Table 2.

Summary of minerals present in the clay fraction of soil samples and their relative abundance

SiteKaoliniteKaolinite–illiteSmectiteSmectite–chloriteIlliteVermiculiteQuartzFeldsparCalcite
KR1+ + ++
KR2+ + +
KR3+ + +
KR4+ + +
KR5+ + ++ + +++
KR6+ ++
KR7+ + ++ ++ +++ +
KR8+ + ++
KR9+ + ++
KR10+ + +++ +
KR11+ + ++ + +
LR1+ + ++ +
LR2+ + ++ +
NR1+ ++ ++ + ++ + ++ +
NR2+ + +
NR3+ + ++
NR4+ + ++
NR5+ + ++ +

Mineral abundance key (qualitative): + + +, abundant; + +, minor; +, trace.