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Beaufort Formation, Undivided

Beaufort Formation, Undivided - Unnamed upper member: sand and silty clay, glauconitic, fossiliferous, and locally calcareous. Jericho Run Member: siliceous mudstone with sandstone lenses, thin bedded; basal phosphatic pebble conglomerate.
State North Carolina
Name Beaufort Formation, Undivided
Geologic age Tertiary
Primary rock type sand
Secondary rock type clay or mud
Other rock types silt; mudstone; sandstone; conglomerate
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > SandUnnamed upper member: sand; glauconitic, fossiliferous, and locally calcareous
Minor
Unconsolidated > Fine-detrital > SiltUnnamed upper member: silty clay; glauconitic, fossiliferous, and locally calcareous
Unconsolidated > Fine-detrital > ClayUnnamed upper member: silty clay; glauconitic, fossiliferous, and locally calcareous
Sedimentary > Clastic > Mudstone (Bed)Jericho Run Member: siliceous mudstone, thin bedded
Incidental
Sedimentary > Clastic > Sandstone (Lense)Jericho Run Member: with sandstone lenses
Sedimentary > Clastic > ConglomerateJericho Run Member: basal phosphatic pebble conglomerate.
Map references
The North Carolina Dept. of Environment, Health, and Natural Resources, Division of Land Resources, NC Geological Survey, in cooperation with the NC Center for Geographic Information and Analysis, 1998, Geology - North Carolina (1:250,000), coverage data file geol250. The data represents the digital equivalent of the official State Geology map (1:500,000 scale), but was digitized from (1:250,000 scale) base maps.
Unit references
Rhodes, Thomas S., and Conrad, Stephen G., 1985, Geologic Map of North Carolina: Department of Natural Resources and Community Development, Division of Land Resources, and the NC Geological Survey, 1:500,000-scale, compiled by Brown, Philip M., et al, and Parker, John M. III, and in association with the State Geologic Map Advisory Committee.
The North Carolina Dept. of Environment, Health, and Natural Resources, Division of Land Resources, NC Geological Survey, in cooperation with the NC Center for Geographic Information and Analysis, 1998, Geology - North Carolina (1:250,000), coverage data file geol250. The data represents the digital equivalent of the official State Geology map (1:500,000 scale), but was digitized from (1:250,000 scale) base maps.
Counties Craven - Lenoir - Pender