Geologic units in Franklin Parish, Louisiana

Additional scientific data in this geographic area

Braided Stream Terraces (Pleistocene) at surface, covers 41 % of this area

Light gray, tan and brown fine to coarse sand; some clay silt and gravel. Overlain by 1-9 meters of loess.

Braided Stream Terraces (Pleistocene) at surface, covers 30 % of this area

Light gray, tan and brown fine to coarse sand; some clay silt and gravel.

Alluvium (Holocene) at surface, covers 17 % of this area

Gray to brownish gray clay and silty clay, reddish brown in the Red River Valley, some sand and gravel locally.

Natural Levees (Holocene) at surface, covers 12 % of this area

Gray and brown silt, silty clay, some very fine sand, reddish brown along the Red River.

Prairie Terraces (Pleistocene) at surface, covers 0.5 % of this area

Light gray to light brown clay, sandy clay, silt, sand, and some gravels.