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Mineral Resources > Online Spatial Data > Geology > by state > Louisiana Geology

Geologic units in Morehouse Parish, Louisiana

Braided Stream Terraces (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 20 % of this area

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

Lithology: sand; clay or mud; silt; gravel

Alluvium - Alluvial deposits of local streams or of overbank flow of major streams (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers < 0.1 % of this area

Alluvial deposits of local streams or of overbank flow of major streams - In some areas includes deposits in abandoned meanders of major streams

Lithology: alluvium

Alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 21 % of this area

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

Lithology: clay or mud; sand; gravel

Natural Levees (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 29 % of this area

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

Lithology: silt; clay or mud; sand

Alluvium - Alluvial deposits in major stream channels or in mappable meanders of major streams (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers < 0.1 % of this area

Alluvial deposits in major stream channels or in mappable meanders of major streams - Includes alluvial deposits in natural levees in some areas.

Lithology: alluvium

Deweyville Terrace (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 10 % of this area

gray mixed with brown-to-red clay and silty clay; some sand and gravel locally.

Lithology: clay or mud; sand; gravel

Prairie Terraces (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 13 % of this area

light gray to light brown clay, sandy clay, silt, sand, and some gravels. Overlain by 1-9 meters of loess.

Lithology: clay or mud; silt; sand; gravel

Prairie Terraces (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 7 % of this area

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

Lithology: clay or mud; silt; sand; gravel

Alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers < 0.1 % of this area

Alluvium - Alluvial deposits of present streams

Lithology: alluvium

Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Late) at surface, covers < 0.1 % of this area

Terrace deposits - Alluvial deposits on one or more terrace levels

Lithology: alluvial terrace