Skip to contents

Tsitelic horizon (WRB 2022 Ch 3.1)

Source: R/diagnostics-horizons-wrb-v033.R
tsitelic.Rd

From Georgian tsiteli = red. A red colour-defined horizon formed on weathered basalt or similar Fe-rich parent material in Caucasian / Mediterranean settings. Used by the Cambisols key (Ch 4 p 123, criterion 4) and by the Tsitelic qualifier.

Usage

tsitelic(pedon, min_thickness = 10)

Arguments

pedon

A PedonRecord.

min_thickness

Numeric threshold or option (see Details).

Details

Diagnostic criteria (v0.3.5 simplification):

  • Munsell hue \<= 2.5YR (i.e. 2.5YR, 10R, 7.5R, 5R, 2.5R) AND value \<= 4 (moist) AND chroma \>= 4 (moist);

  • evidence of soil formation (cambic-style criterion 3) proxied by clay \>= 8% AND structure_grade not "single grain" / "massive";

  • thickness \>= 10 cm.