TY - RPRT TI - Geological significance of lead-alpha and isotopic age determinations of "alkalic" rocks of New England AU - Priestley Toulmin PY - 1961 DO - 10.1130/0016-7606(1961)72[775:gsolai]2.0.co;2 UR - https://pubs.usgs.gov/publication/70220638 ID - 70220638 ER -