Effect of film water on pore surfaces in weathering of a rhyolite

DOI
  • Yokoyama Tadashi
    Department of Earth and Space Science, Graduate School of Science, Osaka University

Bibliographic Information

Other Title
  • 流紋岩の風化における間隙表面の水膜の効果

Description

In the Earth's surfaces, rock pores often become unsaturated and the thickness of water on pore surfaces under unsaturated condition becomes less than that under saturated condition. Dissolution experiments were conducted using a porous rhyolite under saturated and unsaturated (water saturation 43%) conditions, and almost the same dissolution rates were obtained. Therefore, although 57% of pores were filled with air, almost all pore surfaces were wet and dissolution progressed. The estimated thickness of water film was 3-220 nm, and a film water of this thickness had an effect to progress weathering at a rate similar to that under the saturated condition.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390282680523399296
  • NII Article ID
    130005468223
  • DOI
    10.14824/jakoka.2012.0_145
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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