• Title/Summary/Keyword: cosmogenic nuclides(CNs)

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Cosmogenic Nuclides Dating of the Earth Surface: Focusing on Korean Cases (우주선유발 동위원소를 이용한 지표면의 연대측정: 국내 사례를 중심으로)

  • Seong, Yeong Bae;Yu, Byung Yong
    • The Journal of the Petrological Society of Korea
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    • v.23 no.3
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    • pp.261-272
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    • 2014
  • Over the last three decades, advances in AMS (Accelerator Mass Spectrometry) and Noble Gas Mass Spectrometer make various application of terrestrial cosmogenic nuclides (CNs) to wide range of earth surface sciences possible. Dating techniques can be divided into three sub-approaches: simple surface exposure dating, depth-profile dating, and burial dating, depending on the condition of targeted surfaces. In terms of Korean landscape view, CNs dating can be applied to fluvial and marine terrace, alluvial fan, tectonic landform (fault scarp and faulted surfaces), debris landforms such as rock fall, talus, block field and stream, lacustrine and marine wave-cut platform, cave deposits, Pliocene basin fill and archaeological sites. In addition, in terms of lithology, the previous limit to quartz-rich rocks such as granite and gneiss can be expanded to volcanic and carbonate rocks with the help of recent advances in CNs analysis in those rocks.