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geologic map

1. n. [Geology]

A map showing the type and spatial distribution of rocks at the surface of the Earth. Rock formations are color-coded and symbols for geological structures are annotated, so age relationships are evident. Topographic contours and cultural features can also appear on geologic maps.

See: alidadeformationformationGlobal Positioning Systemoutcropplane tablestructuretopographic map

Geologic map of a portion of the Middle East.

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