Las discontinuidades del límite Dogger-Malm: estructuras y lagunas estratigráficas asociadas (Subbético oriental

The Dogger-Malm boundary unconformities show different structures in the Eastern Subbetic outcrops. They are identified by the presence of characteristic fossils associated to the hardgrounds, two types of ichnofossils (Thalassinoides and litophagine borings), stromatolites, and neptunian dykes and...

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Detalhes bibliográficos
Autores: Nieto, Luis M.; Checa, A.; Molina, José Miguel; Ruiz Ortiz, Pedro Alejandro
Tipo de documento: Artigo
Data de publicação:1995
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:10272/13412
Acesso em linha:http://hdl.handle.net/10272/13412
Nível de acesso:Acesso aberto
Palavra-chave:Unconformity
Dogger-Malm boundary
Hardground
Ichnofossils
Stromatolites
Neptunian dykes
Descrição
Resumo:The Dogger-Malm boundary unconformities show different structures in the Eastern Subbetic outcrops. They are identified by the presence of characteristic fossils associated to the hardgrounds, two types of ichnofossils (Thalassinoides and litophagine borings), stromatolites, and neptunian dykes and a paleofault. They were generated in pelagic swells with changes in the intensitiy of oceanic currents. The hiatuses associated to these unconformities are variable between differents outcrops, mainly including the Upper Bathonian and the Upper Callovian-Lower Oxfordian