|Name||Devonian Heald Mountain Rhyolite, dark tuff member|
Igneous > Volcanic > Felsic-volcanic > RhyoliteGS - Greenschist facies
|Comments||Rocks previously mapped as Heald Mountain Rhyolite of Moose River Group by Boucot and Heath (1969) are here reassigned to Kineo Volcanic Member of Tomhegan Formation of Moose River Group. (ME004) Unit description from USGS GEOLEX website (ME078). GS - Greenschist facies.|
|Stratigraphic units||Kineo Volcanic Member of Tomhegan Formation of Moose River Group|
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.
US Geological Survey, 2005, National Geologic Map Database, Geologic Names Lexicon "GEOLEX", http://ngmdb.usgs.gov/Geolex/.