El límite Dogger-Malm en la Cordillera Ibérica: anomalías geoquímicas y fenómenos asociados
The hypothesis put forward by Raup and Sepkoski, linking major mass extintions with cyclic cosmic catastrophes, focussed attention on several geological boundaries. This was also the case of the Middle/Upper Jurassic boundary in Poland and Spain (Iberian Chain). Some «rare events» have been detected...
| Autores: | , , , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 1987 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/18450 |
| Acesso em linha: | http://hdl.handle.net/10272/18450 |
| Access Level: | acceso abierto |
| Palavra-chave: | Jurassic Dogger/Malm boundary Extintions Rare events Iberian Chain |
| Resumo: | The hypothesis put forward by Raup and Sepkoski, linking major mass extintions with cyclic cosmic catastrophes, focussed attention on several geological boundaries. This was also the case of the Middle/Upper Jurassic boundary in Poland and Spain (Iberian Chain). Some «rare events» have been detected: possible submarine corrosion processes, Iranomaly and high enrichment in heavy metals (Fe, Mn, Ni, Co, Ra and Pt), cosmic dust, etc. |
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