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 | |
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Stratigraphic range: late Precambrian | |
![]() Outcrop of Setters Formation along Marriottsville Road, Baltimore County | |
Type | metamorphic |
Unit of | Glenarm Group |
Underlies | Cockeysville Marble |
Overlies | Baltimore Gneiss |
Lithology | |
Primary | Mica-schist |
Other | Muscovite-gneiss and quartzite |
Location | |
Region | Piedmont of eastern North America |
Country | ![]() |
Extent | Maryland, Pennsylvania, Delaware |
Gallery
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Setters Formation showing schist with tourmaline or hornblende crystals on the foliation plane
References
edit- ^ Crowley, William P.; Cleaves, Emery T. (1974). Geologic map of the Towson Quadrangle, Maryland (Map). 1:24000. Maryland Geological Survey.