TY - RPRT TI - Improved 206Pb/238U microprobe geochronology by the monitoring of a trace-element-related matrix effect; SHRIMP, ID-TIMS, ELA-ICP-MS and oxygen isotope documentation for a series of zircon standards AU - L.P. Black AU - S.L. Kamo AU - C. M. Allen AU - D.W. Davis AU - J. N. Aleinikoff AU - J.W. Valley AU - R. Mundil AU - I.H. Campbell AU - R.J. Korsch AU - I.S. Williams AU - C. Foudoulis PY - 2004 DO - 10.1016/j.chemgeo.2004.01.003 UR - https://pubs.usgs.gov/publication/70027211 ID - 70027211 ER -