24 research outputs found

    First directional European palaeosecular variation curve for the Neolithic based on archaeomagnetic data

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    Neolithic, Chalcolithic and Bronze Age anthropogenic cave sediments from three caves from northern Spain have been palaeomagnetically investigated. 662 oriented specimens corresponding to 39 burning events (ash–carbonaceous couplets) from the three sites with an average of 16 samples per fire were collected. 26 new archaeomagnetic directions have been obtained for the time period ranging from 5500 to 2000 yr cal. BC. These results represent the oldest archaeomagnetic directions obtained from burnt archaeological materials throughout all Western Europe. Magnetisation is carried by pseudo-single domain low-coercivity ferromagnetic minerals (magnetite, magnetite with no significant isomorphous substitution and/or maghaemite). Rock-magnetic experiments indicate a thermoremanent origin of the magnetisation although a thermochemical magnetisation cannot be excluded. Combination of the new data presented here and the recent updated Bulgarian database allows us to propose the first European palaeosecular variation (PSV) curve for the Neolithic. A bootstrap method was applied for the curve construction using penalised cubic B-splines in time. The new palaeosecular variation curve is well constrained from 6000 BC to 3700 BC, the period with the highest density of data, showing a declination maximum around 4700 BC and a minimum in inclination at 4300 BC, which are not recorded by the recent global CALS10K.1b and regional SCHA.DIF.8K models due to the use of lake sediment data. Dating resolution by using the proposed PSV curve oscillates from approximately ±30 yr to ±200 yr for the period 6000 to 1000 yr BC, reaching similar resolution as radiocarbon dating. Considering the good preservation, age-control and widespread occurrence of burnt archaeological materials across Southern Europe, they represent a new source of data for geomagnetic field modelling, as well as for archaeomagnetic dating.Published124-1371A. Geomagnetismo e PaleomagnetismoJCR Journalrestricte

    A comparison of Thellier-type and multispecimen paleointensity determinations on Pleistocene and historical lava flows from Lanzarote (Canary Islands, Spain)

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    Sixteen Miocene, Pleistocene, and historic lava flows have been sampled in Lanzarote (Canary Islands) for paleointensity analysis with both the Coe and multispecimen methods. Besides obtaining new data, the main goal of the study was the comparison of paleointensity results determined with two different techniques. Characteristic Remanent Magnetization (ChRM) directions were obtained in 15 flows, and 12 were chosen for paleointensity determination. In Thellier-type experiments, a selection of reliable paleointensity determinations (43 of 78 studied samples) was performed using sets of criteria of different stringency, trying to relate the quality of results to the strictness of the chosen criteria. Uncorrected and fraction and domain-state corrected multispecimen paleointensity results were obtained in all flows. Results with the Coe method on historical flows either agree with the expected values or show moderately lower ones, but multispecimen determinations display a large deviation from the expected result in one case. No relation can be detected between correct or anomalous results and paleointensity determination quality or rock-magnetic properties. However, results on historical flows suggest that agreement between both methods could be a good indicator of correct determinations. Comparison of results obtained with both methods on seven Pleistocene flows yields an excellent agreement in four and disagreements in three cases. Pleistocene determinations were only accepted if either results from both methods agreed or a result was based on a sufficiently large number (n>4) of individual Thellier-type determinations. In most Pleistocene flows, a VADM around 5 31022 Am2 was observed, although two flows displayed higher values around 931022 Am2.project CGL2012-32149 (Ministerio de Econom ıa y Competitividad, Spain), project 320/2011 (Ministerio de Medio Ambiente y Medio Rural y Marino, Spain) and the European Regional Development Fund (ERDF)

    8.2 ka BP paleoclimatic event and the Ebro Valley Mesolithic groups: Preliminary data from Artusia rock shelter (Unzué, Navarra, Spain)

