PB-ISOTOPIC EVIDENCE FOR U-TH-PB BEHAVIOR IN A PROGRADE AMPHIBOLITE TO GRANULITE FACIES TRANSITION FROM THE LEWISIAN COMPLEX OF NORTH-WEST SCOTLAND - IMPLICATION FOR PB-PB DATING - COMMENT

被引：2
|
作者：
ZHENG, YF
机构：
[1] Geochemisches Institut, Universität Göttingen, 3400 Göttingen
来源：
GEOCHIMICA ET COSMOCHIMICA ACTA | 1990年 / 54卷 / 06期
关键词：
D O I：
10.1016/0016-7037(90)90411-D
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The application of Pb-Pb isochron dating is subject to uncertainties not only from the degree of Pb isotope homogenization during a geological event being dated, but also from the secondary disturbance of unknown ages and the presence of trace uranium in the investigated samples. A three-dimensional Pb-Pb isochron plane method can probably throw light on the Pb isotope dating of whole-rock samples if concentrations of trace uranium and lead can be accurately determined. © 1990.
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页码：1835 / 1838
页数：4
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