graben

graben Definition

gra·ben (grä′bən)

noun

a relatively long, narrow area of the earth's crust that has subsided between two bordering faults

Etymology: Ger, a ditch < OHG grabo < graban, to dig: see grave

graben Usage Examples

Modifies a noun

structure: The graben structure is probably restricted at extremely shallow part of the crust in the Unzen volcanic area.
basin: The province consists of Tertiary half graben basins infilled with carbonate and clastic sedimentary rocks unconformably overlying pre Tertiary metamorphic and igneous rocks.

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