LOCATION DOOR IN
Established Series
Rev. DPF-FWS-CLL
11/2021
DOOR SERIES
The Door series consists of very deep, well drained soils formed in loamy glacial outwash containing common to many shale fragments and low in carbonates. These soils are moderately permeability. Slopes ranges from 0 to 6 percent. Mean annual precipitation is about 35 inches and mean annual temperature is about 50 degrees F.
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Ultic Hapludalfs
TYPICAL PEDON: Door loam, on a 1 percent convex slope in a cultivated field at an elevation of 748 feet. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 8 inches; black (10YR 2/1) loam, dark gray (10YR 5/1) dry; moderate medium and fine granular structure; friable; many medium and fine roots; slightly acid; clear smooth boundary. (6 to 10 inches thick)
A1--8 to 13 inches; very dark brown (10YR 2/2) loam, dark grayish brown (10YR4/2) dry, moderate medium granular structure; friable; many medium and fine roots; slightly acid; clear wavy boundary. (2 to 10 inches thick)
A2--13 to 17 inches; very dark grayish brown (10YR 3/2) loam, grayish brown (10YR 5/2) dry; weak medium subangular blocky and moderate medium granular structure; friable; many medium and fine roots; very dark brown (10YR 2/2) organic lining in voids and fillings in worm casts; strongly acid; clear wavy boundary. (0 to 8 inches thick)
Bt1--17 to 24 inches; brown (10YR 4/3) loam; weak medium subangular blocky structure; friable; common fine roots; common faint dark brown (10YR 3/3) clay films on faces of peds and linings in some pores; common distinct very dark grayish brown (10YR 3/2) organic coatings in old roots and worm channels; few 1/8 to 1/2 pebbles and few fine shale fragments; strongly acid; clear wavy boundary.
Bt2--24 to 31 inches; brown (10YR 4/3) sandy clay loam; moderate medium subangular blocky structure; friable; common fine roots; common faint dark brown (10YR 3/3) clay films on faces of peds; few faint brown (7.5YR 5/4) clay depletions on faces of peds; few fine yellowish brown (10YR 5/6) and dark reddish brown (5YR 2.5/2) masses of iron and manganese accumulations; 5 percent fine shale fragments; 2 percent small rounded pebbles; very strongly acid; clear wavy boundary.
Bt3--31 to 39 inches; yellowish brown (10YR 5/4) sandy loam; moderate medium and coarse subangular blocky structure; friable; common faint dark yellowish brown (10YR 4/4) clay films on faces of peds and linings in some voids; few fine yellowish brown (10YR 5/6) masses of iron and manganese accumulations; 15 percent fine gravel and shale; very strongly acid; clear wavy boundary.
Bt4--39 to 51 inches; brown (10YR 5/3) parachannery sandy clay loam; weak medium and coarse subangular blocky structure; friable; common faint dark yellowish brown (7.5YR 4/4) clay films on faces of peds and coatings on shale fragments; few fine yellowish brown (10YR 5/6) and yellowish red (5YR 4/6) masses of iron and manganese accumulations; 20 percent fine shale; very strongly acid; clear wavy boundary. (Combined thickness of the Bt horizon is 20 to 50 inches)
BC1--51 to 66 inches; brown (10YR 5/3) and grayish brown (10YR 5/2) parachannery sandy clay loam; weak coarse subangular blocky structure; friable; few fine dark reddish brown (2.5YR 2.5/4) and yellowish brown (10YR 5/6) masses of iron and manganese accumulations; 20 percent shale and 5 percent coarse gravel 2 inches in diameter; very strongly acid; abrupt wavy boundary.
BC2--66 to 80 inches; strong brown (7.5YR 5/3) and dark yellowish brown (10YR 4/4) parachannery sandy clay loam; weak coarse subangular blocky structure; friable; few fine dark reddish brown (2.5YR 2.5/4) and yellowish brown (10YR 5/3) masses of iron and manganese accumulations; 20 percent shale and 5 percent coarse gravel 2 inches in diameter; very strongly acid; abrupt wavy boundary. (Combined thickness of the BC horizon is 6 to 30 inches)
2C--80 to 90 inches; light brownish gray (10YR 6/2) sand; single grained; loose; few shale fragments; moderately acid.
