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Weverton and Loudoun Formations, undivided (PACAwl;24)
Geologic Formation
in
PA
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Lithology
Arkose
Conglomerate
Slate
Other
(56 mi²)
Geologic Age
Cambrian (542 Ma – 487.3 Ma ago)
Geologic Unit Label
CAwl4
In descending order: Weverton–gray to purplish-gray quartzite and quartzose conglomerate containing rounded pebbles. Loudoun–sericitic slate and purplish-gray, crumbly, poorly sorted, arkosic sandstone and conglomerate.
—
USGS
Taxonomy
Classified As
Geologic Formation
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