(A) Concentrations of Ca and K in mottle separates; (B) Quantitative X-ray diffraction (QXRD) mineralogy of mottle separates, with total K-fieldspar plotted against total plagioclase feldspar; and (C) QXRD mineralogy of total clay plotted against total primary minerals.
(A) Concentrations of Ca and K in mottle separates; (B) quantitative X-ray diffraction (QXRD) mineralogy of mottle separates, with total K-feldspar plotted against total plagioclase feldspar; and (C) QXRD mineralogy of total clay plotted against total primary minerals. Symbol color indicates mottle color, shape indicate Terrace 2, 3, or 5. Data from the same terrace are from different soil depths.