Precambrian Z rocks of Islesboro (MEZi;0)

State	Maine
Name	Precambrian Z rocks of Islesboro
Geologic age	Precambrian Z
Lithologic constituents	Major Sedimentary > Clastic > SiltstoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Sedimentary > Clastic > MudstoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Sedimentary > Clastic > SandstoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Minor Sedimentary > Clastic > ConglomerateGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Sedimentary > Carbonate > LimestoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Sedimentary > Carbonate > DolostoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Incidental Igneous > Volcanic > Felsic-volcanic > RhyoliteGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone Igneous > Volcanic > Mafic-volcanic > BasaltGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone
Comments	GS - Greenschist facies; Protolith V - Basaltic volcanic rocks
References	Osberg, P.H., Hussey, A.M., and Boone, G.M., 1985, Bedrock geologic map of Maine: Maine Geological Survey, Dept. of Conserv., scale 1:500,000. Rankin, D.W. (editor), Chiarenzelli, J.R., Drake, A.A., Jr., Goldsmith, Richard, Hall, L.M., Hinze, W.J., Isachsen, Y.W., Lidiak, E.G., McLelland, James, Mosher, Sharon, Ratcliffe, N.M., Secor, D.T., Jr. and Whitney, P.R., 1993, Proterozoic rocks east and southeast of the Grenville Front, IN Reed, J.C., Jr., and others, eds., Precambrian; conterminous U.S.: Geological Society of America, The Geology of North America, The Decade of North American Geology (DNAG), v. C-2, p. 335-461. US Geological Survey, 2005, National Geologic Map Database, Geologic Names Lexicon "GEOLEX", http://ngmdb.usgs.gov/Geolex/.
NGMDB product	NGMDB product page for 16547
Counties	Hancock - Knox - Waldo

State

Name

Precambrian Z rocks of Islesboro

Geologic age

Precambrian Z

Lithologic constituents

Major

Sedimentary > Clastic > SiltstoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Sedimentary > Clastic > MudstoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Sedimentary > Clastic > SandstoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Minor

Sedimentary > Clastic > ConglomerateGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Sedimentary > Carbonate > LimestoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Sedimentary > Carbonate > DolostoneGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Incidental

Igneous > Volcanic > Felsic-volcanic > RhyoliteGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Igneous > Volcanic > Mafic-volcanic > BasaltGS - Greenschist facies; AA - Low rank amphibolite facies; Protolith Q - Interbedded pelite and sandstone

Comments

GS - Greenschist facies; Protolith V - Basaltic volcanic rocks

References

Osberg, P.H., Hussey, A.M., and Boone, G.M., 1985, Bedrock geologic map of Maine: Maine Geological Survey, Dept. of Conserv., scale 1:500,000.

Rankin, D.W. (editor), Chiarenzelli, J.R., Drake, A.A., Jr., Goldsmith, Richard, Hall, L.M., Hinze, W.J., Isachsen, Y.W., Lidiak, E.G., McLelland, James, Mosher, Sharon, Ratcliffe, N.M., Secor, D.T., Jr. and Whitney, P.R., 1993, Proterozoic rocks east and southeast of the Grenville Front, IN Reed, J.C., Jr., and others, eds., Precambrian; conterminous U.S.: Geological Society of America, The Geology of North America, The Decade of North American Geology (DNAG), v. C-2, p. 335-461.

US Geological Survey, 2005, National Geologic Map Database, Geologic Names Lexicon "GEOLEX", http://ngmdb.usgs.gov/Geolex/.

NGMDB product

NGMDB product page for 16547

Counties

Hancock - Knox - Waldo