TY - RPRT TI - Monazite and xenotime petrochronologic constraints on four Proterozoic tectonic episodes and ca. 1705 Ma age of the Uncompahgre Formation, southwestern Colorado, USA AU - Ian W. Hillenbrand AU - Michael L. Williams AU - Karl E. Karlstrom AU - Amy K. Gilmer AU - Heather A. Lowers AU - Michael J. Jercinovic AU - Kaitlyn Suarez AU - Amanda Kate Souders PY - 2023 DO - 10.1130/ges02631.1 UR - https://pubs.usgs.gov/publication/70246674 ID - 70246674 ER -