La secuencia malacológica de la cueva de Nerja (Málaga): excavaciones de 1982

[Resumen] Este trabajo es un avance al estudio de la malaco fauna de los niveles arqueológicos del Vestfbulo de la Cueva de Nerja (Málaga). En el describimos la estratigraffa obtenida en el sondeo efectuado en la última campaña de excavaciones de 1982 en el Vestíbulo, y estudiamos los diferentes moluscos que aparecieron, agrupándolos en cuatro conjuntos, entre los que destaca el bromatológico. Observamos grandes acumulaciones de conchas que llegan a formar auténticas capas bioclásticas, conchas que fueron utiIizadas por los habitantes de la Cueva de Nerja para su alimentación. Las culturas que aparecen representadas corresponden al Paleolftico Superior, Epipaleol1tico y Neolítico Inicial, por lo que estos moluscos están situados en el Pleistoceno Final y Holoceno Inicial. A partir de los datos obtenidos en anteriores excavaciones en otra sala de la Cueva, y de los que exponemos aquí, se puede observar una serie de variaciones ecológicas y climáticas muy significativas, fundamentalmente en la transición Pleistoceno-Holoceno.[Resumé] Dans ce travail nous présentons les premieres rèsuIta ts de l' etude de lamaIacofaune du VestibuIo de la Grotte de Nerja (Málaga). Nous y décrirons la stratigraphie obtenue dans le forage réalisé dans le Vestibulo au cours de la campagne de fouilles enteprise en 1982. Aussi nous y étudions es différents mol usques apparus et les groupant en quatre ensembles, parmi lesquels il fant signaler l'eQ. semble bromatologique. N ous avons observé de grandes accumulations de coqui Ilages qui peurent former une véritable couche bioclastique. Ces coquilles ont été employ"'ees par les habitants de la Grotte pour leur alimentation. Les cultures qui y sont représentées correspondent au Paléolithique Supérieur, Epipaléolithique et Néolithique Initial, raison par laqueLle ces molusques se situeraient au Pleistocene Final el Holocene Initial. Les données obtenues par des fouilles realisées précájelment dans une autre salle de la G ro'tte ainsi que celles qui font I'objet de notre étude, nous ont permis de constater 'une série d'importantes variations écologiques et cl imati"ques fonfamentalment lors de la transition Pleistocene - Holocen

A Pipeline for the QR Update in Digital Signal Processing

[EN] The input and output signals of a digital signal processing system can often be represented by a rectangular matrix as it is the case of the beamformer algorithm, a very useful particular algorithm that allows extraction of the original input signal once it is cleaned from noise and room reverberation. We use a version of this algorithm in which the system matrix must be factorized to solve a least squares problem. The matrix changes periodically according to the input signal sampled; therefore, the factorization needs to be recalculated as fast as possible. In this paper, we propose to use parallelism through a pipeline pattern. With our pipeline, some partial computations are advanced so that the final time required to update the factorization is highly reducedThis work was supported by the Spanish Ministry of Economy and Competitiveness under MINECO and FEDER projects TIN2014-53495-R and TEC2015-67387-C4-1-R.Dolz, MF.; Alventosa, FJ.; Alonso-Jordá, P.; Vidal Maciá, AM. (2019). A Pipeline for the QR Update in Digital Signal Processing. Computational and Mathematical Methods. 1:1-13. https://doi.org/10.1002/cmm4.1022S113

Los proboscideos neógenos de Piquera de San Esteban (Cuenca del Duero, Soria). Implicaciones bioestratigráficas

The study of dental elements of mastodont and dinothere found in Piquera de San Esteban (Soria) specifies them to be Gomphotherium angustidens Cuvier and Deinotherium giganteum Kaup. Gn the basis of this identification and by comparison with other material, the age of the locality is dated being Middle Miocene, to be exact, upper Astaracien, biozone MN7.Se estudian unos elementos dentarios de mastodonte y dinoterio (Proboscidea, Mammalia) encontrados en Piquera de San Esteban (Soria), que se determinan como Gomphotherium angustidens Cuvier y Deinotherium giganteum Kaup. En base a estas identificaciones y por comparación con otros materiales, la localidad se data como Mioceno medio, concretamente como Astaraciense superior, biozona MN7 de Mein

