Methodological criteria for auditing geochemical data sets aimed at selecting anomalous lead-zinc-silver areas using Geographical Information Systems

被引：3

作者：

Barreto-Neto, AA ^{[1
]}

da Silva, AB ^{[1
]}

机构：

[1] State Univ Campinas, Dept Geol & Nat Resources, Sao Paulo, Brazil

来源：

JOURNAL OF GEOCHEMICAL EXPLORATION | 2004年 / 84卷 / 02期

关键词：

accuracy index; interpolation; GIS; autocorrelation; continuous surfaces;

D O I：

10.1016/j.gexplo.2004.05.001

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 reliability of information derived from spatial data is described in order to establish criteria for auditing a spatial database. The evaluation of the accuracy of data batter was obtained from a series of indices such as omission and commission errors, Geary's C, Moran's I and Kappa index. The evaluation method to deduce the accuracy of geochemical data has to be used in the initial stage in geological projects using Geographic Information Systems (GIS). The results indicate that it is possible to get a better knowledge of the accuracy of the used data and its real capacity to be modeled in a GIS environment. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：93 / 101

页数：9