TY - RPRT TI - Conventional U-Pb dating versus SHRIMP of the Santa Barbara Granite Massif, Rondonia, Brazil AU - I. Sparrenberger AU - Jorge S. Bettencourt AU - R. M. Tosdal AU - J. L. Wooden PY - 2002 UR - https://pubs.usgs.gov/publication/70023942 ID - 70023942 ER -