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Effects of weathering on the UPb ages of zircon from the Morton Gneiss, Minnesota

January 1, 1966

Weathering has caused large losses of lead from the zircon in the residual clay derived from the Morton Gneiss of southwestern Minnesota, drastically reducing the 206Pb/238U and the 207Pb/235U ages. The 207Pb/206Pb age probably has not been significantly affected. Loss of lead by leaching during weathering has not been adequately considered in explanation of discordant ages of zircon.

Citation Information

Publication Year 1966
Title Effects of weathering on the UPb ages of zircon from the Morton Gneiss, Minnesota
DOI 10.1016/0012-821X(66)90028-8
Authors T. W. Stern, S. S. Goldich, M. F. Newell
Publication Type Article
Publication Subtype Journal Article
Series Title Earth and Planetary Science Letters
Index ID 70010759
Record Source USGS Publications Warehouse