Petronodic Subgroup helper (Aridisols) Pass when 5%+ rock fragments cemented by carbonates within 100 cm. v0.8 proxy: caco3_pct >= 15 AND coarse_fragments_pct >= 5.

Petronodic Subgroup helper (Aridisols) Pass when 5%+ rock fragments cemented by carbonates within 100 cm. v0.8 proxy: caco3_pct >= 15 AND coarse_fragments_pct >= 5.

Usage

petronodic_subgroup_usda(pedon, max_top_cm = 100)

Arguments

pedon

A PedonRecord.

max_top_cm

Numeric threshold or option (see Details).