• Title/Summary/Keyword: surfac textur. crypturbation

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The Geomorphological Characteristics of Coastal Dune in Young Gwang, Jeonnam (전남 영광 지역의 해안사구 지형 특성)

  • PARK, Cheol-Woong
    • Journal of The Geomorphological Association of Korea
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    • v.18 no.4
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    • pp.177-191
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    • 2011
  • This paper describes a dune field on shoreline of Young Gwang. To clarify geomorphic characteristics, made an analysis of grain size of the sand sediments samples and surface texture of quartz grains, and field survey. The following results were obtained : 1) Young Gwang sand dune is taking to pieces by human impact, and dose not move ahead the process of sand dune. 2) there was a turbulence of sand sediments outcrops saying to the cryoturbation that represents cold climatic environments, 3) Constituents of sand dune are mainly fine and very fine sand(2.5~4.5Φ) consisted by quartz and feldspar. Young Gwang sand grians have some analogy with different sites in west coast 4) In surface texture, roundness is thought to have been formed sub-angular, and some V cracks represented mechanical weathering environments. Especially, the dune environment has significant cultural and archaeological values arising from the occupation of human in the past. Those areas where occupation is known provide a valuable source of past records relating to human settlement.