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Mineral Resources > Online Spatial Data > Geology > by state > Maine Geology

Geologic units in Sagadahoc county, Maine

[Additional scientific data in this geographic area]

Ordovician - Precambrian Z Spring Point Formation (Ordovician - Precambrian Z) at surface, covers 2 % of this area

Ordovician - Precambrian Z Spring Point Formation

Lithology: metavolcanic rock

Ordovician - Precambrian Z Scarboro and Diamond Island formations (Ordovician - Precambrian Z) at surface, covers 4 % of this area

Ordovician - Precambrian Z Scarboro and Diamond Island formations

Lithology: metasedimentary rock

Ordovician - Precambrian Z Cape Elizabeth Formation (Ordovician - Precambrian Z) at surface, covers 31 % of this area

Ordovician - Precambrian Z Cape Elizabeth Formation

Lithology: slate; schist; quartzite; phyllite

Devonian granite (Devonian) at surface, covers 4 % of this area

Devonian granite

Lithology: granite

Ordovician - Precambrian Z Cushing Formation limestone (Ordovician - Precambrian Z) at surface, covers 1 % of this area

Ordovician - Precambrian Z Cushing Formation limestone

Lithology: limestone

Ordovician - Precambrian Z Cushing Formation (Ordovician - Precambrian Z) at surface, covers 40 % of this area

Ordovician - Precambrian Z Cushing Formation

Lithology: mafic metavolcanic rock; felsic metavolcanic rock

Silurian - Ordovician Vassalboro formation (Silurian - Ordovician) at surface, covers 16 % of this area

Silurian - Ordovician Vassalboro formation

Lithology: sandstone; quartzite; schist; limestone

Devonian granodiorite (Devonian) at surface, covers 0.1 % of this area

Devonian granodiorite - biotite granodiorite

Lithology: granodiorite

Ordovician - Precambrian Z Cushing Formation sulfidic pelite (Ordovician - Precambrian Z) at surface, covers 0.6 % of this area

Ordovician - Precambrian Z Cushing Formation sulfidic pelite

Lithology: mudstone; sandstone