Silurian - Precambrian Z Eliot Formation (MESZe;0)

State	Maine
Name	Silurian - Precambrian Z Eliot Formation
Geologic age	Silurian - Precambrian Z
Original map label	SZe
Comments	Secondary unit description from USGS Geologic Names lexicon (ref. ME078): Used as Eliot Formation of Merrimack Group. Consists of gray to green phyllite, calcareous quartzite, quartz-mica schist, and well-bedded calc-silicate. GS - Greenschist facies Protolith B - calcareous pelite
Primary rock type	phyllite
Secondary rock type	quartzite
Other rock types	schist; calc-silicate rock
Lithologic constituents	Major Metamorphic > Metasedimentary > Metaclastic > QuartziteGS - Greenschist facies Protolith B - calcareous pelite Metamorphic > Metasedimentary > Metaclastic > Phyllite (Calcareous)GS - Greenschist facies Protolith B - calcareous pelite Minor Metamorphic > Schist > Mica-schistGS - Greenschist facies Protolith B - calcareous pelite Metamorphic > Metasedimentary > Calc-silicate-rockGS - Greenschist facies Protolith B - calcareous pelite
Map references	Digital bedrock data downloaded from Maine Office of GIS in September 2005 from http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock Bedrock units table (publication date 11/15/2002) downloaded from same site. Permission to redistribute these data granted by Dr. Robert Marvinney, State Geologist of Maine, in September 2006. [http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock]
Unit 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. USGS Geologic Names Lexicon (GEOLEX) [http://ngmdb.usgs.gov/Geolex/]
Geographic coverage	York