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.

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

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

U.S. Geological Survey

U.S. Department of the Interior

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

Citation Information