Absolute dating by thermoluminescence of archaeological pottery from granite caves of NW Iberian Penninsula

• Autores: Jorge Sanjurjo Sánchez, Juan Ramón Vidal Romaní, M. Vaqueiro, R. Costas Vázquez, Aurora Grandal-d'Anglade
• Localización: Avances de la Geomorfología en España 2012-2014 / coord. por Susanne Cecilia Schnabel, Álvaro Gómez Gutiérrez, 2014, ISBN 978-84-617-1123-9, págs. 470-473
• Idioma: inglés
• Títulos paralelos:
  • Datación absoluta por termoluminiscencia de cerámicas arqueológicas en cuevas graníticas del NW de la Península Ibérica
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• Resumen

  • Granite caves and cavities are similar to those found in karstic areas but smaller. They are linked to underground water flows with a seasonal strong turbulent regime. Pottery remains appear either exposed or buried and may be dated by thermoluminescence (TL). Both the small size of the fragments (due to erosion and fragmentation caused by water dynamics) and the absence of the original sedimentary context in most cases hinder the use of TL for dating. In this work, we show the first age estimates of pottery fragments and some absolute dates of samples of several granite caves of Galicia. The obtained ages go from Medieval (1 ka BP) to Roman or pre-Roman (2 ka BP), Chalcolithic (6 ka BP) and even the beginning of the Neolithic (7 ka BP).