ѵԢͧشԹѴ


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ͪشԹ  :  ҧ͡  Bangkok (Bk)
 
 
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Apg1
0-12
Very dark gray (10YR3/1) clay; many fine prominent strong brown (7.5YR5/8) mottles mainly along root channels; weak coarse subangular blocky structure to massive; very hard; common very fine roots; moderately acid (field pH 6.0); gradual, smooth boundary.
Apg2
12-30
Black (10YR2/1) to very dark gray (10YR3/1) clay; common fine prominent strong brown (7.5YR5/8) mottles along root channels and coarse on ped faces, few coarse, medium yellowish brown (10YR5/8) mottles; weak coarse angular blocky structure; very firm; slightly acid (field pH 6.5); gradual, smooth boundary.
Bssg1
30-48
Mixed very dark gray (10YR3/1), dark gray (5Y4/1), olive gray (5Y4/2) clay; many coarse prominent yellowish brown (10YR5/8) mottles; weak coarse angular blocky structure; firm; few big slickensides; neutral (field pH 7.0); gradual, smooth boundary.
Bssg2
48-90
Gray (5Y5/1) few very dark gray (10YR3/1) inclusions, clay; many coarse and medium prominent yellowish brown (10YR5/8), strong brown (7.5YR5/8) and few coarse distinct very dark brown (10YR2/2) mottles; moderate coarse angular blocky structure; firm; common big slickensides; clay coatings in pores; possibly Mn; neutral (field pH 7.0); gradual, smooth boundary.
Bg
90-130
Gray (5Y5/1) nearly ripe clay; many fine and medium prominent yellowish brown (10YR5/8), distinct light olive brown (2.5Y5/4), few very coarse very dark brown (10YR2/2) mottles include small, slightly hard iron pipes, most of the mottles occur along root channels and few coarse prominent black mottles; moderate coarse angular blocky structure; sticky, plastic; neutral (field pH 7.0); gradual, smooth boundary.
BCg
130-140
Dark gray (5Y4/1) half ripe clay; many prominent yellowish brown (10YR4/4), distinct olive brown (2.5Y4/4), dark greenish gray (5GY4/1) mottles mainly along root channels, inside of root channel is still reduced greenish mottles increase with depth; weak coarse prismatic breaking to moderate fine angular blocky structure; sticky, plastic; moderately alkaline (field pH 8.0); gradual boundary.
Cg1
140-200
Dark gray (5Y4/1) nearly unripe clay; many medium distinct dark greenish gray (5GY4/1) mottles which become greener with depth (near 5G4/1) and few dark olive brown mottles; moderately alkaline (field pH 8.0).
Cg2
200-320
Dark greenish gray (5GY4/1), the matrix color becomes slightly greener with depth (near 5G4/1) nearly unripe clay; moderately alkaline (field pH 8.0).