Verde epidota: pintando el pasado en Cerro de Oro, valle de Cañete, Perú. Un análisis químico y mineralógico del pigmento cerámico verde amarillento
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2020-04-29
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Pontificia Universidad Católica del Perú. Fondo Editorial
Resumen
El siguiente estudio propone identificar uno de los pigmentos más característicos del valle de Cañete durante el período Horizonte Medio, específicamente, el color verde amarillento observado en el repertorio cerámico de Cerro de Oro. Definir el origen y utilización de este pigmento facilita el entendimiento de la obtención de materia prima y cadena operativa en la elaboración de una de las cerámicas que definen a este desarrollo regional. Para este análisis se han utilizado como muestras, cerámicas con pigmento verdoso y muestras de rocas con restos de un mineral verdoso, halladas ambas en el sitio arqueológico de Cerro de Oro. Para definir la composición química y mineralógica, se han llevado a cabo análisis de FRX, Raman y DRX. A partir de estos análisis, se ha podido determinar que el mineral encontrado es epidota y su comportamiento a altas temperaturas parece indicar que este mineral podría estar relacionado con el pigmento encontrado en las cerámicas del sitio.
The following study proposes to analyze one of the most characteristic pigments of the Cañete Valley during the Middle Horizon period, specifically, the green-yellowish color in the Cerro de Oro ceramic repertoire. Defining the origin and use of this pigment allows for a better understanding of the access to raw materials and the operational chain in the manufacture of one of the ceramics that define this regional development. Ceramic fragments with the greenish pigment and epidote samples, both found at the Cerro de Oro archaeological site, have been used as samples for this study. To define the chemical and mineralogical composition of the pigment, XRF, Raman and XRD analyses were carried out. These analyses have allowed us to identify epidote as the colored mineral, and its behavior at high temperatures suggests that this mineral could be related to the pigment found in the ceramics of the site.
The following study proposes to analyze one of the most characteristic pigments of the Cañete Valley during the Middle Horizon period, specifically, the green-yellowish color in the Cerro de Oro ceramic repertoire. Defining the origin and use of this pigment allows for a better understanding of the access to raw materials and the operational chain in the manufacture of one of the ceramics that define this regional development. Ceramic fragments with the greenish pigment and epidote samples, both found at the Cerro de Oro archaeological site, have been used as samples for this study. To define the chemical and mineralogical composition of the pigment, XRF, Raman and XRD analyses were carried out. These analyses have allowed us to identify epidote as the colored mineral, and its behavior at high temperatures suggests that this mineral could be related to the pigment found in the ceramics of the site.
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Cerro de Oro, Cañete, Perú, Andes, Horizonte Medio, Pigmentos, Epidota, FRX, Raman, DRX
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