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ͪشԹ  :  ѧԵ  Rangsit (Rs)
 
 
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Apg
0-15
Very dark gray to very dark grayish brown (10YR3/1-2) clay; common fine distinct yellowish brown (10YR5/8) mottles mainly along root channels; weak medium and coarse breaking to medium and fine subangular blocky structure; firm, sticky, plastic; many very fine roots; very strongly acid (field pH 5.0); gradual, slightly wavy boundary.
Bssg1
15-30/35
Black (10YR2/1) clay; many fine, medium distinct yellowish brown (10YR5/8) and few fine prominent red (2.5YR4/8) mottles; weak to moderate breaking to fine angular blocky structure; firm, sticky, plastic; few slickensides; few very fine roots; very strongly acid (field pH 4.5); gradual, wavy boundary.
Bssg2
30/35-49
Mixed very dark grayish brown (10YR3/2) and grayish brown (10YR5/2) clay; many medium and coarse prominent red (10R4/8, 7.5R3/8), fine and medium distinct yellowish brown (10YR5/8) mottles; moderate medium and fine angular blocky structure, firm, sticky, plastic; few very fine roots; common pressure faces and slickensides; very strongly acid (field pH 4.5); gradual, smooth boundary.
Bssjg1
49-59/65
Brown (7.5YR5/2) clay; few small inclusion of dark A materials; many medium and coarse prominent red (2.5YR4/8) and dark red (7.5R3/8) and many fine pale yellow (2.5YR7/4) (jarosite mottles) and few fine yellowish brown(10YR5/8) mottles; moderate medium and fine angular blocky structure; firm, sticky, plastic; few very fine roots; common pressure faces and slickensides; very strongly acid(field pH 4.5); clear, wavy boundary.
Bssjg2
59/65-110
Brown (7.5YR5/2) clay; many medium and coarse pale yellow (2.5Y8/6) (jarosite) and few fine distinct yellowish brown (10YR5/8) mottles as vertical streaks; moderate prismatic breaking to angular blocky structure; firm, sticky, plastic; few slickensides; very strongly acid (field pH 4.5).
Cjg
110-160
Brown (7.5YR5/2) half ripe clay; common medium and coarse distinct yellowish brown (10YR5/8) and few medium pale yellow (2.5Y8/6) mottles; very strongly acid (field pH 4.5).
Cg
160-190+
Dark greenish gray (5GY4/1) and dark gray (5Y4/1) half ripe clay; moderately acid (field pH 6.0).