The Setters Formation is a geological formation that is located in Maryland, Pennsylvania, and Delaware in the United States. The formation is metamorphic and consists of a complex suite of schist, gneiss, and quartzite.[1]

Setters Formation
Stratigraphic range: late Precambrian
Outcrop of Setters Formation along Marriottsville Road, Baltimore County
Typemetamorphic
Unit ofGlenarm Group
UnderliesCockeysville Marble
OverliesBaltimore Gneiss
Lithology
PrimaryMica-schist
OtherMuscovite-gneiss and quartzite
Location
RegionPiedmont of eastern North America
Country United States
ExtentMaryland, Pennsylvania, Delaware
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References

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  1. ^ Crowley, William P.; Cleaves, Emery T. (1974). Geologic map of the Towson Quadrangle, Maryland (Map). 1:24000. Maryland Geological Survey.