IDENTIFIERS
Current Taxon Name (Soil Name):
Pengra
OSD
Series Extent
User Site ID:
S1996OR003003
User Pedon ID:
S1996OR003003
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
96P0349
NCSS Pedon Lab Data NASIS Record ID -
68427
Print Date:
11/24/2024
LOCATION
Location In Web Soil Survey
AOI is roughly a square mile and pedon is marked in the center.
Location in SoilWeb
Location in Google Maps
Std. Latitude:
44.5768051
Std. Longitude:
-123.3052750
Datum:
WGS84
State:
Oregon
County:
OR003—Benton
Non-MLRA Soil Survey Area:
OR003—Benton County, Oregon
7.5 Minute USGS Quad:
44123-E3—Corvallis, Oregon
PEDON
Describers Name:
Kathy Verble
Current Taxonomic Class:
Very-fine, smectitic, mesic Vertic Epiaqualfs
Current Taxon Kind:
taxadjunct
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
3
Correlated Information:
Soil Name -
Pengra
PSC -
42 to 92 cm.
Classificaton Date -
2/22/2008
Moisture Class -
xeric
Sampled As Information:
Soil Name -
SND
Taxonomic Class -
Fine, smectitic, mesic Vertic Haploxeralf
Classificaton Date -
8/28/1996
Moisture Class -
xeric
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Hill Slope Profile:
footslope
Slope Shape Across:
concave
Slope Shape Down:
linear
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
8/28/1996 (actual site observation date)
Surface Cover Properties:
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Pedon Diagnostic Features
Feature Kind
Feature Depth L-H
Feature Thickness L-RV-H
cm
ochric epipedon
cambic horizon
argillic horizon
0—16
16—42
42—153
—-
—-
—-
Setting and Climate
Slope
Slope Length USLE
Upslope Length
Elev.
Corr. Elev
Aspect
MAP
REAP
FFD
MAAT
MSAT
MWAT
MAST
MSST
MWST
MFFP
PE Index
Climate Station ID
Climate Station Name
Climate Station Type
%
m
degrees
mm
mm
C
mm
—
—
—
96
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
A1—0 to 7 centimeters (0.0 to 2.8 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; mucky* silt loam; moderate medium massive; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots; fragments; clear smooth boundary. Lab sample # 96P02714
A2—7 to 16 centimeters (2.8 to 6.3 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; silt loam; weak coarse subangular blocky parts to moderate fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 21.0 very fine roots; fine yellowish red (5YR 4/6) masses of oxidized iron and 1 percent fine magnetic shot and 21 percent fine strong brown (7.5YR 4/6) masses of oxidized iron; yellowish red (5YR 5/6) and strong brown (7.5YR 5/6); fragments; clear smooth boundary. Lab sample # 96P02715
B/E—16 to 27 centimeters (6.3 to 10.6 inches); light brownish gray (10YR 6/2) and strong brown (7.5YR 5/6) and yellowish brown (10YR 5/4), 30 percent dark grayish brown (10YR 4/2) and 50 percent dark yellowish brown (10YR 4/6) and strong brown (7.5YR 4/6) and yellowish brown (10YR 5/6) and 20 percent dark yellowish brown (10YR 4/4), moist; silt loam; moderate medium subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; 3.0 very fine roots and 0.5 fine roots; 0.5 fine tubular pores; 30 percent prominent black (N 2/0) manganese or iron-manganese stains on faces of peds; fine iron-manganese concretions; fragments; clear smooth boundary. Lab sample # 96P02716. Few distinct oxidized rhizospheres. Fe-Mn concretions <1.0mm
E/B—27 to 42 centimeters (10.6 to 16.5 inches); light gray (10YR 7/2) and reddish yellow (7.5YR 6/6), 50 percent grayish brown (10YR 5/2) and 35 percent yellowish brown (10YR 5/6) and strong brown (7.5YR 5/6) and brownish yellow (10YR 6/6), moist; silty clay loam; moderate coarse subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 3.0 very fine roots; 0.5 fine tubular pores; fine iron-manganese concretions and 15 percent fine strong brown (7.5YR 4/6) masses of oxidized iron; strong brown (7.5YR 5/6); fragments; abrupt wavy boundary. Lab sample # 96P02717. Fe-Mn concretions <1.0mm
2Bt—42 to 91 centimeters (16.5 to 35.8 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; silty clay; massive; very hard, firm, moderately sticky, moderately plastic; 3.0 very fine roots; 10 percent distinct clay films in root channels and/or pores; fine yellowish brown (10YR 5/8) masses of oxidized iron and fine iron concretions; brownish yellow (10YR 6/8); fragments; gradual smooth boundary. Lab sample # 96P02718. Few distinct slickensides starting at 65 cm
3Bsst—91 to 120 centimeters (35.8 to 47.2 inches); light brownish gray (2.5Y 6/2) and light yellowish brown (2.5Y 6/3), dark grayish brown (2.5Y 4/2) and light olive brown (2.5Y 5/3), moist; silty clay; massive; very hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots; 10 percent faint clay films in root channels and/or pores; 1 percent fine black (N 2/0) iron-manganese masses and 3 percent fine yellowish brown (10YR 5/6) masses of oxidized iron; yellowish brown (10YR 5/6); fragments; gradual smooth boundary. Lab sample # 96P02719. Many distinct slickensides
3Bssty1—120 to 135 centimeters (47.2 to 53.1 inches); light yellowish brown (2.5Y 6/4) and light yellowish brown (2.5Y 6/3), light olive brown (2.5Y 5/4) and light olive brown (2.5Y 5/3), moist; silty clay; massive; very hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots; 0.5 very fine tubular pores; 1 percent faint clay films in root channels and/or pores and 10 percent distinct clay films on faces of peds; 1 percent fine black (N 2/0) iron-manganese masses and 3 percent fine yellowish brown (10YR 5/6) masses of oxidized iron; yellowish brown (10YR 5/6) and 3 percent fine ; 1 percent by volume 20-48-75 millimeter sandstone, unspecified fragments; gradual smooth boundary. Lab sample # 96P02720. Common fine black manganese nodules. Many distinct slickensides. Few medium distinct and few fine distinct clear gypsum crystals and few fine and few medium prominent white gypsum crystal clusters.
3Bssty2—135 to 153 centimeters (53.1 to 60.2 inches); light yellowish brown (2.5Y 6/4), light olive brown (2.5Y 5/4), moist; silty clay; weak coarse subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots; 10 percent prominent black (N 2/0) manganese or iron-manganese stains on faces of peds and 10 percent distinct black (N 2/0) coats on sand and gravel and 10 percent prominent clay films in root channels and/or pores and 10 percent distinct clay films on faces of peds; 5 percent by volume 20-48-75 millimeter sandstone, unspecified fragments; gradual smooth boundary. Lab sample # 96P02721. Few fine manganese nodules. Many distinct slickensides. Few fine prominent white gypsum crystal clusters.
4Crt—153 to 175 centimeters (60.2 to 68.9 inches); pale yellow (2.5Y 7/3) and brownish yellow (10YR 6/8), light yellowish brown (2.5Y 6/3) and yellowish brown (10YR 5/8), moist; weathered bedrock; 10 percent distinct clay films in root channels and/or pores and 10 percent distinct clay films and 30 percent prominent black (N 2/0) manganese or iron-manganese stains; fragments. Lab sample # 96P02722. Bedrock is sandstone with uncommon prominent black (N2.5/) manganese stains on fracture surfaces.