Is it possible to have a clayey-skeletal Vertisol? We are trying to use this classification for a residual soil weathered from marble, but one of our databases is producing an error message saying, "Particle size must be FINE, VERY-FINE, CLAYEY, or CLAYEY OVER * for VERTISOLS order"
Below is the soil that seems to fit this classification. Attached is a picture.
Horizon.....Depth (cm)............Texture.............Clay%........Rock%
A.................. 0-10.....................CL....................38.9.............8
Bt1................10-24....................C.................... 40.4.............7
Bt2................24-49.................CB-C..................46.1............16
Btss..............49-82.................STX-C.................49.5............75
R................82-200.................Bedrock......................................
There were cracks and slickensides. Control section: 24-74 cm.
