Site 11a: Glacial Lacustrine
 
Depth (cm) Horizon Description 
6-4 Ln  Deciduous leaves, coniferous needles, Englemann Spruce cones, droppings, fungal mycelia, Arachnida. 
4-0 Fa  Moist; very dark brown (7.5YR 2.5/3 m); moderate, non-compact matted, friable, leafy; abundant, very fine roots; few Arachnida; common, random droppings; common, random fungal mycelia. 
0-26 Ae  Light gray (5YR 7/1 m); silt loam; strong, fine, subangular blocky; loose; few, fine, horizontal, inped roots; clear, irregular boundary; 12-26 cm thick. 
26-41 Bf1  Dark yellowish brown (10YR 3/4 m); silt loam; weak, fine, subangular blocky; friable; plentiful, very fine, horizontal, inped root 13-15 cm thick. 
41-56 Bf2  Yellowish red (5YR 4/6 m); silt loam; weak, fine, subangular blocky; very friable; few, fine, oblique, inped roots; clear, smooth boundary; 10-15 cm thick. 
56-75 BC  Dark yellowish brown (10YR 4/6 m); silt loam; moderate, fine, subangular blocky; friable; few, fine, horizontal, inped toots; clear, smooth boundary; 17-19 cm thick. 
75-81 discontinuous IIC  Olive brown (2.5Y 4/4 m); silty clay loam; moderate, very fine, granular; very friable; very few, fine, random, inped roots; clear, smooth boundary; 0-8 cm thick. 
81+ IC  Strong brown (7.5YR 4/6 m); loam; strong, fine, angular blocky; loose; very few, fine, random, exped roots. 
Selected physical and chemical properties - Pedon 11.
 
HORIZON Sand
%		 Clay
%		 Silt
%		 C
%		 Ti
%		 Zr
ppm		 pH
dH2O		 pH
0.01M CaCl2 
Ae  50.1  4.80  45.1  0.36  0.428  152  4.4  3.6 
Bf1  76.3  5.40  18.4  0.98  0.397  144  4.8  4.2 
Bf2  70.3  5.20  24.5  1.2  0.407  123  5.1  4.3 
BC  83.4  2.10  14.5  1.1  0.379  125  5.2  4.5 
IIC  27.4  10.4  62.2  0.54  0.493  123  5.3  4.5 
IC  91.8  0.700  7.50  1.0  0.399  143  5.6  4.7 
 
HORIZON By NH4OAc By NH4Cl 
Al
cmol(+)kg-1		 Ca
cmol(+)kg-1		 Fe
cmol(+)kg-1		 K
cmol(+)kg-1		 Mg
cmol(+)kg-1		 Mn
cmol(+)kg-1		 Na
cmol(+)kg-1 		 CEC
cmol(+)kg-1 
Ae  0.12  1.42  0.012  0.089  0.11  0.026  0.068  4.9 
Bf1  0.14  0.96  0.025  0.063  0.079  0.029  0.011  3.1 
Bf2  0.30  0.46  0.014  < 0.005  0.046  0.010  0.032  1.8 
BC  0.28  0.17  < 0.011  0.069  0.020  < 0.007  0.013  1.1 
IIC  0.39  0.32  < 0.011  0.079  0.035  < 0.007  1.9  1.1 
C  0.24  0.18  < 0.011  0.029  0.018  < 0.007  0.0090  1.1 
 
HORIZON Alp
%		 Fep
%		 Alo
%		 Feo
%		 ODOE* 
Ae  0.010  0.018  0.020  0.038  0.10 
Bf1  0.10  0.36  0.17  0.23  0.55 
Bf2  0.13  0.21  0.25  0.16  0.56 
BC  0.17  0.20  0.30  0.14  0.51 
IIC  0.089  0.079  0.18  0.076  0.14 
C  0.15  0.17  0.29  0.14  0.42 

o = (NH4)2C2O4      p = Na4P2O7      * = optical density of oxalate extract 

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