Table 3.

Semi-quantitative distributions of minerals (psilomelane in trace quantities detected in MGA1, unit 1c; Bt horizon) in palaeosols of the MGA1 and 2 sections, west flank of Mount Kenya

SampleKmHIISSGoMicQAMOCa-PMagH
MGA1-Ah1xxtrtrxtrXxxx
MGA1-Ah2trtrxtrTrxxtrtrtr
MGA1-Ah3trtrxtrxxtrtrtr
MGA1-BtxxtrXxtrxx
MGA1-2Bw1xtrxxx
MGA1-2Coxtrxxtrtrxxtr
MGA2-Ahxtrxxxx
MGA2-Bw1trxtrxxtrtr
MGA2-2Bt2trxxtrxtrtr
MGA2-1b Bt1xxxx
MGA2-1b Bt2xtrxxxx
  • Clay minerals: kaolinite (K), metahalloysite (mH), illite (I), smectite (S) and illite-smectite (IS). Primary minerals include Quartz (Q), Albite (A), Ca-plagioclase (Ca-P), Microcline (Mic), Goethite (Go), Muscovite (M), Orthoclase (O), Maghemite (Mag) and Hematite (H). Semi-quantitative estimate of amounts of individual mineral species is based on relative peak height: nil (–), trace (tr), small amount (x) and moderate amount (xx).