TY - RPRT TI - SHRIMP U-Pb and 40Ar/39Ar age constraints for relating plutonism and mineralization in the Boulder batholith region, Montana AU - Karen Lund AU - John N. Aleinikoff AU - Michael J. Kunk AU - Daniel M. Unruh AU - G. D. Zeihen AU - W. C. Hodges AU - Edward A. du Bray AU - J. Michael O’Neill PY - 2002 DO - 10.2113/97.2.241 UR - https://pubs.usgs.gov/publication/70024823 ID - 70024823 ER -