Geosciences Journal

, Volume 1, Issue 1, pp 26–31 | Cite as

Albitization of feldspars in sandstones from the Gohan (Permian) and Donggo (Permo-Triassic) formations, Gohan area, Kangwondo, Korea

  • Kang-Min Yu
  • Sam Boggs
  • Abbas Seyedolali
  • Jaehong Ko


Sandstones in the Gohan and Donggo formations in the Gohan area, Korea, contain considerable amounts of feldspars. Electron probe microanalysis (EPMA), backscattered electron microscopy (BSE), cathodoluminescence (CL), and microscopic petrography show that many of these feldspars consist of albite. Most of these albites are characterized by moderately high chemical purity (Ab 97–100) and do not display cathodoluminescence. These characteristics suggest that the albite is probably authigenic, formed during burial diagenesis by alteration of plagioclase and K-feldspar. The presence of abundant albite suggests that the sediments were buried to depths corresponding to the burial temperature that probably exceeds 90°C.

Key words

albitization feldspar sandstone cathodoluminescence backscattered electron microscopy 


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Copyright information

© Springer 1997

Authors and Affiliations

  • Kang-Min Yu
    • 1
  • Sam Boggs
    • 2
  • Abbas Seyedolali
    • 2
  • Jaehong Ko
    • 3
  1. 1.Department of Earth System SciencesYonsei UniversitySeoulKorea
  2. 2.Department of Geological SciencesUniversity of OregonEugeneUSA
  3. 3.Department of Earth System SciencesYonsei UniversitySeoulKorea

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