Impact of climate change on surface stirring and transport in the Mediterranean Sea

Understanding how climate change will affect oceanic fluid transport is crucial for environmental applications and human activities. However, a synoptic characterization of the influence of climate change on mesoscale stirring and transport in the surface ocean is missing. To bridge this gap, we exploit a high-resolution, fully coupled climate model of the Mediterranean basin using a Network Theory approach. We project significant increases of horizontal stirring and kinetic energies in the next century, likely due to increments of available potential energy. The future evolution of basin-scale transport patterns hints at a rearrangement of the main hydrodynamic provinces, defined as regions of the surface ocean that are well mixed internally but with minimal cross-flow across their boundaries. This results in increased heterogeneity of province sizes and stronger mixing in their interiors. Our approach can be readily applied to other oceanic regions, providing information for the present and future marine spatial planning.En prensa3,79

La cerámica neolítica de la Cueva de Nerja (Málaga, España): salas del Vestíbulo y la Mina

La Cueva de Nerja es uno de los yacimientos arqueológicos de referencia a la hora de explicar el Neolítico andaluz y peninsular. Partiendo de la caracterización de sus cerámicas, su estratigrafía y sus dataciones radiocarbónicas, presentamos una propuesta de secuencia evolutiva neolítica. Dicha secuencia se contextualiza en los marcos andaluz y peninsular, y también en un marco mediterráneo más amplio para explicar la llegada del Neolítico a la costa malagueña. Asimismo, se da validez al concepto de Cultura de las Cuevas, entidad arqueológica con la que tradicionalmente se ha relacionado la Cueva de Nerja. The Cave of Nerja is a key site for an understanding of the Neolithic period in the Iberian Peninsula and specifically in Andalusia. In this paper we present the sequence for the Neolithic occupation of the cave based on the study of pottery, the stratigraphy and radiocarbon dates. The occupation sequence is contextualized in the regional area and we argue that neolithization was driven by a process with distinctive Mediterranean traits. Moreover, we support that the concept of Culture of Caves is useful as an archaeological entity and that the Cave of Nerja fits well in this framework

SOLUTRENSES DEL SUR DE IBERIA EN TRANSICIÓN

La cuestión de las relaciones tecnoeconómicas entre el Solutrense y los complejos que lo enmarcan (Gravetiense y Badeguliense) permanence abierta y condicionada por los procesos erosivos que coinciden con estos momentos en la mayoría de yacimientos de la región mediterránea ibérica. El análisis de las industrias líticas de Parpalló y Nerja, así como el conjunto de las dataciones radiocarbónicas permite una aproximación a estas relaciones y una evaluación crítica de su marco cronológico.The relationship between the Solutrean and the Gravettian and Badegoulian is still an open issue, and the analysis of this relationship in most sites appears to be conditioned by the effects of erosive processes and taphonomy in sites of Iberian Mediterranean region. Analysis of the lithic industries from Nerja and Parpalló and the regional radiocarbon dates allows for a first evaluation of the technoeconomic relations between these tecnocomplexes and their chronological framework

Fauna y bioestratigrafía del yacimiento Aragoniense de Montejo de la Vega de la Serrezuela (Segovia)

The macro and micromammals fossils of Montejo de la Vega de la Serrezuela (Segovia, Spain) are studied. The identified taxons allow to place the new locality in the Middle Aragonian, unit MN5 of Mein (1977, 1979, 1990). The Montejo de la Vega deposit can be correlated with the Arroyo del Olivar in the Madrid basin and the Las Planas 4A, 4B, Y4C in the Calatayud-Teruel basin.Se estudian los macro y micromamíferos fósiles de Montejo de la Vega de la Serrezuela (Segovia). Los taxones identificados permiten situar esta localidad en el Aragoniense medio, unidad MN5 de Mein (1977, 1979, 1990). El yacimiento de Montejo de la Vega puede correlacionarse con el de Arroyo del Olivar en la cuenca de Madrid y con los de Las Planas 4A, 4B y 4C en la cuenca de Calatayud-Teruel

