USDA - NATURAL RESOURCES CONSERVATION SERVICE PEDON DESCRIPTION

Print Date: 12/17/2002
Description Date: 12/04/1995
Describer: JIM TURENNE

Site ID: MA023-1995-005-S
Site Note: Backhoe Pit for Workshop, site had extreme wetness during description.
Pedon ID: MA023-1995-005-P
Pedon Note: Pedon originally described as a Rainbow, now area is mapped Moshup – coastal plain thrusted till.
Lab Source ID: Lab Pedon #: 2333501 2330902
Soil Name as Described/Sampled: RAINBOW MOSHUP
Soil Name as Correlated: Moshup
Classification:
Pedon Type: within range of map unit
Pedon Purpose: full pedon description
Taxon Kind: series
Associated Soils: BROAD BROOK, CANTON, GLOUCESTER, SCITUATE, WOODBRIDGE

Location Information:
Country: USA
State: Massachusetts
County: Plymouth County
MLRA: 144A -- New England and Eastern New York Upland, Southern Part
Soil Survey Area: 023 Plymouth County
Map Unit: 309B
Quad Name: Duxbury
Location Description: TOWN OF MARSHFIELD - TELEGRAPH HILL, 2000' SOUTH OF USCG RADIO STATION, 1500' N OF SUMMIT OF TELEGRAPH HILL & 1200' W OF S RIVER STREET.

Legal Description:
Latitude: 42 degrees 7 minutes 8.00 seconds north
Longitude: 70 degrees 41 minutes 46.00 seconds west
Datum: NAD 83
UTM Zone:19
UTM Easting: 359817 meters
UTM Northing: 4664372 meters

Physiographic Division: Apalachian highlands:
Physiographic Province: New England
Physiographic Section: Seaboard lowland
State Physiographic Area: South Coastal Watershed
Local Physiographic Area: Marshfield Hills, Telegraph Hill.
Geomorphic Setting: on shoulder of side slope of drumlin, on shoulder of side slope of upland
Upslope Shape: convex Cross Slope Shape: convex
Primary Earth Cover: Tree
Secondary Earth Cover:
Plant Association Name:
Existing Vegetation: Yellow birch

Parent Material: Eolian silts over dense till – thrusted coastal plain sediments.
Bedrock Kind:
Bedrock Depth:
Bedrock Hardness:

Bedrock Fracture Interval:
Surface Fragments: 1.0 percent
Particle Size Control Section:
Diagnostic Features:? to ? in.

Slope: 9%
Elevation: 135 feet
Aspect: 360
Drainage: MWD

PROFILE DESCRIPTION

Oi--10 to 5 centimeters (3.9 to 2.0 inches); peat; clear wavy boundary.

Oe--5 to 3 centimeters (2.0 to 1.2 inches); very dark gray (5YR 3/1) mucky peat; abrupt wavy boundary.

Oa--3 to 0 centimeters (1.2 to 0.0 inches); muck; abrupt wavy boundary.

A--0 to 3 centimeters (0.0 to 1.2 inches); dark brown (7.5YR 3/2) silt loam; massive; very friable, nonsticky, nonplastic; common coarse roots and common very fine to medium roots; very strongly acid, pH 5.0, Chlorophenol red; abrupt smooth boundary.

Ap--3 to 15 centimeters (1.2 to 5.9 inches); very dark grayish brown (10YR 3/2) silt loam; weak fine and medium granular structure; very friable, nonsticky, nonplastic; common coarse roots and common very fine to medium roots; 1 percent subangular 75- to 250-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 3 percent subangular 2- to 75-millimeter mixed igneous, metamorphic, and sedimentary rock fragments; very strongly acid, pH 5.0, Chlorophenol red; abrupt smooth boundary.

Bw1--15 to 38 centimeters (5.9 to 15.0 inches); light olive brown (2.5Y 5/4) silt loam; weak medium subangular blocky structure; friable, slightly sticky, nonplastic; common fine and medium roots and common very fine roots; 2 percent subangular 75- to 250-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 5 percent subangular 2- to 75-millimeter mixed igneous, metamorphic, and sedimentary rock fragments; neutral, pH 6.6, Bromthymol blue; clear wavy boundary.

Bw2--38 to 66 centimeters (15.0 to 26.0 inches); light olive brown (2.5Y 5/4) loam; 10 percent fine and medium prominent irregular yellowish brown (10YR 5/6) and 15 percent medium and coarse distinct irregular light brownish gray (2.5Y 6/2) mottles; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; common fine and medium roots and common very fine roots; 1 percent subangular 75- to 250-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 5 percent subangular 2- to 75-millimeter mixed igneous, metamorphic, and sedimentary rock fragments; slightly acid, pH 6.3, Bromthymol blue; gradual wavy boundary.

Cd1--66 to 150 centimeters (26.0 to 59.1 inches); light olive brown (2.5Y 5/3) loam; 5 percent fine and medium faint irregular light olive brown (2.5Y 5/4) and 15 percent medium and coarse prominent irregular yellowish brown (10YR 5/8) and 25 percent coarse prominent irregular gray (5Y 6/1) mottles; massive; firm, slightly sticky, slightly plastic; common medium roots and common very fine roots; common very fine low-continuity vesicular pores; 5 percent discontinuous faint silt coats in root channels and/or pores; 1 percent subangular 250- to 600-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 2 percent subangular 75- to 250-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 8 percent subangular 2- to 75-millimeter mixed igneous, metamorphic, and sedimentary rock fragments; slightly acid, pH 6.4, Bromthymol blue; gradual wavy boundary.

Cd2--150 to 183 centimeters (59.1 to 72.0 inches); light olive gray (5Y 6/2) loam; 15 percent medium and coarse prominent irregular strong brown (7.5YR 4/6) and 25 percent coarse distinct irregular light olive brown (2.5Y 5/4) mottles; weak medium and coarse platy structure; firm, slightly sticky, slightly plastic; common very fine roots; common very fine low-continuity vesicular pores; 5 percent discontinuous faint silt coats in root channels and/or pores; 1 percent subangular 250- to 600-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 3 percent subangular 75-to 250-millimeter mixed igneous, metamorphic, and sedimentary rock fragments and 10 percentsubangular 2- to 75-millimeter mixed igneous, metamorphic, and sedimentary rock fragments; slightly acid, pH 6.2, Bromthymol blue; MOTTLES - LOW CHROMA ASSOCIATION W/FINE TEXTURES; HIGH CHROMA ASSOCIATED

W/COARSE TEXTURES.; gradual wavy boundary.