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Multimedia Gallery - Coating of organic matter and clay

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Coating of organic matter and clay




ID # 235

Coating of organic matter and clay
From the Soil Micromorphology Slide Collection

STEM Standard addressed: ESS2E - Biogeology


Appropriate Grade Level(s)
  • College-level
Materials are best used for
  • Classroom Lectures
  • Laboratory Activities
General Course Areas
  • Soil Microbiology
Description
Micromorphological description of slide: Coating of clay and organic matter (20 µm)

Data for the horizon
Horizon sampled: Bt
Depth sampled: 46-55 cm
Physical and chemical data: QC = 0.5%, bulk density=1.8 Mg.m-3

Data for thin section Preparation of sample: Air dry
Impregnating medium: Epoxy
Thickness of section: 30 µm
Orientation of section: Horizontal

Soil Classification:
USA: Mixed mesic Typic Hapludalf (Russell series)

Physiographic position: Summit Topography: Rolling
Parent material: Glacial till
Vegetation: Native oak-hickory; contemporary corn/soybean

Method
Data for 35-mm slide
Frame length: 1940 µm
Light mode: Plane polarized

References
S. J. Livingston, L. D. Norton and L. T. West. 1990. Effect of long-term cultivation on aggregate stability, organic carbon distribution, and porosity of two soil series. p. 89-95. In L.A. Douglas
(ed.) Soil micromorphology: A basic and applied science. Proc. 8th Inter. Working Meeting on Soil Micromorphology, San Antonio (1988). Elsevier, Amsterdam.
Source - S. Livingston and L. D. Norton

Slide CT49. Soil Science Society of America, 1993. A Reference Slide Collection for Soil Micromorphology. SSSA, Madison, WI.

Peer Review: Yes

Credit this item to: SSSA
Media Date: 1993-01-01
Provided By: (SSSA) Soil Science Society of America

Latitude: 40.4167022
Longitude: -86.87528689999999

Author(s)/Creator(s)

  • * Soil Science Society of America
    SSSA

Submitted By: (SSSA) Soil Science Society of America


Keywords

  • Coatings
  • Bt Horizon
  • micromorphology
  • Coating of organic matter

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