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Bt 10-30 Brown (10YR 4/3); very gravelly sandy loam; weak fine
to medium subangular blocky structure and single
grain structure; soft, very friable, slightly sticky and
slightly plastic; patchy thin argillan between sand grain;
many fine interstitial pores; many very fine to fine and
few coarse roots; many rock fragment (quartz grain)
diameter 0.5-3 cm and few fine mica flake; slightly acid
(field pH 6.5); clear, smooth boundary to BCr.

BCr 30-70/90 Mixed yellowish brown (10YR 5/4) 70% and pale brown
(10YR 6/3) 30%; extremely gravelly sandy loam; weak
fine to medium subangular blocky structure and single
grain structure; soft, very friable, slightly sticky and
slightly plastic; many fine interstitial pores; many
coarse and very coarse weathering rock from gneissic
granite and few fine mica flake; slightly acid (field pH
6.5); clear, wavy boundary to Cr1.

Cr1 70/90-120 Pale brown (10YR 6/3); weathering rock from gneissic
granite; slightly acid (field pH 6.5); clear, smooth
boundary to Cr2.

Cr2 120-200 Pale brown (10YR 6/3); weathering rock from gneissic
granite; slightly acid (field pH 6.5).