Pigments of prehistoric rupestrian paintings from The Letreiro do Quinto Site, Pedro II, Piauí, Brazil

Química Nova

Lage, Maria Conceição Soares Meneses¹  Universidade Federal do Piauí, Teresina, Brasil¹  Cavalcante, Luis Carlos Duarte¹  Universidade Federal de Minas Gerais, Belo Horizonte, Brasil¹  Alves, Tetisuelma Leal¹  Brito, Maria Auxiliadora Mendes Liberal de¹  Fabris, José Domingos¹ 

关键词: rock art;    Mö;    ssbauer spectroscopy;    iron oxide.;   

DOI  :  10.1590/S0100-40422011000200002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The Letreiro do Quinto rock shelter is located in the rural area of the city of Pedro II, Piauí, Brazil. The sandstone walls of the shelter are covered with prehistoric rupestrian paintings, painted in patterns of yellow and light and dark red hues. The chemical-mineralogical characterization of the prehistoric pigments was made with energy dispersive spectroscopy, scanning electron microscopy, energy dispersive X-ray fluorescence and 57Fe transmission Mössbauer spectroscopy at 110 K. Results confirm the occurrence of hematite- and goethite-rich ochres and also that the pigment layers are indeed made of a mixture of clay minerals mixed with iron oxides.

【 授权许可】

Unknown