Profile Number:  70    Series: UNNAMED                       

Location: NE1/4,SE1/4,SEC.14(15S,5E)IN CUT.UNIT L521, H.J. ANDREWS E.F.

Classification: FLUVENTIC ANDIC EUTROCHREPTS, CO-LO, MIXED, FRIGID          
         Slope: 1 %
        Aspect: NE 
     Elevation: 3100 ft.
      Landform: CLOSED DEPRESSION             
      Drainage: MODERATELY  WELL DRAINED      
   Parent Mat.: ALLUVIUM AND ALLUVIUM-COLLUVIUM  FROM BASIC IGNEOUS ROCKS AND VOLCANIC ASH      
    Vegetation: UNCLASSIFIED                                                
   Description: BROWN- SOIL EF2 IN THESIS 8-73           

   (Physical and chemical data listed below profile description)

O1  0.5 - 0 in.      Twigs, dead grass, wood chips, etc. (L).

A1  0 - 7 in.       Brown (7.5YR5/2) when dry, very dark brown 
                    (7.5YR2/2) when moist loam; weak, very fine 
                    granular structure; slightly hard when dry, 
                    friable when moist, slightly sticky and 
                    slightly plastic and smeary when wet; 5% fine 
                    gravel, common pumice grains; gradual and 
                    wavy boundary.

2C1  7 - 13 in.     Very pale brown (10YR7/4) when dry, with 
                    matrix of brownish yellow (10YR6/6) and 
                    mottles of strong brown (7.5YR4/8) when moist 
                    loam; massive structure; slightly hard when 
                    dry, friable when moist, slightly sticky and 
                    slightly plastic and smeary when wet; 
                    abundant weathered pumice; abrupt and smooth 
                    boundary.

3A1B  13 - 16 in.   Brown (10YR4/3) when dry, with matrix of dark 
                    brown (7.5YR3/2) and mottles of strong brown 
                    (7.5YR5/6) and black (7.5YR2/0) when moist 
                    loam; weak, fine subangular blocky breaking 
                    to moderate, very fine to fine granular 
                    structure; friable when moist, sticky and 
                    slightly plastic when wet; trace of gravel, 
                    channels with common  pumice gravel; clear and wavy boundary.

3B2B  16 - 33 in.   Yellowish brown (10YR5/4) when dry, with 
                    matrix of dark brown (7.5YR3/2) and mottles 
                    of reddish brown (5YR4/3) and yellowish red 
                    (5YR4/6) when moist loam; moderate, coarse 
                    subangular blocky breaking to weak, very fine 
                    to fine subangular blocky structure; friable 
                    when moist, slightly sticky and slightly 
                    plastic when wet; 5% gravel, root channels with fresh pumice; diffuse and smooth boundary.

3C2  33 - 56 in.    Yellowish brown (10YR5/4) when dry, with 
                    matrix of brown (7.5YR4/4) and mottles of 
                    reddish brown (5YR4/3) and yellowish red 
                    (5YR4/6) when moist fine sandy loam; massive 
                    structure; friable when moist, sticky and 
                    slightly plastic when wet; trace of  gravel; 
                    diffuse and wavy boundary.

3C3  56 - 64+ in.   Yellowish brown (10YR5/4) when dry, with 
                    matrix of brown (7.5YR4/4) and mottles of 
                    yellowish red (5YR4/6) and black (7.5YR2/0) 
                    when moist fine sandy loam; massive 
                    structure; friable when moist, slightly 
                    sticky and nonplastic when wet; 8% gravel and 
                    cobbles.


Physical Profile Data

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Horizon  Depth  Density  Sand  Silt  Clay  Percolation  Moisture Tension (% H2O, dry wt.)
          (in)   (g/cc)  (%)    (%)  (%)     (in/hr)     1/3 atm  1 atm   5 atm   15 atm
-----------------------------------------------------------------------------------------
  A1     0 - 7     0.6   40.5  40.6  18.9                                             
  2C1    7 - 13    0.6   50.2  43.8   6.0                                             
  3A1B  13 - 16    0.8   45.0  45.6   9.4                                             
  3B2B  16 - 33    1.0   47.2  38.8  14.0                                             
  3C2   33 - 56    1.1   52.3  33.2  14.5                                             
  3C3   56 - 64+   0.9   63.6  24.2  12.2                                             
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Chemical Profile Data

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Horizon  Depth     Ph     O.M. Total N    P     CEC    K     Ca    Mg    Na    Base Sat.   
          (in)            (%)    (%)    (ppm)  --------------  meq/100g ----------------- 
-----------------------------------------------------------------------------------------
  A1     0 - 7     5.6    10.8   0.17    3.6   35.4   0.5    8.0  1.4   0.3     29
  2C1    7 - 13    6.0     5.0   0.21    5.5   29.6   0.1    2.6  0.6   0.2     12
  3A1B  13 - 16    6.0     3.0   0.16    2.7   30.0   0.7    9.4  2.6   0.2     43
  3B2B  16 - 33    6.2     1.2   0.08    2.7   30.5   0.3   17.4  6.2   0.4     80
  3C2   33 - 56    6.4     0.5   0.04    2.7   28.6   0.2   20.9  8.7   0.4   105%
  3C3   56 - 64+   6.4     0.3   0.03    2.0   30.8   0.2   21.9  9.9   0.4   105%
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