LOCATION HIBLER VA

Established Series
Rev. JMG, ACB
04/2018

HIBLER SERIES

The Hibler series consists of very deep and moderately well drained soils formed in transported materials washed from uplands underlain by limestone, granite, or metamorphosed schist. They are on river terraces. Slopes range from 0 to 7 percent. Mean annual air temperature is about 51 degrees F. Mean annual precipitation is about 40 inches.

TAXONOMIC CLASS: Fine-silty, mixed, semiactive, mesic Aquic Hapludults

TYPICAL PEDON: Hibler silt loam - on a 2 percent slope in a sod field. (colors are for moist soil)

Ap -- 0 to 8 inches; brown (7.5YR 5/4) silt loam; weak medium granular structure; friable, slightly sticky, nonplastic; many very fine and fine roots; strongly acid; abrupt smooth boundary. (5 to 10 inches thick)

Bt1 -- 8 to 29 inches; strong brown (7.5YR 5/6) silty clay loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; common fine roots; common faint clay films on faces of peds; 1 percent gravel; few medium faint light brown (7.5YR 6/4) masses of iron accumulation; few medium distinct pinkish gray (7.5YR 7/2) iron depletions on ped faces and in pores; strongly acid; clear smooth boundary.

Bt2 -- 29 to 47 inches; strong brown (7.5YR 5/8) clay; moderate, medium subangular blocky structure; firm, sticky, slightly plastic; many distinct clay films on faces of peds; 2 percent gravel; few medium prominent red (2.5YR 4/6) masses of iron accumulation; few medium distinct pinkish gray (7.5YR 7/2) iron depletions on faces of peds; strongly acid; clear smooth boundary. (Combined thickness of the Bt horizon is 40 to 90 inches)

Btg -- 47 to 61 inches; pinkish gray (7.5YR 6/2) clay loam; moderate medium subangular blocky structure; firm; sticky, slightly plastic; few distinct clay films on faces of peds; 2 percent gravel; common medium distinct strong brown (7.5YR 4/6) masses of iron accumulation on ped faces; strongly acid. Clear smooth boundary. (Thickness of the Btg is 0 to 20 inches)

2C -- 61 to 70 inches; strong brown (7.5YR 5/8) sandy clay loam; massive; friable, slightly sticky, slightly plastic; 2 percent gravel; many medium prominent red (2.5YR 4/6) masses of iron accumulation; many medium distinct pinkish gray (7.5YR 7/2) iron depletions in soil matrix; strongly acid.

TYPE LOCATION: Loudoun County, Virginia; about 600 feet north of junction of VA-814 and VA-819, and 200 feet west of Gravel Lane.

RANGE IN CHARACTERISTICS: Solum thickness ranges from 45 to more than 60 inches. Depth to bedrock is more than 60 inches. Rock fragments range from 0 to 5 percent throughout. Reaction is extremely acid through strongly acid.

The Ap horizon has hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 4 through 6. It is silt loam.

The Bt horizon has hue of 5YR through 10YR, value of 4 through 6, and chroma of 1 through 8. It is silt loam or silty clay loam in the upper part, and silt loam, silty clay loam, clay loam or clay in the lower part.

The Btg horizon, where present, has hue of 5YR through 10YR, value of 4 through 6, and chroma of 1 or 2. It is silt loam or silty clay loam.

The 2C horizon, where present, has hue of 2.5YR through 10 YR, value of 4 through 7, and chroma of 1 through 8. Texture is variable, ranging from sandy loam to clay.

COMPETING SERIES: These are the Berea, Deputy, Knobtop, and Morehead series in the same family. Berea and Knobtop soils are moderately deep. Deputy soils have a loess layer 20 to 30 inches thick. Morehead soils have hues redder than 5YR in the Bt horizons.

GEOGRAPHIC SETTING: Hibler soils are on concave river terrace positions. They formed in transported material from uplands underlain by limestone, granitic rocks, and metamorphosed schist. Slope ranges from 0 to 7 percent. Mean annual air temperature ranges from 49 to 57 degrees F. Mean annual precipitation ranges from 35 to 45 inches.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Goresville, Elsinboro, Clapham (tentative), and Kinkora soils. Goresville and Elsinboro soils are well drained. Clapham soils have a fragipan. Kinkora soils are poorly drained.

DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff is slow. Permeability is slow.

USE AND VEGETATION: Row crop, hayland, and woodland.

DISTRIBUTION AND EXTENT: Virginia and possibly Maryland and Pennsylvania. The series is of small extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: RALEIGH, NORTH CAROLINA

SERIES ESTABLISHED: Loudoun County, Virginia. 2004.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
1. Ochric epipedon - zone from the surface to 8 inches (Ap horizon)
2. Argillic horizon-zone from 8 to 61 inches (Bt and Btg horizons)
3. Aquic feature-gray iron depletions in the upper 24 inches of the argillic horizon

SIR=VA0388
MLRA=148
REVISED=8/23/94, MHC

National Cooperative Soil Survey
U.S.A.