El Médano megarhizoliths field, Tenerife: Origin and paleoenvironmental significance
The vertical cylindrical structures that occur in El Médano (Tenerife) have had varied interpretations. The structures are about a few decimeters in diameter and may reach near 1 m high. In this paper we provide data that support their interpretation as megarhizoliths formed by roots and associated...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/16743 |
| Acesso em linha: | http://hdl.handle.net/10272/16743 |
| Access Level: | acceso abierto |
| Palavra-chave: | Tenerife Eolian deposits Megarhizoliths Roots Microbes Depósitos eólicos Megarrizolitos Raíces Microbios |
| Resumo: | The vertical cylindrical structures that occur in El Médano (Tenerife) have had varied interpretations. The structures are about a few decimeters in diameter and may reach near 1 m high. In this paper we provide data that support their interpretation as megarhizoliths formed by roots and associated microorganisms within eolian deposits. The common association with smaller roots and insect traces, as well as the fine carbonate laminae indicate their formation in vegetated soils during relatively wetter periods. The micritic-microesparitic coatings, the peloids, ooids and the alveolar septal structures confirm the biogenic origin of these structures |
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