RAMAN SPECTROSCOPY AND X-RAY FLUORESCENCE IN MOLECULAR ANALYSIS OF YELLOW BLOCKS FROM THE ARCHEOLOGICAL SITE PLAYA MILLER 7 (NORTHERN CHILE)

Journal of The Chilean Chemical Society

CÁRCAMO, J.J.¹  CLAVIJO, E¹  CAMPOS-VALLETTE, M¹  WALTER, P¹  GUTIERREZ, S²  SEPÚLVEDA, M² 

[1] Universidad de Chile, Santiago, Chile;Universidad de Tarapacá, Arica, Chile

关键词: Pigments;    X-;    rayfluorescence;    Raman spectroscopy;    Jarosite;    northern Chile.;   

DOI  :  10.4067/S0717-97072013000300008

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

Yellow blocks from the archaeologicalsite Playa Miller 7 (PLM7), on the coast of Atacama Desert in northern Chile,were analyzed by Raman spectroscopy and X-ray fluorescence (XRF) portable.Our results identify for the first time the use of K-jarosite and natrojarositein prehispanic times (approx. 2500 year BP). In search of a possible sourceof supply for this mineral hydrothermal origin, our surveys were focused onAndean geothermal areas with identification, so far, from a single source inthe region of Arica and Parinacota: Jurasi (JU), located at 4000 mamsl. Comparisonof the Raman spectra between samples archaeological and Jurasi, allow us toinfer that this hydrothermal source could be used as obtaining source of yellowpigment by prehispanic inhabitant of Formative period (3700-1500 years B.P.).

【 授权许可】

Unknown