Label

Description

a

Dark yellow-brown gravelly clay, hard, exhibiting low plasticity, caliche nodules often present, occasional limestone fragments.

b

Yellow - very pale brown silty gravelly clay, low plasticity, gravel is prevalent, numerous small salient nodules, limestone fragments common.

c

Dark red-brown medium-coarse gravelly clay, gravel intermixed with brown-yellow silty clay, occasional caliche nodules and limestone fragments, clay plastic and firm.

d

Brown-yellow silty clay, low plasticity, firm, occasional caliche nodules, occasional limestone fragments.

e

Yellow powdery clay, dry, common limestone fragments.

f

Brown-yellow silty clay, soft, moderately to highly plastic.