Geologic units in Chambers county, Texas

Beaumont Formation, areas predominantly clay (Quaternary; Late Pleistocene) at surface, covers 50 % of this area

Beaumont Formation, areas predominantly clay

Beaumont Formation, areas predominantly sand (Quaternary; Late Pleistocene) at surface, covers 22 % of this area

Beaumont Formation, areas predominantly sand

Alluvium (Holocene) at surface, covers 20 % of this area

Alluvium

Barrier island deposits (Quaternary) at surface, covers 7 % of this area

Barrier island deposits

Deweyville Formation with higher level? (Quaternary; Pleistocene and Holocene?) at surface, covers 1 % of this area

Deweyville Formation with higher level?

Barrier ridge and barrier flat deposts (Quaternary; Holocene) at surface, covers 0.1 % of this area

Barrier ridge and barrier flat deposts

Fill and spoil (Holocene) at surface, covers < 0.1 % of this area

Fill and spoil