Copper ore type definition from Sossego Mine using X-ray diffraction and cluster analysis technique

Rem: Revista Escola de Minas

Viviane Kotani Shimizu²  Henrique Kahn¹  Juliana L. Antoniassi¹  Carina Ulsen¹ 

[1] ,Escola Politécnica da USP Programa de Pós-Graduação em Engenharia Mineral

关键词: Cluster analysis;    X-ray diffraction;    copper ore;    Sossego Mine;    Análise por agrupamento;    difração de raios X;    minério de cobre;    Mina do Sossego;   

DOI  :  10.1590/S0370-44672012000400019

来源: SciELO

【 摘 要 】

This paper presents the classification of 110 copper ore samples from Sossego Mine, based on X-ray diffraction and cluster analysis. The comparison based on the position and the intensity of the diffracted peaks allowed the distinction of seven ore types, whose differences refer to the proportion of major minerals: quartz, feldspar, actinolite, iron oxides, mica and chlorite. There was a strong correlation between the grouping and the location of the samples in Sequeirinho and Sossego orebodies. This relationship is due to different types and intensities of hydrothermal alteration prevailing in each body, which reflect the mineralogical composition and thus the X-ray diffractograms of samples.

【 授权许可】

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