대청도 모래울 사구의 지형 특성과 OSL 연대
Geomorphological Characteristics and OSL Ages of the Moraeul dune in Daechoengdo Island, South Korea
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Coastal dunes play an important role in coastal defense. The Moraeul dune in Daecheongdo Island is representative in this regard. However, there is little knowledge, concerning the morphology, grain size, and formation timing of the dune. This study investigated the geomorphological characteristics of the Moraeul dune using topographic surveys, grain size analyses, and OSL dating. The dune was classified as ‘single accreted foredune’, which was developed under dense vegetation cover and efficient sand trapping. The dune consisted of fine to medium sand with 1.6Φ of mean grain size, and was covered with pine trees (> 100 years old). The samples from the upper part of the dune yielded quartz OSL ages ranging 0.5 ~ 0.7 ka. Therefore, it is likely that the dune developed at least before the Little Ice Age and became what it is today about one century ago.
Abstract
Coastal dunes play an important role in coastal defense. The Moraeul dune in Daecheongdo Island is representative in this regard. However, there is little knowledge, concerning the morphology, grain size, and formation timing of the dune. This study investigated the geomorphological characteristics of the Moraeul dune using topographic surveys, grain size analyses, and OSL dating. The dune was classified as ‘single accreted foredune’, which was developed under dense vegetation cover and efficient sand trapping. The dune consisted of fine to medium sand with 1.6Φ of mean grain size, and was covered with pine trees (> 100 years old). The samples from the upper part of the dune yielded quartz OSL ages ranging 0.5 ~ 0.7 ka. Therefore, it is likely that the dune developed at least before the Little Ice Age and became what it is today about one century ago.
참고문헌 (25)
- Arens, S. M, "Patterns of sand transport on vegetated foredunes", Geomorphology, 17(4), pp.339~350 (1996)
- Blott, S. J, "GRADISTAT: a grain size distribution and statistics package for the analysis of unconsolidated sediments", Earth Surface Processes and Landforms, 26, pp.1237~1248 (2001)
- Choi, J. H, "Luminescence dating of well-sorted marine terrace sediments on the southeastern coast of Korea", Quaternary Science Reviews, 22, pp.407~421 (2003)
- Choi, K. H, "Evolution of coastal dune system and sea level change during the Holocene in Korea", Doctor, pp.2009
- 최광희, "입자의 형태적 특성을 활용한 퇴적물 입도분석", 한국지형학회지, 27(2), pp.19~28 (2020), 한국지형학회[DOI]
- 최광희, "우리나라 해안사구의 분포와 보전현황", 한국지형학회지, 22(3), pp.123~137 (2015), 한국지형학회[DOI]
- 최광희, "대청도 옥죽동 사구의 형성과 최근의 변화", 한국지형학회지, 24(4), pp.91~101 (2017), 한국지형학회
- 최광희, "충남 다사리 해안사구에 기록된 폭풍퇴적층", 지질학회지, 50(4), pp.539~549 (2014), 대한지질학회[DOI]
- Choi, K. H, "Reconstruction of Holocene coastal progradation on the east coast of Korea based on OSL dating and GPR surveys of beach-foredune ridges", The Holocene, 24, pp.24~34 (2014)
- 최광희, "원산도 해안사구 퇴적층에 대한 OSL 연대측정과 그 의미", 한국지형학회지, 15(4), pp.39~51 (2008), 한국지형학회
- 최광희, "지난 10년간 대청도 옥죽동 사구의 지형 변화", 한국지형학회지, 26(3), pp.31~42 (2019), 한국지형학회[DOI]
- Folk, R. L, "Brazos River bar:a study in the significance of grain size parameters", Journal of Sedimentary Petrology, 27, pp.3~26 (1957)
- 정필모, "보령 소황리 전사구의 계절별 지형변화 특성과 그 의의", 한국지형학회지, 19(4), pp.109~122 (2012), 한국지형학회
- 김종연, "대청도 지두리 해안의 모래 퇴적층의 특성과 매몰연대에 대한 연구", 한국지형학회지, 25(1), pp.1~17 (2018), 한국지형학회[DOI]
- Munyikwa, K, "Coastal dune luminescence chronologies indicating a Mid-Holocene Highstand along the East coast of the Yellow Sea", Journal of Coastal Research, 24(2B), pp.92~103 (2008)
- Murray, A. S, "Luminescence dating of quartz using an improved singlealiquot regenerative-dose protocol", Radiation Measurements, 32, pp.57~73 (2000)
- Olley, J. M, "The effects of disequilibria in the uranium and thorium decay chains on burial dose rates in fluvial sediments", Quaternary Science Reviews (Quaternary Geochronology), 15, pp.751~760 (1996)
- 박천영, "대청도 옥죽동 해안사구의 지형특징 및 발달과정에 관한 고찰", 한국지형학회지, 16(1), pp.101~111 (2009), 한국지형학회
- Pye, K, "Aeolian sand and sand dunes", pp.396~ (2008), Springer
- Qian, W, ", Little Ice Age climate near Beijing, China, inferred from historical and stalagmite records", Quaternary Research, 57(1), pp.109~119 (2002)
- 신원정, "대청도 옥죽동·대진동 사구의 물리·화학적 특성 및 퇴적시기 고찰", 한국지형학회지, 25(2), pp.63~80 (2018), 한국지형학회[DOI]
- van Dijk, P. M, "Aeolian processes across transverse dunes. II: modelling the sediment transport and profile development", Earth Surface Processes and Landforms, 24(4), pp.319~333 (1999)
- Walton, W. H, "Feret’s statistical diameter as a measure of particle size", Nature, 162(4113), pp.329~330 (1948)
- Woodroffe, C. D, "Coasts: form, process and evolution" (2002), Cambridge University Press