Javier Larrazabal Galarza | Universidad de Valladolid (original) (raw)
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Papers by Javier Larrazabal Galarza
Associação Portuguesa para o Desenvolvimento Regional (APDR), 2017
Geochemistry, Geophysics, Geosystems, 2018
In this work, we present 16 directional and 27 intensity high-quality values from Iberia. Moreove... more 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. Plain language summary Knowledge of the Earth's magnetic field plays an important role on the understanding of its dynamics. By measuring certain rocks or archeological objects from around the world, we can determine the field's shape and intensity in former times. Knowing its evolution is essential to understand how this field is generated, how it has varied through time and how it may behave in the future. In this work, we present new measurements of the magnetic field from the Iberian Peninsula that provide useful constraints on the magnetic field for archeological times that currently lack information. We have updated the compilation of Iberian data for the last 3,000 years and calculated a new reference curve for the magnetic field for this region. We have found that the magnetic field was particularly intense in the Iberian Peninsula about 2,600 years ago. By comparing this result with data from Europe and the Middle East, we observe that this high intensity has been moving from east to west through southern Europe. This feature is probably related with the rapid intensity change (the geomagnetic spike) recently discovered in the Levantine region.
The Importance of Ironmaking. Technical Innovation and Social Change, Vol. II, 1996
Anuario del Instituto de Estudios Zamoranos Florián de Ocampo, 1991
Anuario del Instituto de Estudios Zamoranos Florián de Ocampo, 1990
La financ iación local a través del sistema de recargos: especial referencia a la provincia de Za... more La financ iación local a través del sistema de recargos: especial referencia a la provincia de Zamora. 281 Angel Prieto Guijarro y Francisco Rodríguez: Transformaciones estructurales y economías de tamaño de la agricultura zamorana ..
Catálogo de la exposición La Fragua: aire, fuego y agua (Museo de Salamanca), 1999
IV Congreso de Arqueología Medieval Española. Sociedades en transición, Vol. III, 1993
Bragança. Um olhar sobre a História, 2004
Bragança. Um olhar sobre a História, 2004
Actas V Encontro de Arqueologia do Sudoeste, 2012
Archaeology in the River Duero Valley, 2018
Archaeology in the River Duero Valley, 2018
Geochemistry, Geophysics, Geosystems, 2018
A large set of archaeobotanical samples were recovered during the excavation of Quinta de Crestel... more A large set of archaeobotanical samples were recovered during the excavation of Quinta de Crestelos (Mogadouro), several of which have already been published. This paper focusses on the charcoal analysis still unpublished from two sectors of this site. The first, located in the lower platform, relates to a habitation area comprised of huts and fireplaces from the 4th to the 2nd centuries BC. The second is a functional area with three ovens of different typologies dating to the 1st – 2nd centuries AD. Results revealed a diverse set of taxa, dominated by evergreen and deciduous oak, heath, pine and ash. This data allowed to access uses of wood in the site, namely their relation to the function and type of structures where they have been found
Associação Portuguesa para o Desenvolvimento Regional (APDR), 2017
Geochemistry, Geophysics, Geosystems, 2018
In this work, we present 16 directional and 27 intensity high-quality values from Iberia. Moreove... more 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. Plain language summary Knowledge of the Earth's magnetic field plays an important role on the understanding of its dynamics. By measuring certain rocks or archeological objects from around the world, we can determine the field's shape and intensity in former times. Knowing its evolution is essential to understand how this field is generated, how it has varied through time and how it may behave in the future. In this work, we present new measurements of the magnetic field from the Iberian Peninsula that provide useful constraints on the magnetic field for archeological times that currently lack information. We have updated the compilation of Iberian data for the last 3,000 years and calculated a new reference curve for the magnetic field for this region. We have found that the magnetic field was particularly intense in the Iberian Peninsula about 2,600 years ago. By comparing this result with data from Europe and the Middle East, we observe that this high intensity has been moving from east to west through southern Europe. This feature is probably related with the rapid intensity change (the geomagnetic spike) recently discovered in the Levantine region.
The Importance of Ironmaking. Technical Innovation and Social Change, Vol. II, 1996
Anuario del Instituto de Estudios Zamoranos Florián de Ocampo, 1991
Anuario del Instituto de Estudios Zamoranos Florián de Ocampo, 1990
La financ iación local a través del sistema de recargos: especial referencia a la provincia de Za... more La financ iación local a través del sistema de recargos: especial referencia a la provincia de Zamora. 281 Angel Prieto Guijarro y Francisco Rodríguez: Transformaciones estructurales y economías de tamaño de la agricultura zamorana ..
Catálogo de la exposición La Fragua: aire, fuego y agua (Museo de Salamanca), 1999
IV Congreso de Arqueología Medieval Española. Sociedades en transición, Vol. III, 1993
Bragança. Um olhar sobre a História, 2004
Bragança. Um olhar sobre a História, 2004
Actas V Encontro de Arqueologia do Sudoeste, 2012
Archaeology in the River Duero Valley, 2018
Archaeology in the River Duero Valley, 2018
Geochemistry, Geophysics, Geosystems, 2018
A large set of archaeobotanical samples were recovered during the excavation of Quinta de Crestel... more A large set of archaeobotanical samples were recovered during the excavation of Quinta de Crestelos (Mogadouro), several of which have already been published. This paper focusses on the charcoal analysis still unpublished from two sectors of this site. The first, located in the lower platform, relates to a habitation area comprised of huts and fireplaces from the 4th to the 2nd centuries BC. The second is a functional area with three ovens of different typologies dating to the 1st – 2nd centuries AD. Results revealed a diverse set of taxa, dominated by evergreen and deciduous oak, heath, pine and ash. This data allowed to access uses of wood in the site, namely their relation to the function and type of structures where they have been found
El sexto número de la publicación científica anual de "Investigaciones Arqueológicas en el valle ... more El sexto número de la publicación científica anual de "Investigaciones Arqueológicas en el valle del Duero: Del Paleolítico a la Edad Media", recoge las principales investigaciones que se llevan a cabo en la actualidad en el valle del Duero, centrándose en los periodos históricos que van desde el Paleolítico, pasando por el Neolítico, Calcolítico, Edad del Bronce, Edad del Hierro, Romanización, Antigüedad Tardía hasta alcanzar la Edad Media.
En este volumen se recogen un total de 41 artículos de investigadores portugueses y españoles, que tratan los principales avances que en la actualidad se están llevando a cabo en el ámbito del valle del Duero y sus regiones limítrofes. En esta obra tienen cabida tanto trabajos de investigación procedentes del ámbito académico, como aquellos realizados por diferentes empresas de arqueología, asociaciones o diferentes grupos de investigación, que permiten tener una visión más amplia de las últimas investigaciones, convirtiéndola en una obra de referencia para el estudio de esta región.
41st International Symposium on Archaeometry (ISA), 2016
Physics of the Earth and Planetary Interiors, 2017
Please cite this article as: Palencia-Ortas, A., Osete, M.L., Campuzano, S.A., McIntosh, G., Larr... more Please cite this article as: Palencia-Ortas, A., Osete, M.L., Campuzano, S.A., McIntosh, G., Larrazabal, J., Sastre, J., Rodriguez-Aranda, J., New archaeomagnetic directions from Portugal and evolution of the geomagnetic field in Iberia from Late Bronze Age to Roman Times.,