Devonian Seboomook Formation Temple Stream member (MEDst;0)

State	Maine
Name	Devonian Seboomook Formation Temple Stream member
Geologic age	Silurian-Devonian
Lithologic constituents	Major Metamorphic > Schist (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite. Minor Metamorphic > Metasedimentary > Metaclastic > Metasandstone (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite. Metamorphic > Metasedimentary > Metaclastic > Metaconglomerate (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite. Metamorphic > Metasedimentary > Metaclastic > Metasiltstone (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite.
Comments	Rank raised to formation of the Seboomook Group following usage of Pollock (1987). Occurs in central Maine trough in western ME and consists of cyclically interbedded pelitic schist and graded metasiltstone and metasandstone. Similar to Day Mountain and Carrabassett Formations, also of Seboomook Group, but contains smaller proportion of arenaceous rocks than Day Mountain and a larger proportion than Carrabassett. In areas of migmatitic gneiss, lower part may contain abundant remnants of underlying Hildreths Formation of Seboomook Group. (ME004) Unit description from USGS GEOLEX website (ME078). AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone.
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. Moench, R.H., Boone, G.M., Bothner, W.A., Boudette, E.L., Hatch, N.L., Jr., Hussey, A.M., III, Marvinney, R.G. and Aleinikoff, J.N., 1995, Geologic map of the Sherbrooke-Lewiston area, Maine, New Hampshire, and Vermont, United States, and Quebec, Canada: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1898-D, 56 p., 2 sheets, scale 1:250,000, Prepared in cooperation with the Maine Geological Survey and the New Hampshire Geological Survey. https://pubs.er.usgs.gov/publication/i1898D 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	Franklin - Oxford - Somerset

State

Name

Devonian Seboomook Formation Temple Stream member

Geologic age

Silurian-Devonian

Lithologic constituents

Major

Metamorphic > Schist (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite.

Minor

Metamorphic > Metasedimentary > Metaclastic > Metasandstone (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite.

Metamorphic > Metasedimentary > Metaclastic > Metaconglomerate (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite.

Metamorphic > Metasedimentary > Metaclastic > Metasiltstone (Greenschist, Amphibolite)Protolith C - Sulfidic/carbonaceous pelite; AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; AC - High rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith C - Sulfidic/carbonaceous pelite.

Comments

Rank raised to formation of the Seboomook Group following usage of Pollock (1987). Occurs in central Maine trough in western ME and consists of cyclically interbedded pelitic schist and graded metasiltstone and metasandstone. Similar to Day Mountain and Carrabassett Formations, also of Seboomook Group, but contains smaller proportion of arenaceous rocks than Day Mountain and a larger proportion than Carrabassett. In areas of migmatitic gneiss, lower part may contain abundant remnants of underlying Hildreths Formation of Seboomook Group. (ME004) Unit description from USGS GEOLEX website (ME078). AA - Low rank amphibolite facies; AB - Medium rank amphibolite facies; E - Epidote-amphibolite facies; GS - Greenschist facies; Protolith Q - Interbedded pelite and sandstone.

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.

Moench, R.H., Boone, G.M., Bothner, W.A., Boudette, E.L., Hatch, N.L., Jr., Hussey, A.M., III, Marvinney, R.G. and Aleinikoff, J.N., 1995, Geologic map of the Sherbrooke-Lewiston area, Maine, New Hampshire, and Vermont, United States, and Quebec, Canada: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1898-D, 56 p., 2 sheets, scale 1:250,000, Prepared in cooperation with the Maine Geological Survey and the New Hampshire Geological Survey.

https://pubs.er.usgs.gov/publication/i1898D

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

Franklin - Oxford - Somerset