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ͪشԹ  :  ҧ  Hang Dong (Hd)
 
 
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Apg1
0-7
Gray (10YR6/1) dry, gray (10YR5/2) moist, silty clay; common fine distinct yellow (10YR7/8) mottles along root channels; moderate fine subangular blocky structure; firm, sticky, plastic; many very fine and fine roots; medium acid (field pH 6.0); abrupt, wavy boundary.
Apg2
7-18/24
Gray (10YR6/1) dry, gray (10YR5/1) moist, silty clay loam; common fine distinct yellowish brown (10YR5/6) mottles along root channels; massive to weak coarse subangular blocky structure; extremely firm, sticky, plastic; few very fine roots; medium acid (field pH 6.0); abrupt, wavy boundary.
Btg1
18/24-20/29
Gray (10YR5/1-6/1) silty clay with angular quartz sand grains and few fine angular quartz pebbles; common fine distinct yellow (10YR7/6) mottles; weak medium subangular blocky structure; firm, sticky, slightly plastic; very fine roots; slightly acid (field pH 6.5) abrupt, wavy boundary.
Btg2
20/29-74
Gray (10YR6/1) clay; common fine and medium distinct yellow (10YR8/6) mottles inpeds and common medium distinct light yellowish brown (2.5Y6/4) mottles as coatings along root channels especially in the upper part of the horizon; moderate coarse prismatic breaking to moderate coarse and medium subangular blocky structure; firm, sticky, plastic; continuous thick cutans, mainly on ped faces and in pores; few very fine roots; neutral (field pH 7.0); gradual, smooth boundary.
Btg3
74-120+
Gray (10YR5-6/1) clay; many fine and medium distinct yellow (2.5Y7/6) and yellowish brown (10YR5/6) mottles inpeds; moderate coarse subangular blocky structure; firm, sticky, plastic; broken thick cutans, mainly on ped faces and in pores; few strongly developed large and slightly inclined slickensides; few small, hard, spherical iron-manganese nodules of concentric structure; very few very fine roots; neutral (field pH 7.0).