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http://dx.doi.org/10.5467/JKESS.2017.38.7.552

Geomorphology and Geology of Mt. Deok on Bigeum Island, Shinan, Korea  

Chung, Chull-Hwan (Faculty of Earth Systems and Environmental Sciences, Chonnam National University)
Kim, Cheong-Bin (Department of Physics Education, Sunchon National University)
Publication Information
Journal of the Korean earth science society / v.38, no.7, 2017 , pp. 552-560 More about this Journal
Abstract
This study investigates the development process of Mt. Deok on Bigeum Island, Shinan, on the basis of geomorphological and geological analyses. K-Ar dating was carried out on two samples of the acidic lapilli tuff developed in the study area, and the obtained K-Ar ages are $70.4{\pm}1.4$ and $76.9{\pm}1.5Ma$, which correspond to the Late Cretaceous (Campanian). Mt. Deok is surrounded by rock cliff, and various weathering microtopographic features, such as tafoni, tor and gnamma, are developed. Tafoni with diverse morphologic types is the most dominant feature, indicative of intense salt weathering. Geological characteristics such as porous tuff and joint have played an important role in the development of tafoni and rock cliff. Geomorphology and geology of Mt. Deok reflect paleoenvironmental change and interaction between human and nature in the coastal area.
Keywords
Mt. Deok on Bigeum Island; tafoni; lapilli tuff; salt weathering;
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Times Cited By KSCI : 4  (Citation Analysis)
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