Abstract
Sequential changes in mineralogical properties due to weathering during 350 ka were examined using sandstone gravel in fluvial terrace deposits with a known emergence time which were distributed in the Miyazaki Plain, South Kyushu. Fe is increasingly concentrated and Si and alkali elements such as K, Na are increasingly leached from the sandstone matrix with the progress of weathering. Pores of gravel increase with weathering and can be correlated to the decrease of Si, K and Na contents.
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