RESUMENLos estudios referentes a la gestión de los recursos líticos -especialmente el sílex-por parte de los grupos prehistóricos en las dos vertientes del Pirineo occidental han aumentado de manera considerable en las últimas décadas. En este trabajo, pretendemos realizar una aproximación a la movilidad de los grupos superopaleolíticos, mediante los Sistemas de Información Geográfica (SIG). Estos nos permiten relacionar espacialmente los afloramientos de sílex y los restos líticos encontrados en los yacimientos arqueológicos. Para ello, hemos construido, a través de los Cost Distance Analysis, una serie de mapas que permiten detectar las dinámicas de expansión de cada uno de afloramientos, así como los patrones de aprovisionamiento de cada yacimiento. Adicionalmente, hemos relacionado los valores numéricos obtenidos del análisis espacial con la cantidad de sílex encontrado en cada nivel arqueológico a partir de estadística descriptiva y la aplicación de la lógica difusa. De esta forma hemos podido revisar los conceptos de autoctonía y aloctonía, así como plantear modelos generales de aprovisionamiento y distribución de sílex en la región. LABURPENAMendebaldeko Pirinioen bi isurialdeetan historiaurreko taldeek baliabide litikoen -batez ere silexa-inguruan eginiko kudeaketari buruzko azterlanak asko ugaritu dira azken hamarkadetan. Lan honetan, hurbiltze bat egin nahi diogu talde superopaleolitikoen mugikortasunari, Informazio Geografikoko Sistemen (GIS) bidez. Hala, espazioa kontuan hartuta lotu ditzakegu aztarnategi arkeologikoetan aurkitutako silexaren eta hondakin litikoen azaleratzeak. Horretarako, Cost Distance Analysis direlakoen bidez, zenbait mapa eraiki ditugu eta horiei esker, azaleratze bakoitzaren hedatze-dinamikak detektatu ditugu. Aztarnategi bakoitzaren hornitze-ereduak ere eraiki ditugu. Horrez gain, azterketa espazialaren emaitza gisa eskuratu ditugun zenbakizko balioak maila arkeologiko bakoitzean aurkitutako silex kantitatearekin lotu ditugu deskribapenezko estatistikatik abiatuta eta logika lausoa aplikatuta. Hala, autoktonia eta aloktonia kontzeptuak berraztertu ahal izan ditugu eta aipatutako eremuko hornitze-eredu orokorrak eta silexaren banaketa planteatu ditugu.

Studies on lithic resource management-mainly flint-by prehistoric groups south of the western Pyrenees have significantly increased during the past decades. These studies usually focus on identifying outcrops and characterising the different varieties found at archaeological sites. However, the understanding of mobility and territorial management patterns based on raw materials is still very limited and has only been tackled in terms of lineal distance. This paper proposes a methodological approach for the territorial analysis of flint distribution with the three following aims: 1) to determine the expansion ranges of each variety of flint from its outcrop; 2) to spatially relate these outcrops with archaeological sites; and 3) to improve our knowledge on the catchment strategies of Upper Palaeolithic groups. The methodological tool chosen to fulfil these objectives is the Geographic Information System (GIS), because it allows to relate spatially the flint outcrops and flint varieties identified at archaeological sites based on: 1) isocost maps showing the cost of expansion for each variety of flint across the territory built on topography; 2) the quantification of the cost of expansion using Cost Units (CU); and 3) the relationship between the percentage of each variety of flint at each archaeological site and the cost of accessing its outcrop. In order to demonstrate that cost is a powerful way to relate spatially raw material distribution and archaeological sites with outcrops, we contrasted its results with the ones obtained by more classic means (Euclidean distance and distance across the most optimal route). It was therefore shown that cost is better at explaining the spatial relationship between flint outcrops and archaeological sites, which, in turn, provides new data on catchment strategies, mobility patterns and territorial management of Upper Palaeolithic groups.

Abstract:The prehistoric Treviño flint mine complex is located in the Sierra de Araico-Cucho (Berantevilla, Alava -Condado de Treviño, Burgos), inside the lacustrine-palustrine Cenozoic (Aquitanian, Miocene) materials of the South-Pyrenean syncline of the Basque-Cantabrian Basin. It is a landscape unit constituted by a set of carbonated layers with abundant nodular and stratiform silicifications. The extraction mining works (often referred to as 'tailing') are usually identified as dumps or trenches, subtly visible and associated with archaeological materials.An archaeological excavation was carried out in one potential mining structure (dump or pit) that was detected by LiDAR (Light Detection and Ranging) in the mountain pass of "Pozarrate" near the villages of Grandival and Araico (Treviño, Burgos). In this work we present the results of the excavation of the last two years. The existence of a Neolithic mining dump (the tailings) with a chronology ca. 5000 cal. BC was confirmed. The base rock level with nodular flint was reached and the impressions of the exploited nodules have been identified. As well, the extraction front which reaches about 4.0-5.0 metres in height was delimited. Thousands of lithic remains associated with the extraction and the initial processing (shaping) of flint were collected, as along with mining tools. We have found and described three types of mining structures: trenches, linear dumps and crescent-shaped (or "half-moon-shaped") dumps.This site is one of the few prehistoric flint mines dated in the Iberian Peninsula. Recent investigations in the Cantabrian Mountains and Western Pyrenees indicate that the circulation and use of Treviño flint during Prehistory reached many Holocene and Pleistocene archaeological sites, located hundreds of kilometres away from the outcrops.Keywords: Neolithic; mines; raw materials; flint; mineral resources; prehistory; Treviño; Western Pyrenees Resumen:El complejo prehistórico minero de sílex de Treviño se sitúa en la Sierra de Araico-Cucho (Berantevilla, Alava -Condado de Treviño, Burgos), en materiales lacustres-palustres del Cenozoico (Aquitaniense, Mioceno) en el Sinclinal Surpirenaico de la Cuenca Vasco-Cantábrica. Se trata de una unidad constituida por un conjunto de niveles carbonatados con presencia de abundantes silicificaciones nodulares y estratiformes. Habitualmente se identifican labores mineras de extracción como escombreras o zanjas sutilmente visibles y asociadas a materiales arqueológicos. Se ha llevado a cabo una excavación arqueológica en una estructura minera potencial (escombrera o pozo) que fue detectada por LiDAR (Light Detection and Ranging) en el collado de Pozarrate cerca de los pueblos de Grandival y Araico (Treviño, Burgos). En este trabajo presentamos los resultados de los dos últimos años de excavación. Se ha confirmado la existencia de una escombrera neolítica de unos 5000 AC años de antigüedad. Se ha alcanzado el nivel de base con sílex nodular y las impresiones de los nódulos explotados han sido identificados. También se...

The advent of the Internet of Things (IoT) has led to embedding wireless transceivers into a wide range of devices, in order to implement context-aware scenarios, in which a massive amount of transceivers is foreseen. In this framework, cost-effective electronic and Radio Frequency (RF) front-end integration is desirable, in order to enable straightforward inclusion of communication capabilities within objects and devices in general. In this work, flexible antenna prototypes, based on screen-printing techniques, with conductive inks on flexible low-cost plastic substrates is proposed. Different parameters such as substrate/ink characteristics are considered, as well as variations in fabrication process or substrate angular deflection in device performance. Simulation and measurement results are presented, as well as system validation results in a real test environment in wireless sensor network communications. The results show the feasibility of using screen-printing antenna elements on flexible low-cost substrates, which can be embedded in a wide array of IoT scenarios.

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