THE MIDCONTINENT RIFT SYSTEM IN IOWA

CLASTIC BASINS

Clastic rocks associated with the Midcontinent Rift System in Iowa are preserved in a series of basins. The bulk of these clastic rocks lie in basins that flank the Iowa Horst, but several basins on the horst also preserve rift clastics.

(click for map of basins).

For more information on the clastic basins click on the appropriate line below.

HORST-FLANKING BASINS

Eastern Clastic Basins
-Wellsburg Basin
-Ankeny Basin
-Shenandoah Basin

Western Clastic Basins
-Duncan Basin
-Defiance Basin

BASINS ON THE HORST

-Ames Block
-Stratford Basin
-Jewell Basin
-Mineola Basin

return to Midcontinent Rift System of Iowa