Browsing by Author "Gibaja, Juan F."
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- Conociendo las foicinhas líticas del poblado prehistórico de Leceia (Oeiras, Portugal)Publication . Cardoso, João Luis; Gibaja, Juan F.Bifacial tools made of flint are some of the most representative elements of the Late Neolithic-Chalcolithic in much of the western Iberia. In Portugal these pieces, traditionally called foicinhas, are currently known as "foliaceous blades". Many sites of this period are fortified settlements, Leceia being one of the best-known examples. Surprisingly, in spite of their abundance the lithic instruments in general, and foliaceous blades in particular, in sites of this period have not been studied in detail. Here we address the raw material, technology, morphology, and function of these tools. This allows us to evaluate the supply areas, the possible social relations established with other groups (based on the origin of certain types of flint), the technological capacity of the inhabitants of Leceia, and the function of some of these blades.
- El final de un camino. Las primeras hoces neolíticas documentadas en yacimientos portuguesesPublication . Gibaja, Juan F.; Cardoso, João Luis; Martins, Filipe; Faustino de Carvalho, António ManuelPocas son las evidencias de agricultura vinculadas a las primeras ocupaciones neolíticas de Portugal. De hecho, la escasa conservación de restos carpológicos no ha facilitado conocer la realidad de las prácticas agrícolas en relación con las especies explotadas. En este contexto, han surgido dudas sobre el papel que esta actividad tenía entre las primeras comunidades agricultoras y pastoras. En este artículo hemos abordado el estudio de cinco asentamientos del Neolítico Antiguo con el objetivo de documentar la existencia o no de útiles tallados empleados como hoces. Los resultados confirman el uso de estos instrumentos durante este periodo y su similitud con los hallados en otros yacimientos peninsulares.
- NeoNet Atlantic. Radiocarbon dates for the late mesolithic/early neolithic transition in the Southern European Atlantic CoastPublication . Huet, Thomas; Basílio, Ana Catarina; Faustino de Carvalho, António Manuel; Cubas, Miriam; Gibaja, Juan F.; López-Romero, Elías; Oms, F. Xavier; Mazzucco, NiccolòNeoNet Atlantic dataset complements the NeoNet Mediterranean dataset by providing new curated radiocarbon dates for the study of the pioneer farming front (i.e. Neolithisation, ca. 7500 to 3500 cal BC) in the Southern European Atlantic Coast river basin (Portugal, Western Spain, Southwestern France). The complete dataset is formed by the id00164_doc_elencoc14.tsv file, a data frame with tab -separated values, and a related dataframe: id00164_doc_thesaurus.tsv. The dataset contains 1,143 radiocarbon dates from 254 archaeological sites and 817 different archaeological contexts (stratigraphic units, structures, negative features, hearths, etc.) informed by 233 bibliographical references. As for the NeoNet Mediterranean dataset, particular attention has been paid to homogenisation of the laboratory code, the archaeological context, and the references, in order to facilitate further data extractions. Indeed, the dataset is linked to an open source R Shiny interactive web app (NeoNet app), a series of functions hosted on GitHub, and a getter function (R package c14bazAAr, R function get_c14data("neonetatl").