TY - RPRT TI - U-Pb geochronologic constraints on the origin of a unique monazite- xenotime gneiss, Hudson Highlands, New York AU - John N. Aleinikoff AU - Richard I. Grauch PY - 1990 DO - 10.2475/ajs.290.5.522 UR - https://pubs.usgs.gov/publication/70015857 ID - 70015857 ER -