TYPE LOCATION: Porter County, Indiana; about 2 miles east and 2 miles south of Valparaiso, 380 feet west and 740 feet north of the southeast corner, Sec. 32, T. 35 N., R. R 5 W; U.S.G.S. Valparaiso, IN topographic quadrangle; Latitude 41 degrees, 26 minutes, 11.5 seconds North and Longitude 087 degrees, 00 minutes, 32.24 seconds West; NAD 1927.
RANGE IN CHARACTERISTICS: The depth to the base of soil development ranges from 40 to 80 inches or more. The amount of shale and gravel in the A horizon ranges from 1 to 15 percent and in the B horizon ranges from about 5 to 30 percent. The umbric epipedon ranges from 10 to 20 inches in thickness and includes the upper part of the argillic horizon in some pedons. The solum commonly is strongly acid or very strongly acid except for the umbric epipedon which ranges from moderately acid to neutral. In some pedons the lower part of the solum is moderately acid or slightly acid.
The A horizon has hue of 10YR, value of 2 or 3 and chroma of 1 to 3. Texture is loam, sandy loam or silt loam.
The Bt horizon has hue of 10YR or 7.5YR, value of 3 to 5 and chroma of 3 to 5. In some pedons the chroma ranges from 2 to 6 in the lower part. It is commonly a loam or sandy clay loam and subhorizon include sandy loam and clay loam or channery or gravelly analogues of any of these textures.
The 2C horizon has hue of 10YR, 2.5Y or 5Y, value of 4 or 6, and chroma of 2 to 4. It commonly is gravelly analogues of sand, gravelly sand or channery sand. The 2C horizon is moderately acid to neutral directly below the control section and the horizon is moderately alkaline (calcaureous) at depths ranging from 6 to 8 feet or more.
COMPETING SERIES: These are
Culleoka,
Dumfries,
Ebbing,
Frondorf,
Grayford,
Kell,
Lamotte,
Loudonville,
Spriggs, and
Williamsburg series. None of these soils have thick dark surface layers more than 10 inches thick. Culleoka, Frondorf, Loudonville, and Spriggs soils have a lithic contact at depths of 40 or less. Dumfries soils solum thickness ranges from 18 to 40 inches. The Ebbing soils do not contain shale fragments. Grayford soils have a lithic contact that ranges from 40 to 60 inches. Kell soils have a paralithic contact that ranges from 20 to 40 inches. Lamotte soils have hue of 7.5YR or redder
in the lower part of the series control section.
Williamsburg soils have a surface layer less than 6 inches thick with value and chroma of 4 or more.
GEOGRAPHIC SETTING: Door soils are no outwash plains. Slopes range from 0 to 6 percent. The soils formed in loamy glacial outwash containing a fairly large amount shale and low in carbonates Mean annual precipitation ranges from about 30 to 40 inches, and mean annual temperature ranges from about 46 to 54 degrees F, frost free days range from 130 to 170 days, and elevation ranges from 580 feet to 1020 feet above sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Coupee,
Lydick,
Tracy and Toxel soils which formed in similar material. The Coupee is similar to Door soils except it has a contrasting layer above 40 inches. Lydick soils are well drained soils occurring on similar slopes but have a thinner dark surface layer. They often occur in the landscape between Door and Tracy soils. Tracy soils have light colored surfaces, are well drained, and occur on nearly level to moderately steep slopes.
Troxel soils occur in the depressions and have thick dark surface.
DRAINAGE AND PERMEABILITY: Door soils are well drained. The potential for surface runoff is
negligible to medium. Permeability is moderate.
USE AND VEGETATION: Most areas are in cropland with corn, wheat, soybeans, small grain and grass legume mixtured. Native vegetation is prairie grass.
DISTRIBUTION AND EXTENT: MLRA 111 in Northern Indiana and possibly southwestern Michigan. Moderately extensive, more than 10,000 acres.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS
SERIES ESTABLISHED: Laporte County, Indiana, 1934
REMARKS: Diagnostic horizons and features recognized in this pedon are:
umbric epipedon - 0 to 17 inches (Ap, A1, A2);
argillic horizon - 17 to 51 inches (Bt1, Bt2, Bt3, Bt4).
National Cooperative Soil Survey
U.S.A.