Datos bioestratigráficos de los materiales silúricos del Sinclinal de Herrera del Duque (Badajoz)
The Silurian sequence in the Herrera del Duque syncline (Southern Central Iberian zone) starts with 20 m of black shales (Guadarranquejo Formation) which lay disconformably upon the Hirnantian diamictites (Gualija Formation). Within the black shales, eight graptolite horizons have been recorded (A-H...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 1990 |
| 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:10272/18149 |
| Acesso em linha: | http://hdl.handle.net/10272/18149 |
| Access Level: | acceso abierto |
| Palavra-chave: | Silurian Biostratigraphy Graptolites Central Iberian zone Hesperian Massif |
| Resumo: | The Silurian sequence in the Herrera del Duque syncline (Southern Central Iberian zone) starts with 20 m of black shales (Guadarranquejo Formation) which lay disconformably upon the Hirnantian diamictites (Gualija Formation). Within the black shales, eight graptolite horizons have been recorded (A-H) and two (I-J) at the base of the overlying sandy alternances. A Telychian (post-Turriculatus Zone) age for the Guadarranquejo Formation has been suggested, the Llandovery/Wenlock boundary lying probably near its top |
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