Multimedia Gallery - Enaulic-chitonic related distribution pattern

From the Soil Micromorphology Slide Collection

Data for the horizon Horizon sampled: A 1 Depth sampled: 0-5 cm
Chemical description of horizon: pH = 4.1, OC = 9.0%, base saturation = 10%, free Fe203 =
1.4%
Partical size distribution: Coarse fragments = 9.3%, sand = 42.9%, silt = 47.1%, clay = 10%
Macromorphological description of horizon: 0 to 2 inches, black 1OYR 2/1 loam; moderate, medium crumb structure; friable; roots abundant; 15 to 20 percent coarse skeleton of sandstone fragments
Micromorphological description of horizon: Fine aggregates occur between larger sand grains, and sand grains are also coated with fine organic materials.

Data for thin section
Preparation of sample: Air dry
Impregnating medium: Polyester resin
Thickness of section: 30 um
Size of section: 25 X 50 mm
Orientation of section: Vertical

Soil Classification
U.S.: Typic Hapludult

Environment :
Physiographic position: Alleghany Plateau
Topography: Upper third of south-facing slope, 23% slope
Parent Material: Pennsylvanian interbedded sandstrone, siltstones, and shale Vegetation: Mixed hardwoods (oak, hickory, and beech).

Data for 35-mm slide
Magnification: 35 X
Light Mode: Plane polarized

Source - G. F. Hall

Slide RDP4. Soil Science Society of America, 1993. A Reference Slide Collection for Soil Micromorphology. SSSA, Madison, WI.