr部分来自全新世，13.3 Kyr截面略微预测全新世。分析在每个部分内的2mm厚切片上进行。在每个深度时，初级离子物质是Na +，H +，Cv和SO 4 2-。 SO42-，Na +和Mg2 +水平随深度而变化，每个部分在几毫米到几厘米的距离范围内。此外，Na +和SO42-和Mg2 +和SO42之间的相关系数为每个深度为0.90或更大，相反，表面雪中的0.59或更小（从这里定义为0-3.4m）。这些结果表明，全茂性冰中的几乎所有Na +和Mg2 +都存在为Na 2 SO 4和MgSO 4盐，并且这些盐的形成不仅发生在运输过程中的大气中，而且在FiRN层中发生。

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  • 来源
    《Journal of Glaciology》 |2006年第176期|共7页
  • 作者

    Yoshinori IIZUKA; Takeo HONDOH; Yoshiyuki FUJII;

  • 作者单位

    Institute of Low Temperature Science Hokkaido University Sapporo 060-0819 Japan;

    Institute of Low Temperature Science Hokkaido University Sapporo 060-0819 Japan;

    National Institute of Polar Research Kaga Itabashi-kujokyo 173-8515 Japan;

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  • 正文语种 eng
  • 中图分类 冰川;
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