Research Article

Nature and Properties of Lateritic Soils Derived from Different Parent Materials in Taiwan

Table 4

Minerals composition in the clay fraction for the five lateritic soils being studied.

Soils locationMineralogical composition
QzaKaoMicGibHemGoeLepMagb,cMaghemb,cVerMonChlML

Tamshui++++++++nd+++++ndnd++
Pingchen++++++++++++++ndndnd++nd+++
Loupi++++++++++++++ndndnd++nd++++
Soka+++++++++++++ndndndnd+++++
Tungwei+++++++nd++++++++nd+

Qz: quartz or halloysite; Kao: kaolinite; Mic: micas; Gib: gibbsite; Hem: hematite; Goe: goethite; Lep: lepidocrocite; Mag: magnetite; Maghem: maghemite; Ver: vermiculite; Mon: montmorillonite; Chl: chlorite; ML: mixed layer.
bClay fraction without removing free iron oxides.
cMagnetite and Maghemite were concentrated by hand magnet.
++++: dominant; +++: major; ++: intermediate; +: minor; nd: not detected.