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

Geologic units in Kennebec county, Maine

[Additional scientific data in this geographic area]

Silurian - Ordovician unnamed sulfidic pelite (Silurian - Ordovician) at surface, covers 0.7 % of this area

Silurian - Ordovician unnamed sulfidic pelite

Lithology: mudstone

Devonian granodiorite (Devonian) at surface, covers 2 % of this area

Devonian granodiorite - biotite granodiorite

Lithology: granodiorite

Silurian Sangerville Formation limestone member (Silurian) at surface, covers 3 % of this area

Silurian Sangerville Formation limestone member

Lithology: marble; calc-silicate rock; granofels; schist

Ordovician - Precambrian Z Cushing Formation (Ordovician - Precambrian Z) at surface, covers 6 % of this area

Ordovician - Precambrian Z Cushing Formation

Lithology: mafic metavolcanic rock; felsic metavolcanic rock

Silurian - Ordovician Vassalboro formation (Silurian - Ordovician) at surface, covers 28 % of this area

Silurian - Ordovician Vassalboro formation

Lithology: sandstone; quartzite; schist; limestone

Silurian Smalls Falls Formation (Silurian) at surface, covers 0.4 % of this area

Silurian Smalls Falls Formation

Lithology: shale; sandstone; calc-silicate rock

Silurian Waterville Formation limestone member (Silurian) at surface, covers 2 % of this area

Silurian Waterville Formation limestone member

Lithology: calc-silicate rock; metasedimentary rock; marble; slate; schist; black shale

Devonian foid-bearing syenite (hornblende accessory mineral) (Devonian) at surface, covers 0.2 % of this area

Devonian foid-bearing syenite (hornblende accessory mineral); hornblende-bitoite foid-bearing syenite

Lithology: syenite

Silurian Unnamed sulfidic pelite (Silurian) at surface, covers 3 % of this area

Silurian Unnamed sulfidic pelite

Lithology: mudstone

Ordovician - Precambrian Z Cushing Formation mafic volcanic member (Ordovician - Precambrian Z) at surface, covers < 0.1 % of this area

Ordovician - Precambrian Z Cushing Formation mafic volcanic member

Lithology: mafic volcanic rock

Ordovician - Precambrian Z Cushing Formation sulfidic pelite (Ordovician - Precambrian Z) at surface, covers 0.3 % of this area

Ordovician - Precambrian Z Cushing Formation sulfidic pelite

Lithology: mudstone; sandstone

Ordovician - Precambrian Z Cape Elizabeth Formation (Ordovician - Precambrian Z) at surface, covers < 0.1 % of this area

Ordovician - Precambrian Z Cape Elizabeth Formation

Lithology: slate; schist; quartzite; phyllite

Silurian Sangerville Formation (Silurian) at surface, covers 18 % of this area

Silurian Sangerville Formation

Lithology: sandstone; shale; limestone; calc-silicate rock; granofels; schist; metasedimentary rock; conglomerate

Devonian gabbro/diorite/ultramafic rocks (Devonian) at surface, covers < 0.1 % of this area

Devonian gabbro/diorite/ultramafic rocks

Lithology: gabbro; diorite; ultramafic intrusive rock

Silurian Perry Mountain formation (Silurian) at surface, covers 0.8 % of this area

Silurian Perry Mountain formation

Lithology: sandstone; shale; quartzite

Devonian quartz monzonite (muscovite accessory mineral) (Devonian) at surface, covers 2 % of this area

Devonian quartz monzonite (muscovite accessory mineral) - muscovite-biotite quartz monzonite

Lithology: quartz monzonite

Devonian granite (Devonian) at surface, covers 8 % of this area

Devonian granite

Lithology: granite

Carboniferous alkali feldspar quartz syenite (Carboniferous) at surface, covers < 0.1 % of this area

Carboniferous alkali feldspar quartz syenite - alkali feldspar-biotite quartz syenite

Lithology: quartz syenite

Devonian - Silurian Madrid Formation (Devonian - Silurian) at surface, covers 0.4 % of this area

Devonian - Silurian Madrid Formation

Lithology: quartzite; calc-silicate rock

Carboniferous syenite (Carboniferous) at surface, covers 0.2 % of this area

Carboniferous biotite syenite undivided

Lithology: syenite

Silurian Sangerville Formation sulfidic pelite member (Silurian) at surface, covers < 0.1 % of this area

Silurian Sangerville Formation sulfidic pelite member

Lithology: shale

Carboniferous gabbro/diorite/ultramafic rocks (Carboniferous) at surface, covers 0.7 % of this area

Carboniferous gabbro/diorite/ultramafic rocks undivided

Lithology: gabbro; diorite; ultramafic intrusive rock

Ordovician - Precambrian Z Cushing Formation quartzite (Ordovician - Precambrian Z) at surface, covers < 0.1 % of this area

Ordovician - Precambrian Z Cushing Formation quartzite

Lithology: quartzite

Silurian - Ordovician unnamed pelite (Silurian - Ordovician) at surface, covers 0.7 % of this area

Silurian - Ordovician unnamed pelite

Lithology: mudstone

Devonian granite (muscovite accessory mineral) (Devonian) at surface, covers 2 % of this area

Devonian granite (muscovite accessory mineral) - muscovite-biotite granite undivided

Lithology: granite

Silurian Waterville Formation (Silurian) at surface, covers 16 % of this area

Silurian Waterville Formation

Lithology: slate; schist; graywacke; calc-silicate rock; black shale

Silurian Sangerville Formation Patch Mountain member (Silurian) at surface, covers 4 % of this area

Silurian Sangerville Formation Patch Mountain member

Lithology: marble; calc-silicate rock; granofels; schist