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    This paper presents the results of the first excavation campaign of the Artusia rock shelter in Unzué, Navarre, Spain. Chronocultural and archaeobiological analyses revealed five different occupation phases (Artusia I–V) within the regional Mesolithic timeline, specifically in the Mesolithic of Notches and Denticulates (Artusia I and II) and the Geometric Mesolithic (Artusia III, IV, and V). In addition, the study of the sedimentological and palaeoenvironmental evolution in the entire record helped to clearly define several climatic events which developed around 6550 cal BC–8500 cal BP and 6250 cal BC–8200 cal BP. Here, we present a description of these events and their (pre)historical interpretation with the aim of recognizing how they influenced the Mesolithic hunter–gatherer groups living in the Ebro Basin of the Iberian Peninsula.projects “Los Caminos del Neolítico” -HAR2009- 09027- and “Los Caminos del Neolítico II” -(HAR2013-46800-P)- under directed by Dr. Manuel Rojo Guerra, granted by the Subdirectorate General for Research Projects/General Directorate of Research and Management of the National Plan for R and D and Innovation/Secretary of State for Research of the Ministry of Science and Innovation of Spain, and co-financed by the Government of Navarre. All analytical work and radiocarbon dating were carried out within the project “Origins and spread of agriculture in the western Mediterranean region” -ERC-2008-AdG 230561-, coordinated by Dr. Leonor Pe~na Chocarro and financed by the European Research Council

    Updated Iberian archeomagnetic catalogue: new full vector paleosecular variation curve for the last three millennia

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    In this work, we present 16 directional and 27 intensity high‐quality values from Iberia. Moreover, we have updated the Iberian archeomagnetic catalogue published more than 10 years ago with a considerable increase in the database. This has led to a notable improvement of both temporal and spatial data distribution. A full vector paleosecular variation curve from 1000 BC to 1900 AD has been developed using high‐quality data within a radius of 900 km from Madrid. A hierarchical bootstrap method has been followed for the computation of the curves. The most remarkable feature of the new curves is a notable intensity maximum of about 80 μT around 600 BC, which has not been previously reported for the Iberian Peninsula. We have also analyzed the evolution of the paleofield in Europe for the last three thousand years and conclude that the high maximum intensity values observed around 600 BC in the Iberian Peninsula could respond to the same feature as the Levantine Iron Age Anomaly, after travelling westward through Europe

    Age and date for early arrival of the Acheulian in Europe (Barranc de la Boella, la Canonja, Spain)

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    The first arrivals of hominin populations into Eurasia during the Early Pleistocene are currently considered to have occurred as short and poorly dated biological dispersions. Questions as to the tempo and mode of these early prehistoric settlements have given rise to debates concerning the taxonomic significance of the lithic assemblages, as trace fossils, and the geographical distribution of the technological traditions found in the Lower Palaeolithic record. Here, we report on the Barranc de la Boella site which has yielded a lithic assemblage dating to ,1 million years ago that includes large cutting tools (LCT). We argue that distinct technological traditions coexisted in the Iberian archaeological repertoires of the late Early Pleistocene age in a similar way to the earliest sub-Saharan African artefact assemblages. These differences between stone tool assemblages may be attributed to the different chronologies of hominin dispersal events. The archaeological record of Barranc de la Boella completes the geographical distribution of LCT assemblages across southern Eurasia during the EMPT (Early-Middle Pleistocene Transition, circa 942 to 641 kyr). Up to now, chronology of the earliest European LCT assemblages is based on the abundant Palaeolithic record found in terrace river sequences which have been dated to the end of the EMPT and later. However, the findings at Barranc de la Boella suggest that early LCT lithic assemblages appeared in the SW of Europe during earlier hominin dispersal episodes before the definitive colonization of temperate Eurasia took place.The research at Barranc de la Boella has been carried out with the financial support of the Spanish Ministerio de Economı´a y Competitividad (CGL2012- 36682; CGL2012-38358, CGL2012-38434-C03-03 and CGL2010-15326; MICINN project HAR2009-7223/HIST), Generalitat de Catalunya, AGAUR agence (projects 2014SGR-901; 2014SGR-899; 2009SGR-324, 2009PBR-0033 and 2009SGR-188) and Junta de Castilla y Leo´n BU1004A09. Financial support for Barranc de la Boella field work and archaeological excavations is provided by the Ajuntament de la Canonja and Departament de Cultura (Servei d’Arqueologia i Paleontologia) de la Generalitat de Catalunya. A. Carrancho’s research was funded by the International Excellence Programme, Reinforcement subprogramme of the Spanish Ministry of Education. I. Lozano-Ferna´ndez acknowledges the pre-doctoral grant from the Fundacio´n Atapuerca. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

    Evaluation Of Cultural Projects [avaliação De Projetos Culturais]

