Multimedia Gallery - Ultisol: Plinthustult

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Ultisol: Plinthustult

ID # 123

Ultisol: Plinthustult
From The Marbut Memorial Slide Collection

STEM Standard addressed: LS2B - Cycles of Matter and Energy Transfer in Ecosystems

Appropriate Grade Level(s)
  • 9-12
  • College-level
Materials are best used for
  • Classroom Lectures
  • Distance Education Classes
  • Extension Presentations
General Course Areas
  • Soil Taxonomy and Genesis

Category: Ultisols

Slide 9-7. Plinthustult. Red-Yellow Podzolic Soil. Location: Lajas Valley, Puerto Rico. Parent Material: Sandy marine deposits on old marine terraces. Horizons and Depths: Ap 0-13 cm (0-5"); E 13-25 cm (5-10"); Bv 25-51 cm (10-20"); Bt 51-63 cm (20-25"); 2C 63-89 cm+ (25-35"). The mottling of the 2C horizon is characteristic of plinthite. At this site, this horizon is soft but it is indurated in a nearby old roadcut. The Bv horizon contains some 75 percent partly indurated plinthite nodules (perdigons).

Soil Science Society of America. 1993. The Marbut Memorial Slides. SSSA, Madison, WI.

Peer Review: Yes

Credit this item to: SSSA
Media Date: 1993-07-01
Provided By: (SSSA) Soil Science Society of America


  • * Soil Science Society of America

Submitted By: (SSSA) Soil Science Society of America


  • Marbut
  • Soil Order
  • Soil Horizon - General
  • Soil Profile - General
  • Ustult
  • Red-Yellow Podzolic Soil


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