Materias primas líticas de la cuenca del río Uruguay. Aportes y nuevos hallazgos para la arqueología regional y la cuenca Paraná-Etendeka
; Block, Diego Francisco Otros responsables
Fecha
11/2024
Editorial
Universidad Nacional del Centro de la Provincia de Buenos Aires
Revista
InterSecciones en Antropología
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ISSN
eISSN
1850-373X
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Español
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Resumen
Las materias primas líticas presentes en la cuenca media del río Uruguay son frecuentemente mencionadas en la arqueología del noreste argentino y zonas vecinas debido a la existencia de numerosos afloramientos primarios y depósitos secundarios de rocas ígneas, criptocristalinas, metamórficas y sedimentarias óptimas para la talla. Con el objetivo de aportar a la determinación y clasificación de los recursos geológicos seleccionados por las poblaciones prehispánicas para la industria lítica, se presentarán los resultados de la caracterización macroscópica y petrográfica de las litologías representadas en un contexto arqueológico ubicado en la margen occidental de la cuenca media del río Uruguay, en el departamento de Monte Caseros (provincia de Corrientes). Además de identificar las rocas más comúnmente empleadas, se informa sobre la existencia y utilización de una materia prima que no había sido previamente documentada en nuestra área de estudio: tobas vítreas básicas silicificadas. Se detallan las características que han permitido su clasificación y se debate acerca de su inclusión en la base regional de recursos líticos. Asimismo, los resultados alcanzados trascienden la escala arqueológica de análisis y constituyen un aporte al conocimiento geológico respecto de la presencia de afloramientos de rocas piroclásticas en la cuenca Paraná-Etendeka.
The lithic raw materials present in the middle basin of the Uruguay River are frequently mentioned in the archaeology of northeastern Argentina and neighboring areas due to the abundance of primary outcrops and secondary deposits of igneous, cryptocrystalline, metamorphic, and sedimentary rocks that are ideal for lithic production. With the aim of contributing to the determination and classification of the geological resources selected by pre-Hispanic populations for lithic industries, the results of macroscopic and petrographic characterization of the lithologies represented in an archaeological context located on the western bank of the middle basin of the Uruguay River, in the department of Monte Caseros (Corrientes Province), will be presented. In addition to identifying the most commonly used rocks, the presence and use of a raw material that has not been previously documented in the study area, silicified basic vitreous tuffs, are reported. The characteristics that have allowed their classification are described, and their inclusion in the regional resource base is debated. Furthermore, the achieved results go beyond the archaeological scale of analysis and contribute to geological knowledge regarding the presence of outcrops of pyroclastic rocks in the Paraná-Etendeka basin.
The lithic raw materials present in the middle basin of the Uruguay River are frequently mentioned in the archaeology of northeastern Argentina and neighboring areas due to the abundance of primary outcrops and secondary deposits of igneous, cryptocrystalline, metamorphic, and sedimentary rocks that are ideal for lithic production. With the aim of contributing to the determination and classification of the geological resources selected by pre-Hispanic populations for lithic industries, the results of macroscopic and petrographic characterization of the lithologies represented in an archaeological context located on the western bank of the middle basin of the Uruguay River, in the department of Monte Caseros (Corrientes Province), will be presented. In addition to identifying the most commonly used rocks, the presence and use of a raw material that has not been previously documented in the study area, silicified basic vitreous tuffs, are reported. The characteristics that have allowed their classification are described, and their inclusion in the regional resource base is debated. Furthermore, the achieved results go beyond the archaeological scale of analysis and contribute to geological knowledge regarding the presence of outcrops of pyroclastic rocks in the Paraná-Etendeka basin.
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