TY - RPRT TI - Bimodal Silurian and Lower Devonian volcanic rock assemblages in the Machias-Eastport area, Maine AU - Olcott Gates AU - R. H. Moench PY - 1981 DO - 10.3133/pp1184 UR - https://pubs.usgs.gov/publication/pp1184 ID - pp1184 ER -