Category rock khok kruat A gray siltstone and Red fade Stone, clay and sandstone conglomerate with a layer of lokrit with a crash into weathered sediment, dirt, sand, sand or clay dough.
Rocks, gravel hump Gray siltstone and sandstone rocks with red clay and a layer of conglomerate Cal Crete sediment eroding the soil is silty or sandy soils.
Rock category Khok kruat, siltstone gray to red Zhang sandstone rocks and conglomerate with clay layer calcrete with sludge decay with a sandy powder. Or sandy soil.