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Data Sources
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Ecoregions
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BASEMAPS
Default Weather
Temperature
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WEATHER
Late and middle Pleistocene surficial deposits (AZQm;0)
Geologic Formation
in
AZ
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Lithology
Clay
Silt
Sand
Geologic Age
Middle Pleistocene – Pleistocene (0.75 Ma ago – 7980 BC)
Geologic Unit Label
Qm
Unconsolidated to weakly consolidated alluvial fan, terrace, and basin-floor deposits with moderate to strong soil development. Fan and terrace deposits are primarily poorly sorted, moderately bedded gravel and sand, and basin-floor deposits are primarily sand, silt, and clay. (10-750 ka)
—
USGS
Taxonomy
Classified As
Geologic Formation
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