La Peña de Estebanvela

Pleistocene and Holocene hunter – gatherers in Iberia and the Gibraltar Strait: the current archaeological record, aims to be an updating of the current knowledge on human predatory societies settled in Iberia. The archaeological record of that region is essential for the reconstruction of Human Evolution in Europe in biological, behavioural and cultural domains thus it preserves the earliest and more significant records of the humanization in the continent and because it allows the recovery of the main trends in that process. This is possible thanks to a rich, large and complete record, encompassing all the stages on that development and all the adaptive and cultural modes. Moreover, the discovery of that record is amongst the earliest known archaeological occurrences in the history of our discipline, materialized already during the XIX century. The main aim of that volume is the systematic presentation of the current empirical data written by the same research teams already on work every year on the excavation and analysis of the sites. We have included the current knowledge on the main archaeo-palaeontological sites, those bearing the more significant record. These sites are arranged in eight physiographic and geological regions with the aim of making clear the adaptive ways of human societies to similar environments. Beyond these eight regions it seemed important to us to present the heritage of symbolic behaviour on the caves of the two regions bearing the more extensive record of that cultural trait: the Cantabrian and the Levantine regions. The cave paintings coming from outside these two regions are presented in their own region. Finally, beyond the empirical data, we would like to highlight the main research lines in which the modern Iberian Archaeology is currently engaged in the field of Human Evolution and Palaeoecology.Peer reviewe

Cordage, basketry and containers at the Pleistocene-Holocene boundary in southwest Europe. Evidence from Coves de Santa Maira (Valencian region, Spain)

In this study we present evidence of braided plant fibres and basketry imprints on clay recovered from Coves de Santa Maira, a Palaeolithic-Mesolithic cave site located in the Mediterranean region of Spain. The anatomical features of these organic fibre remains were identified in the archaeological material and compared with modern Stipa tenacissima (esparto grass). Based on direct dating, the fragments of esparto cord from our site are the oldest worked plant fibres in Europe. Sixty fragments of fired clay are described. The clay impressions have allowed us to discuss the making of baskets and containers. According to their attributes and their functional interpretation, we have grouped them into five types within two broad categories, hearth plates and baskets or containers. The clay pieces identified as fragments of containers with basketry impressions are less common than those of hearth plate remains and they are concentrated in the Epipalaeolithic occupation material (13.2-10.2 ka cal bp). The clay impressions from Santa Maira indicate that some fibres were treated or flattened, a preparation process that is known from historical and ethnological sources

Arsenolite: a quasi-hydrostatic solid pressure transmitting medium

This study reports the experimental characterization of the hydrostatic properties of arsenolite (As4O6), a molecular solid which is one of the softest minerals in the absence of hydrogen bonding. The high compressibility of arsenolite and its stability up to 15GPa have been proved by x-ray diffraction measurements, and the progressive loss of hydrostaticity with increasing pressure up to 20GPa has been monitored by ruby photoluminescence. Arsenolite has been found to exhibit hydrostatic behavior up to 2.5GPa and a quasi-hydrostatic behavior up to 10GPa at room temperature. This result opens the way to explore other molecular solids as possible quasi-hydrostatic pressure-transmitting media. The validity of arsenolite as an insulating, stable, non-penetrating and quasi-hydrostatic medium is explored by the study of the x-ray diffraction of zeolite ITQ-29 at high pressure.This work has been performed with financial support from Spanish MINECO under projects MAT2013-46649-C4-2/3-P and MAT2015-71070-REDC. JAS acknowledges the 'Ramon y Cajal' fellowship program for financial support. We also thank D Calatayud, J J Garcia, T M Godoy, A Zapata, and A Cuenca for fruitful discussions. The authors thank ALBA light source for beam allocation at beamline MSPD. JLJ and FR acknowledge financial support through the SEV-2012-0267, Consolider Ingenio 2010-Multicat (CSD-2009-0050) and MAT2015-71842-P (MINECO/FEDER) projects.Sans-Tresserras, JÁ.; Manjón, FJ.; Popescu, C.; Muñoz, A.; Rodríguez-Hernández, P.; Jordá, JL.; Rey Garcia, F. (2016). Arsenolite: a quasi-hydrostatic solid pressure transmitting medium. Journal of Physics: Condensed Matter. 28(47):475403-1-475403-7. doi:10.1088/0953-8984/28/47/475403S475403-1475403-7284