andisol

Also known as volcanic soil

upright=1.6|thumb|Andisols of the world upright=1.6|thumb|Many Andisols develop in the immediate vicinity of volcanoes

Key facts

Soil.name: Andisol
Soil.alternative_name: Andosol
Soil.image: Andisol profile.jpg
Soil.image_size: 250px
Soil.image_caption: An andisol profile
Soil.classification_system: USDA soil taxonomy, World Reference Base for Soil Resources
Soil.profile: ABwC
Soil.parent_material: tephra

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Image: Andisol.jpg

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Commons category: Andisols

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upright=1.6|thumb|Andisols of the world upright=1.6|thumb|Many Andisols develop in the immediate vicinity of volcanoes

In USDA soil taxonomy, andisols are soils formed in volcanic ash and defined as soils containing high proportions of glass and amorphous colloidal materials, including allophane, imogolite and ferrihydrite. In the World Reference Base for Soil Resources (WRB), andisols are known as Andosols.