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Merrimack Group, Eliot Formation

Merrimack Group, Eliot Formation - Gray to green phyllite, calcareous quartzite, quartz-mica schist, and well-bedded calc-silicate.
StateNew Hampshire
NameMerrimack Group, Eliot Formation
Geologic ageOrdovician? - Silurian?
Original map labelSOe
CommentsPart of the Nashoba-Casco-Miramichi Terrane (Merrimack Trough).
Primary rock typephyllite
Secondary rock typequartzite
Other rock typesmica schist; calc-silicate rock
Lithologic constituents
Map references
Bennett, D. S, , Wittkop, C.A., and Dicken, C.L., 2006 , Bedrock Geologic Map of New Hampshire - A Digital Representation of the Lyons and others 1997 map and ancillary files: U.S. Geological Survey Data Series 215, scale 1:250,000, CD-ROM.
Unit references
Lyons, J.B., Bothner, W.A., Moench, R.H., and Thompson, J.B., Jr., 1997, Bedrock Geologic Map of New Hampshire: Reston, VA, U.S. Geological Survey Special Map, 1:250,000, 2 sheets.
Geographic coverageRockingham - Strafford

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