Geologic units in Hancock county, Maine

Additional scientific data in this geographic area

Devonian granite (Devonian) at surface, covers 22 % of this area

Devonian granite

Devonian alkali feldspar granite (Devonian) at surface, covers 16 % of this area

Alkali feldspar-biotite granite

Ordovician - Precambrian Z Ellsworth formation (Ordovician - Precambrian Z) at surface, covers 12 % of this area

Ordovician - Precambrian Z Ellsworth formation

Silurian - Ordovician Vassalboro Formation (Silurian - Ordovician) at surface, covers 7 % of this area

Silurian - Ordovician Vassalboro formation

Devonian - Ordovician Bucksport Formation (Devonian - Ordovician) at surface, covers 6 % of this area

Devonian - Ordovician Bucksport Formation

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

Hornblende-biotite granite undivided

Devonian quartz monzonite (hornblende accessory mineral) (Devonian) at surface, covers 4 % of this area

Hornblende-biotite quartz monzonite

Penobscot Formation (Ordovician - Cambrian) at surface, covers 4 % of this area

Penobscot Formation

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

Muscovite-biotite granite undivided

Devonian - Silurian Castine Formation (Devonian - Silurian) at surface, covers 3 % of this area

Devonian - Silurian Castine Formation

Devonian gabbro/diorite/ultramafic rocks (Devonian) at surface, covers 3 % of this area

Devonian gabbro/diorite/ultramafic rocks

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

Hornblende-biotite granite

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

Devonian hornblende-biotite granite to quartz monzonite- hornblende-biotite granite, hornblende-biotite granodiorite, hornblende-biotite tonalite, hornblende-biotite alkali feldspar quartz syenite, hornblende-biotite quartz syenite, and hornblende-biotite quartz monzonite.

Ordovician - Precambrian Z metasedimentary and metavolcanic rocks of the Passagassawakeag block (Ordovician - Precambrian Z) at surface, covers 2 % of this area

Ordovician - Precambrian Z metasedimentary and metavolcanic rocks of the Passagassawakeag block

Devonian quartz monzonite (Devonian) at surface, covers 0.9 % of this area

Devonian quartz monzonite

Devonian granite (porphyritic texture) (Devonian) at surface, covers 0.8 % of this area

Biotite granite undivided

Devonian - Ordovician Flume Ridge Formation (Devonian - Ordovician) at surface, covers 0.6 % of this area

Devonian - Ordovician Flume Ridge Formation

Carboniferous - Devonian unnamed conglomerate and sandstone (Carboniferous and/or Devonian) at surface, covers 0.6 % of this area

Carboniferous - Devonian unnamed conglomerate and sandstone

Devonian granite (intrusive breccia texture) (Devonian) at surface, covers 0.6 % of this area

Devonian granite (intrusive breccia texture)

Undifferentiated mafic to felsic volcanic rocks (Devonian - Ordovician) at surface, covers 0.5 % of this area

Undifferentiated mafic to felsic volcanic rocks

Precambrian Z rocks of Islesboro (Precambrian Z) at surface, covers 0.4 % of this area

Precambrian Z rocks of Islesboro

Devonian - Silurian Bar Harbor Formation (Devonian - Silurian) at surface, covers 0.3 % of this area

Devonian - Silurian Bar Harbor Formation

Ordovician - Cambrian Penobscot Formation extensively migmatized area (Ordovician - Cambrian) at surface, covers 0.3 % of this area

Ordovician - Cambrian Penobscot Formation extensively migmatized area

Devonian granite (pyroxene plus hornblende accessory mineral) (Devonian) at surface, covers 0.3 % of this area

Pyroxene-hornblende-biotite granite undivided

Ordovician - Precambrian Z calc-silicate rocks of the Passagassawakeag block (Ordovician - Precambrian Z) at surface, covers 0.2 % of this area

Ordovician - Precambrian Z calc-silicate rocks of the Passagassawakeag block

Ordovician - Precambrian Z interbedded pelite and quartz sandstone of the Passagassawakeag block (Ordovician - Precambrian Z) at surface, covers 0.2 % of this area

Ordovician - Precambrian Z interbedded pelite and quartz sandstone of the Passagassawakeag block

Ordovician - Precambrian Z Ellsworth formation, quartz granofels member (Ordovician - Precambrian Z) at surface, covers 0.2 % of this area

Ordovician - Precambrian Z Ellsworth formation quartz granofels member

Ordovician - Precambrian Z Ellsworth formation, greenstone member (Ordovician - Precambrian Z) at surface, covers 0.2 % of this area

Ordovician - Precambrian Z Ellsworth formation greenstone member

Precambrian Z North Haven Formation (Precambrian) at surface, covers 0.1 % of this area

Precambrian Z North Haven Formation

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

Devonian biotite monzodiorite

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

Biotite granite

Silurian ultramafic rocks (Silurian) at surface, covers < 0.1 % of this area

Silurian ultramafic rocks

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

Devonian biotite syenite undivided

Devonian - Precambrian Z Appleton Ridge Formation (Devonian - Precambrian Z) at surface, covers < 0.1 % of this area

Devonian - Precambrian Z Appleton Ridge Formation