Clay minerals from tidal flat sediments at Youngjong Island, Korea, as a potential indicator of sea-level change

J. W. Moon, Y. Song, H. S. Moon, G. H. Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Clay minerals from the tidal flat sediments along the coast of Youngjong Island, west of mainland Korea, were studied to ascertain their potential as an indicator of sea-level fluctuation. Semi-quantitative analysis of their clay-size fractions by XRD shows that the vertical distribution of clay minerals can be separated into four clay mineral assemblage units. Based on the relative contents of chlorite, four sedimentary units are distinguishable, and the abundance of chlorite is inversely related to that of smectite. The kaolinite content is constant, and so it is clear that chlorite originating from the Han River was transformed to smectite by pedogenesis during regression periods. Therefore, the relative contents of clay minerals from the unconsolidated materials in the tidal flat of Youngjong Island can be used as indicators of transgression and regression in accordance with the sea-level fluctuation.

Original languageEnglish
Pages (from-to)841-855
Number of pages15
JournalClay Minerals
Volume35
Issue number5
DOIs
Publication statusPublished - 2000 Dec 1

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Sea level
tidal flat
Clay minerals
sea level change
clay mineral
Sediments
chlorite
smectite
sediment
sea level
Kaolin
pedogenesis
transgression
quantitative analysis
kaolinite
Coastal zones
vertical distribution
Rivers
X-ray diffraction
clay

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology

Cite this

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Clay minerals from tidal flat sediments at Youngjong Island, Korea, as a potential indicator of sea-level change. / Moon, J. W.; Song, Y.; Moon, H. S.; Lee, G. H.

In: Clay Minerals, Vol. 35, No. 5, 01.12.2000, p. 841-855.

Research output: Contribution to journalArticle

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