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Iron oxide quasicoating




ID # 214

Iron oxide quasicoating
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
Description of slide: A quasicoating of Fe oxide surrounds a clay infilling in a pore.

Data for the horizon
Horizon sampled: Bg1
Depth sampled: 40-52 cm
Physical and chemical data available: pH = 5.0; OC = 0.39%; sand - 38%, clay 8% (fine earth fraction); coarse fragments = 4%; bulk density — 1 .70 Mg m-3
Macromorphological description of horizon: 5 GY 6/1 to 5 G 6/1 silt loam matrix; weak coarse subangular blocky structure

Location: Hampshire County, Amherst, Massachusetts
Topography and hill slope position: 3% east-facing toeslope at edge of wetland
Soil climatic data and/or soil water balance: Poorly drained
Vegetation: Abandoned orchard and pasture area adjacent to wetland, vegetation includes gray birch, high-bush blueberries, and grass

Method
Data for 35-mm slide
Description of slide: A quasicoating of Fe oxide surrounds a clay infilling in a pore.
Frame length: 3 mm
Light mode: Plane polarized

References
Source - David Lindbo

Slide CT27. 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: 42.3732216
Longitude: -72.5198537

Author(s)/Creator(s)

  • * Soil Science Society of America
    SSSA

Submitted By: (SSSA) Soil Science Society of America


Keywords

  • Coatings
  • Bg1 horizon
  • micromorphology
  • Iron oxide quasicoating

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