Evolución morfosedimentaria del sistema aluvial de Valsalada (Leciñena, Los Monegros) durante el Pleistoceno superior-Holoceno: aproximación paleoambiental
A first approach to the palaeoenvironmental significance of the Valsalada (Central Ebro basin) alluvial record, Upper Pleistocene-Holocene in age, is presented starting from geomorhological, sedimentological and radiocarbon data. This morphosedimentary sequence is made up by three evolutionary phase...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2006 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositório: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | espanhol |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8481 |
| Acesso em linha: | http://hdl.handle.net/10272/8481 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Morphosedimentary alluvial record Upper Pleistocene-Holocene Environmental change Central Ebro basin |
| Resumo: | A first approach to the palaeoenvironmental significance of the Valsalada (Central Ebro basin) alluvial record, Upper Pleistocene-Holocene in age, is presented starting from geomorhological, sedimentological and radiocarbon data. This morphosedimentary sequence is made up by three evolutionary phases: 1) lacustrine stage (37,050±50 BP) under cool and humid conditions, 2) alluvial stage (from 10,550±80 BP to 3,225±50 BP) related to cold and wet climate and 3) colluvial fans stage (1,640±50 BP) during arid climate with human action influence. The Valsalada alluvial system shows a singular morphosedimentary evolution strongly influenced by climatic changes bearing variations in water dischar ges and hydrological availability in surrounding saline wetlands |
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