lesson
Desert Varnish and Microbial Mineral Crusting
Explain the geochemical and bacterial precipitation of manganese and iron oxides that form dark desert varnish on rock faces.

Explain the geochemical and bacterial precipitation of manganese and iron oxides that form dark desert varnish on rock faces.
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9th Grade · Social Studies · US-SD-SS
7 lessons
Analyze wind erosion, sediment transport dynamics, sand dune morphologies, and characteristic arid landscape landforms.