Possibility for Heliotropism from Inclined Columns of Stromatolites, Socheong Island, Korea
(주)코리아스칼라
- 최초 등록일
- 2016.04.02
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- 2013.09
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서지정보
ㆍ발행기관 : 한국지구과학회
ㆍ수록지정보 : 한국지구과학회지 / 34권 / 5호
ㆍ저자명 : Kong, Dal-Yong, Lee, Seong-Joo
영어 초록
Socheong island is a unique island containing Precambrian stromatolites in South Korea. Most of Socheong stromatolites are domes and columns, occurring as 10 cm to 1 m thick stromatolite beds. Lower parts of the stromatolite beds are predominantly composed of domes, but columns increase toward the upper level of stromatolite beds. In many of the stromatolite beds, inclined columns are easily identifiable, which is generally considered as a result of heliotropism. From general lithology, sedimentary structures, inclined angles and distributional pattern, and structural deformation of sedimentary rocks of Socheong island, the inclination of Socheong stromatolites could be better interpreted as a secondary structural deformation probably after formation of stromatolite columns, rather than as a result of heliotropism. However, at this moment, we do not clearly reject heliotropism interpretation for inclined columns of Socheong stromatolites. This is because the original position of stromatolite columns could have been lost if structural deformation had affected the whole sedimentary rocks of Socheong island.
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