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

Author(s)

Shimizu, Viviane Kotani ^[1] ; Kahn, Henrique ^[2] ; Antoniassi, Juliana L. ^[1] ; Ulsen, Carina ^[2]

Affiliation

^[1] Univ Sao Paulo, Escola Politecn, Programa Posgrad Engn Mineral, Sao Paulo - Brazil

^[2] Univ Sao Paulo, Escola Politecn, Dept Engn Minas & Petr, Sao Paulo - Brazil

• Document type: Journal article
• Source: Rem: Revista Escola de Minas; v. 65, n. 4, p. 561-566, OCT-DEC 2012.
• Web of Science Citations: 2

Abstract

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. (AU)

• FAPESP's process: 09/54007-0 - Acquisition of complementary and support equipment for a scanning electron microscopy facility
• Grantee: Henrique Kahn
• Support Opportunities: Multi-user Equipment Program