Wilmington Area Bedrock Geology Research
Piedmont crystalline bedrock · New Castle
DELAWARE ROCKHOUNDING DIRECTORY
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Piedmont crystalline bedrock · New Castle
igneous/metamorphic rocks and associated minerals · New Castle
subaqueous Pleistocene and marine fossil material · Statewide
Cretaceous, Miocene and Pleistocene fossils · Statewide
Cretaceous through Holocene sedimentary units · Statewide
glauconite-bearing Coastal Plain sediments · Statewide
roadside geologic exposures · Statewide
sand, gravel and borrow-pit materials · Statewide
stream-bank fossils, sediments and Piedmont rocks · Statewide
historical sand, gravel, stone and fossil pits · Statewide
coastal and bay deposits · Sussex
coastal sand, dune and Holocene shoreline deposits · Sussex
Pleistocene marine fossils · Sussex
quartz pebbles and beach sediments · Sussex
Coastal Plain deposits · Sussex
Coastal Plain surficial units · Sussex
Coastal Plain deposits and stratigraphy · Sussex
Coastal Plain surficial geology · Sussex
coastal plain and estuarine deposits · Sussex
Coastal Plain deposits · Sussex
young marine Pleistocene fossils · Sussex
Coastal Plain surficial deposits · Sussex
coastal sands and surficial deposits · Sussex
Coastal Plain units and sediment resources · Sussex
county bedrock, surficial geology, minerals, fossils, borrow pits and historical extraction contexts · Sussex
Coastal Plain surficial geology · Sussex
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