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    This study focused the evaluation in the field of culture in Brazil and of the methodology of building an evaluation tool for cultural projects (APC).The study was conducted in three stages. The first discussed related studies and the evaluation of cultural projects approved by the Ministry of Culture through the Rouanet Law, pointing out the directives to value judgments, criteria, procedures and results. In the second, the APC was elaborated and categories and quality indicators were analyzed to create the evaluation outline of this instrument. The third stage conducted the preliminary validation of the instrument by a panel of three experts in cultural sponsorship. According to this panel, most of the items were consistent to technical characteristics in all parts of the instrument. Therefore, the APC was favorably evaluated by experts. Then it was applied as a pilot to a project approved by the cultural CNIC. It was concluded that despite being in an experimental phase, the APC demonstrated to have content validity according to the experts' evaluation, and revealed qualities of utility, feasibility, propriety and accuracy, and also can be applied to the evaluation of cultural projects. The APC presented the capacity to partially supply the lack of subjective models on the market, to provide information that might instigate a renewed discussion of projects' rating systems by the sponsors of the cultural sector and has the force to serve as a reference for improving the evaluative practice of cultural projects in this segment of the economy.26289320Botelho, I., O desenvolvimento de pesquisas no campo das políticas culturais (2007) Revista Observatório Itaú Cultural, (2), pp. 66-71. , São Paulo, maio/ago(2006) Estabelece Sistemática de Execução do Programa Nacional de Apoio à Cultura - PRONAC e Dá Outras Providências, , http://www.cultura.gov.br/site/wp-content/uploads/2007/10/decreto-5761. pdf, BRASIL. Decreto no 5.761, de 27 de abril de 2006. Regulamenta a Lei no 8.313, de 23 de dezembro de 1991, Diário Oficial da União, Brasília, DF, 28 abr. Retificado no D.O.U. de 11.5.2006. Disponível em. Acesso em: 23 out. 2009(1986) Dispõe Sobre Benefícios Fiscais Na áRea do Imposto de Renda Concedidos a Operações de Caráter Cultural Ou Artístico, , http://www.planalto.gov.br/ccivil_03/LEIS/L7505.htm, BRASIL. Lei no. 7.505, de 2 de julho de 1986. Diário Oficial da [República Federativa do Brasil], Brasília, DF, 3 jul. Disponível em, Acesso em: 23 out. 2009(1991) Institui O Programa Nacional de Apoio à Cultura (Pronac) e Dá Outras Providências, , www.planalto.gov.br/ccivil.../LEIS/L8313cons.htm, BRASIL. Lei no 8.313, de 23 de dezembro de 1991. Restabelece princípios da Lei no 7.505, de 2 de julho de 1986. Diário Oficial da [República Federativa do Brasil], Brasília, DF, 24 dez. Disponível em, Acesso em: 23 out. 2009(2009) Cultura Em Números: Anuário de Estatísticas Culturais 2009, , BRASIL. Ministério da Cultura. Brasília, DF(2007) Diretrizes Gerais Para O Plano Nacional de Cultura, , BRASIL. Ministério da Cultura. Brasília, DF(1972) Diário do Congresso Naciona, p. 3989. , BRASIL. Senado Federal. Projeto de Lei no 54, de 26 de outubro de 1972.l, Brasília, DF, 27 out. Seção 2Caldeira, J.B., O peso do incentivo fiscal (2009) Revista Observatório Itaú Cultural, (7), pp. 67-72. , São Paulo., jan./marCoelho, T., A conquista esquecida (2009) Revista Observatório Itaú Cultural, (7), pp. 9-14. , São Paulo, jan./marCoelho, T., Política cultural em nova chave (2007) Revista Observatório Itaú Cultural, (3), pp. 9-21. , São Paulo, set./dezDavok, D.F., (2006) Modelo de Meta-avaliação e Processos de Avaliaç ão da Qualidade de Cursos de Graduação, p. 272. , Tese (Doutorado) - Programa de Pós-Graduação em Engenharia de Produção, Universidade Federal de Santa Catarina, Florianópolis, 2006Dias Sobrinho, J.C., (2002) Avaliação: Construindo O Campo e a Crítica, , Florianópolis. InsularENCONTROS discutem construção e uso de indicadores culturais (2008) Revista Observatório Itaú Cultural, (4), pp. 9-14. , São Paulo, jan./abrOS FAZERES e os saberes dos gestores de cultura no Brasil (2008) Revista Observatório Itaú Cultural, (6), pp. 9-20. , São Paulo, jul./setIorio, U.J.S., (1995) Economia e Liberdade: A Escola Austríaca e a Economia, , Belo Horizonte: Inconfidentes(1994) The Program Evaluation Standards: How to Assess Evaluations of Educational Programs, , JOINT COMMITTEE ON STANDARDS FOR EDUCATIONAL EVALUATION. 2. ed. Thousand Oaks, CA: SageMoller, C., (1992) O Lado Humano da Qualidade, , São Paulo: PioneiraPatton, M.Q., (1997) Utilization-focused Evaluation: The New Century Text, , 3. ed. Thousand Oaks, CA: SAGEPenna Firme, T., (2006) Os Avanços da Avaliação No Século XXI, , http://www.cenpec.org.br/modules/editor/arquivos/c8a0633f-4d01-eae6.pdf, CENPEC, São Paulo, Disponível em. Acesso em: 20 jul. 2009Sander, B., (1995) Gestão da Educação Na América Latina: Construção e Reconstrução do Conhecimento, , Campinas, SP: Autores AssociadosScriven, M., (1991) Evaluation Thesaurus, , 4. ed. Newbury Park, CA: SageSilva, F.A.B., (2007) Economia e Política Cultural: Acesso, Emprego e Financiamento, 3. , Rio de Janeiro: IPEABrasília, DF: MinC, (Coleção Cadernos de Políticas Culturais)Silva, F.A.B., (2007) Política Cultural No Brasil, 2002-2006: Acompanhamento e Análise, 2. , Rio de Janeiro: IPEABrasília, DF: MinC, (Coleção Cadernos de Políticas culturais)Thiry-crerques, H.R., (2008) Projetos Culturais: Técnicas de Modelagem, , 2. ed. 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    IV Congreso Nacional de Innovación en Ciencias Jurídicas: Coordinación y planificación en los estudios de derecho

