Research Article
Silicon and Aluminum Mobility in Soils of Jeju Island, Korea
Table 4
Mineral compositions of soil samples.
| | Horizon | Depth | Q | Pl | K-F | Mi/Ill | Px | Ov | K | Ch | Ch/Sm | Ch/Vc | Gb | Hm/Gt | Mg | | (cm) | (wt. %) |
| | Pyeongdae | | A | 0–18 | 29.3 | 12.4 | 9.0 | 9.4 | 5.0 | 8.0 | 4.0 | — | 6.7 | — | 3.2 | 7.1 | 5.9 | | AB | 18–44 | 23.2 | 17.5 | 7.8 | 7.2 | 6.8 | 10.0 | 1.2 | — | 8.4 | — | 3.5 | 3.9 | 6.6 | | Bw1 | 44–73 | 19.4 | 11.8 | 7.9 | 9.7 | 8.5 | 4.1 | 3.7 | — | 6.3 | — | 17.4 | 5.4 | 5.9 | | Bw2 | 73–100 | 20.6 | 11.1 | 6.8 | 8.8 | 8.2 | 4.2 | 3.9 | — | 6.4 | — | 18.6 | 5.3 | 6.1 | | BC | 100–140 | 22.8 | 11.5 | 6.0 | 12.0 | 6.2 | 5.5 | 1.4 | — | 6.4 | — | 17.1 | 3.2 | 7.8 |
| | Namwon | | A | 0–26 | 38.5 | 14.8 | 3.5 | 12.9 | 6.0 | 1.0 | 3.7 | 7.0 | — | — | 3.7 | 5.4 | 3.2 | | A2 | 26–47 | 32.8 | 14.8 | 6.5 | 11.4 | 4.4 | 8.0 | 1.8 | 7.6 | — | — | 4.7 | 3.4 | 4.4 | | AB | 47–72 | 39.2 | 11.9 | 7.0 | 12.9 | 2.9 | 1.0 | 2.9 | 8.7 | — | — | 5.9 | 2.3 | 2.7 | | Bw | 72–160 | 33.4 | 16.2 | 5.7 | 9.1 | 5.6 | 2.9 | 2.1 | 9.4 | — | — | 11.2 | 2.8 | 1.7 |
| | Jeju | | Ap | 0–20 | 54.7 | 8.8 | 1.6 | 8.6 | 10.7 | — | 1.7 | — | — | 6.3 | 1.3 | 4.1 | 2.3 | | AB | 20–41 | 49.1 | 9.0 | 11.5 | 5.1 | 7.5 | — | 2.5 | — | — | 9.3 | 1.5 | 2.2 | 2.3 | | Bt1 | 41–65 | 51.2 | 7.9 | 4.9 | 7.5 | 6.8 | — | 2.6 | — | — | 12.3 | 2.2 | 3.3 | 1.4 | | Bt2 | 65–92 | 48.4 | 5.2 | 2.4 | 10.3 | 9.7 | — | 3.9 | — | — | 11.6 | 3.1 | 3.5 | 2.1 | | Bt3 | 92–150 | 48.3 | 5.4 | 7.0 | 11.1 | 5.2 | — | 3.8 | — | — | 12.8 | 3.2 | 2.4 | 1.0 |
| | Gangjeong | | Ap | 0–24 | 53.6 | 10.5 | — | 11.6 | 7.2 | — | 4.0 | — | — | 6.3 | 2.6 | 3.4 | 0.9 | | BAt | 24–38 | 45.5 | 16.6 | 7.0 | 7.4 | 8.9 | 0.4 | 3.1 | — | — | 8.2 | 1.9 | 1.0 | — | | Bt1 | 38–53 | 45.8 | 15.6 | 4.5 | 8.8 | 7.3 | 1.5 | 3.1 | — | — | 8.1 | 1.8 | 3.5 | — | | Bt2 | 53–85 | 51.7 | 10.8 | 4.5 | 9.3 | 5.5 | — | 4.7 | — | — | 9.9 | 1.0 | 2.5 | — | | Bt3 | 85–135 | 45.6 | 15.1 | 7.7 | 10.8 | 6.0 | — | 3.5 | — | — | 6.6 | 1.4 | 3.1 | — |
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Q: quartz; Pl: plagioclase; K-F: K-feldspars; Mi/Ill: mica/illite; Hb: hornblende; Px: pyroxene; Ov: olivine; K: kaolinite; Ch/Sm: chlorite/smectite; Gb: gibbsite; Hm: hematite; Gt: goethite; Mg: magnetite.
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