A map of the Sebago Granite unit and the surrounding biotite granite, modified from the Naples Quadrangle USGS geologic map.[1]
Type
Geological Formation
Overlies
Central Maine Belt
Lithology
Primary
Granite
Location
Region
Southern Maine, United States
Country
United States
The Sebago Granite is a Carboniferous aged granite that appears in southern Maine.[2][3] The formation covers around 400 square kilometers in area, and intruded into the surrounding rock approximately 325 million years ago.[2][3][4]