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    Producción CientíficaEntre las competencias generales previstas en los planes de estudio se recoge la protección de la igualdad de trato porque así lo exige la normativa que regula el contenido de las memorias de Grado. Esto implica que tal competencia sea considerada de carácter transversal en todos los Grados ofertados por las Universidades españolas. No obstante, entendemos que en las enseñanzas jurídicas se debe potenciar la adquisición de esta competencia con un carácter esencial, de modo que tanto en el Derecho Privado, como en el Derecho Público, se propicie el respeto por este principio fundamental en nuestro sistema jurídico, sobre el que se sustenta el ejercicio de los demás derechos de los ciudadanos

    Rock-magnetic and paleomagnetic results from the Tepic-Zacoalco rift region (western Mexico)

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    A rock-magnetic and paleomagnetic investigation was carried out on eleven Pleistocene and Pliocene 40Ar/39Ar dated lava flows from the Tepic-Zacoalco rift region in the western sector of the Trans-Mexican Volcanic Belt (TMVB) with the aim of obtaining new paleomagnetic data from the study region and information about the Earth's magnetic field recorded in these rocks. Rock-magnetic experiments including measurement of thermomagnetic curves, hysteresis parameters and isothermal remanence acquisition curves were carried out to find out the carriers of remanent magnetisation and to determine their domain structure. Although some samples were characterised by the presence of a single ferromagnetic phase (magnetite), in most cases more phases were observed. Analysis of hysteresis parameters showed a mixture of single domain and multidomain particles, the fraction of the latter varying between 40% and 80%. Paleomagnetic results were obtained in all sites, although in 7 sites characteristic remanence directions and remagnetisation circles had to be combined in order to calculate site means. The six Pliocene sites not showing intermediate polarity yielded a paleomagnetic pole (latitude ?{symbol} = 81.1, longitude ? = 94.3) which roughly agrees with the expected one. Paleomagnetic directions do not indicate significant vertical-axis block rotations in the western TMVB area. Reversed polarities observed can be correlated to the Gilbert chron, normal polarities to the Gauss chron or the Brunhes chron and intermediate polarities to the Cochiti-Gilbert or the Gilbert-Gauss transition. The reversed or intermediate polarity magnetisation recorded in one of the sites (542 24 ka) corresponds either to the West Eifel 4 or the West Eifel 5 excursion, while the reversed polarity observed in the other site (220 36 ka) very likely provides new evidence for the Pringle Falls excursion or the event recorded in the Mamaku ignimbrite. 2013 Institute of Geophysics of the ASCR, v.v.i
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