As part of the "Botanical Archaeological Project Ayacucho-Huanta" in central Peru, excavations at Jaywamachay rockshelter were performed in 1969-1970. To reevaluate the rockshelter's oldest human occupations, remains from its lower levels (layers J2 and J3) are currently under study. Based on new radiocarbon dates and technological/morphological observations made of tools, we confirm that Jaywamachay is one of the few dated sites with evidence of hunter-gatherers using fishtail points in highland Peru during the Pleistocene-Holocene transition.
Richard "Scotty" MacNeish, between 1969 and 1972, led an international team of archaeologists on the Ayacucho Archaeological-Botanical-Project in the south-central highlands of Peru. Among several important archaeological sites identified there, MacNeish and his team excavated the Puente rock shelter. As a part of an ongoing research program aimed to reassess the lithic remains from this endeavor, we re-studied a sample by making diverse kinds of morpho-technological analysis. The remains studied come from the lower strata at Puente, where a radiocarbon assay from layer XIIA yielded a calibrated date of 10,190 to 9555 years BP that the present study identifies, various activities were carried out at the site, mainly related to manufacturing and repairing unifacial and bifacial tools. The artifacts studied are comparable with the lithic remains found in other sites located in the Ayacucho Basin, and with other early evidence from other parts of the south-central Andes.
Las investigaciones sobre la morfotecnología y tipología lítica en la sierra sur del Perú, no han sido aún elaboradas, contando tan solo con descripciones superficiales. El presente trabajo expone los resultados de la aplicación del registro morfotecnológico efectuados a la colección lítica de Arcata. Los análisis nos han permitido, identificar puntas bifaciales, preformas de puntas, raspadores y otros artefactos de piedra. Estos han sido asociados desde el punto de vista morfotecnológico con otros yacimientos arqueológicos.
El análisis del material lítico arqueológico del complejo Ayacucho de la cueva de Pikimachay correspondiente al Pleistoceno Final, ha permitido la identificación tipológica definida como desechos de talla, conformada i.e. núcleos desbastados, lascas primarias y secundarias y fragmentos de lascas obtenidas muy probable por percusión dura y/o blanda. Este trabajo presenta los resultados de la aplicación de una ficha de registro métrico, efectuado bajo la metodología de “Cadena Operativa”, con el objetivo de poder identificar medidas promedio y posibles orden de secuencia de talla lítica. Sin embargo, aún sabiendo que contamos con una evidencia mínima cualitativa de material lítico arqueológico procedente del Complejo Ayacucho, el resultado del análisis preliminar ha permitido al menos asociarlas, con tres momentos de talla lítica.
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