ÂN ENAMPLE TO THE EVALUATION OF GEOCHEMICAL DATA BY MULTIVARIATE GEOSTATISTICAL ANALYSES: DÎVRÎĞÎ REGION IRON DEPOSitS, CENTRAL ANATOLIA

Abstract

Geostatistical analyses were carried out on 160 rock samplesfor 24 elements from the Div­ riği iron ore region. The samples were initiaîly treated as one population. Thereafter the indivi­ dual rock types were divided into several groups and geostatistically analysed. The geostatisti­ cal methods are described shortly for T'nivariate and Bivariate analyses and, most importantly, the multivariate methods such as Discriminant-, Cluster-, and Factor analyses. The results of the geostatistical analyses yield a division into different rock groups (Discri- minant analysis) and several elementassociation (Cluster-and Factor analyses), which reflect the different rock types. In the individual groups the elementassociation telis ;ore about the geological processes e.g. serpenîinization and hydrothermal aîteration. The difference between Cluster- and Factor analyses is seen in the Faclor analysis, which is a little more differentiated, enahling a more subtIe interpretation of the possible geological environment. The interpretation of the elementassociation suggests that the iron cres are closely associ- ated with mafic to ultramafic rocks, their serpenîinization and aîso later haydrothermal events.

Keywords

• ÂN ENAMPLE
• GEOCHEMICAL
• IRON DEPOSiS

References

1. Ankara Üniversitesi – Communications Faculty of Sciences University of Ankara Series C Biology Dergisi