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- Reflexiones en torno a las características formales de los útiles líticos: una visión desde el análisis traceológicoPublication . Gibaja Bao, JuanDesde los inicios, los estudiosos de la Prehistoria han hecho esfuerzos considerables por caracterizar los objetos arqueológicos que aparecían en los yacimientos. La detallada descripción formal de la industria lítica, de la cerámica, de los útiles de metal, etc., han llenado páginas y páginas de artículos y libros. Unas descripciones que, sin embargo, no han cesado en la actualidad. No hay trabajo que se precie que no dedique una parte importante de su contenido a dar a conocer cómo es el registro arqueológico que se está tratando. Aunque la clasificación es un modo de ordenar una realidad para que pueda ser reconocida por el resto de arqueólogos, las propuestas tipológicas han tenido y siguen teniendo a menudo una finalidad prioritaria: proponer al lector los elementos de base a partir de los cuales encajonar los restos arqueológicos a unas culturas y cronologías preestablecidas.
- The Mesolithic-Neolithic transition in southern IberiaPublication . Cortes Sanchez, Miguel; Jiménez-Espejo, Francisco J.; Simon Vallejo, Maria D.; Gibaja Bao, Juan; Carvalho, António Faustino; Martinez-Ruiz, Francisca; Rodrigo Gamiz, Marta; Flores, Jose-Abel; Paytan, Adina; Lopez Saez, Jose A.; Pena-Chocarro, Leonor; Carrion, Jose S.; Morales Muniz, Arturo; Rosello Izquierdo, Eufrasia; Riquelme Cantal, Jose A.; Dean, Rebecca M.; Salgueiro, Emilia; Martinez Sanchez, Rafael M.; De la Rubia de Gracia, Juan J.; Lozano Francisco, Maria C.; Vera Pelaez, Jose L.; Llorente Rodriguez, Laura; Bicho, Nuno Gonçalo Viana Pereira FerreiraNew data and a review of historiographic information from Neolithic sites of the Malaga and Algarve coasts (southern Iberian Peninsula) and from the Maghreb (North Africa) reveal the existence of a Neolithic settlement at least from 7.5 cal ka BP. The agricultural and pastoralist food producing economy of that population rapidly replaced the coastal economies of the Mesolithic populations. The timing of this population and economic turnover coincided with major changes in the continental and marine ecosystems, including upwelling intensity, sea-level changes and increased aridity in the Sahara and along the Iberian coast. These changes likely impacted the subsistence strategies of the Mesolithic populations along the Iberian seascapes and resulted in abandonments manifested as sedimentary hiatuses in some areas during the Mesolithic-Neolithic transition. The rapid expansion and area of dispersal of the early Neolithic traits suggest the use of marine technology. Different evidences for a Maghrebian origin for the first colonists have been summarized. The recognition of an early North-African Neolithic influence in Southern Iberia and the Maghreb is vital for understanding the appearance and development of the Neolithic in Western Europe. Our review suggests links between climate change, resource allocation, and population turnover. (C) 2011 University of Washington. Published by Elsevier Inc. All rights reserved.
- Technology, use-wear and raw material sourcing analysis of a c. 7500 cal BP lithic assemblage from Cabeco da Amoreira shellmidden (Muge, Portugal)Publication . Paixão, Eduardo; Marreiros, Joao; Pereira, Telmo; Gibaja Bao, Juan; Cascalheira, João; Bicho, NunoThe onset of the Holocene is marked by new human ecological adaptations that are associated with the origins of the Mesolithic in the Atlantic Iberia coast. During the Mesolithic, shellmidden deposits become one of the most relevant and interesting prehistoric archeological contexts, interpreted has the result of intensive human ecological exploitation, and marked by new settlement and mobility patterns, and subsistence strategies. Based on techno-typological patterns and artifact density, each Muge shellmidden has been traditionally linked to a single and specific functionality, possibly reflecting the presence of different stylistic/ethnic groups in the territory. Therefore, characterizing settlement, mobility, site function, and technological patterns in each shellmidden is fundamental to understand the archeological record and answer major questions related to human ecological behavior during the onset of the new Holocene climatic setting. This paper presents new data on the Mesolithic from the Tagus valley, using the case study of the lithic assemblage from layer 2 of Cabeco da Amoreira shellmidden. From our interpretation, by combining lithic raw material characterization and sourcing, techno-typological and use-wear analysis, this study aims to represent an important step on understanding resource exploitation, technological systems and site function, in order to address intra and inter-site variability. In what concerns lithic raw materials, they can be found in the Pleistocene gravels that compose the upper section of the Cenozoic deposits of the River Tagus, including those underneath the site. Nevertheless, the geochemical results suggest that the chert used has correspondence with local, regional, and exogenous areas. In sum, by characterizing the Cabeco da Amoreira shellmidden lithic assemblage, results and data aim to contribute to the discussion and new interpretations on shellmiddens' function and settlement occupation patterns during the Mesolithic.
- The necropolis of Can Gambus-1 (Sabadell, Barcelona). New data on the funerary practices during the Middle Neolithic in the northeast of the Iberian PeninsulaPublication . Roig, Jordi; Manel Coll, Joan; Gibaja Bao, Juan; Chambon, Philippe; Villar, Vangelis; Ruiz, Jordi; Terradas, Xavier; Eulalia Subira, MariaIn this paper we deal with the Neolithic burials at the site of Can Gambus-1, belonging of the so called Cultura de los Sepulcros de Fosa" (from end of the fifth to the beginning of the fourth millennia cal BC). The main aim is to present new data on the procedures of excavation of the pits, the materials used in the covering of the graves and the treatment given to some of the corpses. The detailed archaeological reconstruction of the funerary behaviour has been possible thanks to the exceptional state of preservation of the graves, the rigorous process of archaeological excavation, the anthropological study carried out, as well as to the achievement of a detailed taxonomic study of all the available evidences. Likewise, the grave goods recovered in the burials are presented. Their quantity and quality is outstanding compared with other similar funerary contexts. Probably this fact is due to the exclusive presence of adult individuals among the buried ones.