Application of Supervised Classification Techniques to Distinguish Past Tsunami-Generated Layers: A Case Study in South-Western Spain
This paper applies three supervised classification techniques to distinguish between tsunami-generated and non-tsunami-generated layers in a sediment core obtained from Doñana National Park (south-west Spain), based on their mineralogical and rare-earth element content. The tsunami-generated layers are characterized by high rare-earth element contents and, in most cases, increased levels of quartz, feldspars and dolomite. This differentiation, combined with palaeontological and sedimentological criteria, reveals that a tsunami occurred in this area during the Upper Pleistocene, between 44 and 50 kyr ago, during the MIS-3 isotopic stage. These statistical techniques could be applied to define tsunami-generated layers in sediment cores more precisely, in conjunction with multidisciplinary geological analyses.
Authors
- Adolfo Miras (ORCID: https://orcid.org/0000-0001-9065-0813)
- Manuel Pozo (ORCID: https://orcid.org/0000-0002-6706-440X)
- Rosa Marques (ORCID: https://orcid.org/0000-0001-6239-5456)
- Juan Manuel Muñoz Pichardo (ORCID: https://orcid.org/0000-0001-8841-1987)
- María Isabel Prudêncio (ORCID: https://orcid.org/0000-0003-2311-1806)
- Tatiana Izquierdo (ORCID: https://orcid.org/0000-0002-3805-2020)
- Paula Gómez (ORCID: https://orcid.org/0000-0002-3622-1791)
- Manuel Abad (ORCID: https://orcid.org/0000-0003-1930-2650)
- María Isabel Dias (ORCID: https://orcid.org/0000-0002-7033-0502)
- António Toscano (ORCID: https://orcid.org/0000-0003-2144-5714)
- Luís Miguel Cáceres Puro (ORCID: https://orcid.org/0000-0002-1381-2476)
- Marı́a Isabel Carretero (ORCID: https://orcid.org/0000-0002-7277-0851)
- Joaquı́n Rodrı́guez Vidal (ORCID: https://orcid.org/0000-0002-9475-3307)
- Francisco Ruiz (ORCID: https://orcid.org/0000-0002-7110-3133)
- Verónica Romero
- María Luz González-Regalado
- José Manuel Bernabé
Institutions
- University of Lisbon (PT)
- Universidad Rey Juan Carlos (ES)
- Centro de Ciências e Tecnologias Nucleares (PT)
- Universidad Autónoma de Madrid (ES)
- Universidad de Huelva (ES)
- Universidad de Sevilla (ES)
Publication Details
- Journal
- Minerals
- Published
- 2026-10-26
- DOI
- https://doi.org/10.3390/min16111107
- Primary Topic
- Earthquake and Tsunami Effects
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Universidad de Huelva