PROFILE #15
A1--0 to 8 inches; very dark gray (10YR 3/1) clay, black (10YR 2/1) moist; moderate fine
subangular blocky and moderate medium granular structure; extremely hard, very firm, very
sticky and plastic; many fine roots; common very fine pores; common medium wormcasts; few
fragments of snail shells; many very fine shiny faces of peds; few fine black concretions; few
fine calcium carbonate concretions; strong effervescence; moderately alkaline; clear wavy
boundary. (6 to 12 inches thick)
A2--8 to 24 inches; very dark gray (10YR 3/1) clay, black (10YR 2/1) moist; moderate fine and
very fine angular blocky natural fragments that form wedge like shapes peds; extremely hard,
very firm, very sticky and very plastic; common fine roots; common very fine pores; shiny
surfaces on many fine and very fine natural soil fragments; few fine black concretions; few fine
calcium carbonate concretions; strong effervescence; moderately alkaline; gradual wavy
boundary. (0 to 20 inches thick)
Bss--24 to 38 inches; dark gray (10YR 4/1) clay, very dark gray (10YR 3/1) moist; strong coarse
angular blocky natural fragments that form wedge shaped peds: extremely hard, very firm, very
sticky and very plastic; few fine roots; common very fine pores; many intersecting slickensides
shiny surfaces on many fine, medium, and coarse ped faces; few fine black concretions; few fine
calcium carbonate concretions; strong effervescence; moderately alkaline; clear wavy boundary.
(0 to 20 inches thick)
Bssk1--38 to 80 inches; grayish brown (10YR 5/2) clay, dark grayish brown (10YR 4/2) moist;
few medium distinct olive brown (2.5YR 4/4) and many coarse faint gray (10YR 5/1) mottles;
strong coarse angular blocky natural fragments that form wedge shaped peds; extremely hard,
very firm, very sticky and very plastic; few fine roots; few very fine pores; many intersecting
slickensides shiny surfaces on many fine, medium, and coarse ped faces; few fine dark gray
vertical streaks; few fine black concretions and soft brown masses; few fine and medium calcium
carbonate concretions and soft masses; violent effervescence; moderately alkaline; gradual wavy
boundary. (10 to 50 inches thick)
Bssk2--80 to 104 inches; coarsely and distinctly mottled light olive brown (2.5Y 5/4) and gray
(10YR 6/1) clay; common fine faint olive brown mottles; weak medium and coarse angular
blocky natural fragments that form wedge shaped peds; very firm, very sticky and very plastic;
few very fine roots and pores; many prominent slickensides; few fine soft brown masses; few
medium soft masses of calcium carbonate; violent effervescence; moderately alkaline.