TY  - RPRT
TI  - Radiometric ages of the Fire Clay tonstein [Pennsylvanian (Upper Carboniferous), Westphalian, Duckmantian]: A comparison of U-Pb zircon single-crystal ages and 40Ar/39Ar sanidine single-crystal plateau ages
AU  - P.C. Lyons
AU  - T.E. Krogh
AU  - Y.Y. Kwok
AU  - D.W. Davis
AU  - W.F. Outerbridge
AU  - H. T. Evans
PY  - 2006
DO  - 10.1016/j.coal.2005.12.002
UR  - https://pubs.usgs.gov/publication/70028054
ID  - 70028054
ER  -