Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > North Carolina Geology
Geologic units in Greene county, North Carolina
- Black Creek Formation (Cretaceous) at surface, covers 19 % of this area
Black Creek Formation - clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part.
- Peedee Formation (Cretaceous) at surface, covers 9 % of this area
Peedee Formation - sand, clayey sand, and clay, greenish gray to olive black, massive, glauconitic, locally fossiliferous and calcareous. Patches of sandy molluscan-mold limestone in upper part.
- Cape Fear Formation (Cretaceous) at surface, covers 2 % of this area
Cape Fear Formation - sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuos bedding, blocky clay, faint cross-bedding, feldspar and mica common.
- Yorktown Formation and Duplin Formation, Undivided (Tertiary) at surface, covers 69 % of this area
Yorktown Formation and Duplin Formation, Undivided - Yorktown Formation: fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River.