The Estimation of the Extent of Weathering using Fractal Dimension through a Comparison with Chemical Characteristic
2012
Noh, S.K., Seoul National University, Seoul, Republic of Korea | Son, Y.H., Seoul National University, Seoul, Republic of Korea | Bong, T.H., Seoul National University, Seoul, Republic of Korea | Park, J.S., Seoul National University, Seoul, Republic of Korea
The processes of chemical and physical weathering occur simultaneously. The objective of this study was to estimate the degree weathered using fractal dimension through comparison with chemical characteristic of soil samples from Pohang (PH) and Kimpo (KP). Comparing chemical characteristics with fractal dimension, SiO₂, Na₂O, K₂O content decreased and loss of ignition increased as fractal dimension increased. And fractal dimension showed high correlation with CWI while ATI, STI CIW, PI, CIA and RR demonstrated different degrees of correlation with fractal dimension. The tendency of the changes in oxide content and chemical weathering index with increasing fractal dimension appeared to be similar with the chemical changes due to weathering. Therefore, fractal dimension could be a good indicator representing the extent of weathering and chemical changes.
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