Baltimore Gneiss

Baltimore Gneiss
Stratigraphic range: Precambrian
Photomicrograph of Baltimore Gneiss
TypeGeological formation
UnderliesSetters Formation
Lithology
PrimaryGneiss
OtherParagneiss and amphibolite
Location
RegionPiedmont of eastern North America
CountryUnited States
ExtentMaryland
Type section
Named forBaltimore

The Baltimore Gneiss is a Precambrian geological formation in the Piedmont region of Maryland, Pennsylvania, and Delaware.

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