Silicon and Aluminum Mobility in Soils of Jeju Island, Korea

Table 3

Mineral compositions of basaltic bedrocks.

Soil series	Plagioclase	K-feldspars	Micas	Pyroxene	Olivine	Chlorite	Hematite	Magnetite
	(wt. %)
Pyeongdae	40.7	9.1	6.4	27.3	11.3	1.4	—	3.8
Namwon	43.7	7.6	2.7	27.5	5.0	2.1	2.8	8.5
Jeju	69.8	12.3	12.3	12.5	2.1	—	2.7	2.6
Gangjeong	28.4	10.5	3.2	26.3	20.4	3.1	—	8.0