共 2 条
[1]
HARRIS DP, 1987, INVESTIGATION QUANTI
[2]
PAN GC, 1990, UNPUB MATH GEOL
QUANTITATIVE-ANALYSIS OF ANOMALOUS SOURCES AND GEOCHEMICAL SIGNATURES IN THE WALKER-LAKE QUADRANGLE OF NEVADA AND CALIFORNIA
被引：6
作者：
PAN, GC
HARRIS, DP
机构：
[1] Department of Mining and Geological Engineering, University of Arizona, Tucson
关键词：
D O I：
10.1016/0375-6742(90)90116-R
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：
A new quantitative transportation model for geochemical elements in stream sediment samples is proposed and used to estimate mineral sources of anomalous concentrations and to adjust both location and concentration for the transportation effect. Subsequent to transportation analysis, data on 14 geochemical elements in the Walker Lake quadrangle are analyzed for geochemical signatures for three types of mineralization environments: epithermal gold-silver deposits, porphyry-skarn copper deposits, and a mixed occurrence. Geochemical signatures are analyzed using a multidimensional scaling method referred to as the pijk model, which is a factor-like model generalized to include nonlinear associations, as well as linear, among triple variables (elements). A result of this analysis is that Pb is the best indicator for epithermal gold-silver mineralization, Mo and Zn for mixed mineralization, and Cu for porphyry-skarn mineralization. © 1990.
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页码：299 / 321
页数：23
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