Edad devónica (Struniense) de las mineralizaciones de Aznalcóllar (Faja Pirítica Ibérica) en base a palinología.
- Z. Pereira 1
- R Sáez 2
- J.M. Pons 3
- J.T. Oliveira 4
- C. Moreno 2
- 1 Mineralogía e Geología, Facultade de Ciencias, Universidade do Porto, Praça Gomes Teixeira, 4050 Porto, Portugal.
- 2 Depto. de Geología, Universidad de Huelva, 21819 La Rábida, Huelva, España.
- 3 Andaluza de Pintas S.A. (APIRSA), 41890 Aznalcollar, Sevilla, España.
- 4 Instituto Geológico e Minero, Estrada da Portela-Zanbujal, Ap. 7586 Alfragide, Portugal.
ISSN: 0213-683X
Year of publication: 1996
Issue: 20
Pages: 1609-1614
Type: Article
More publications in: Geogaceta
Abstract
Black shales associated to productive horizon in the Aznalcóllar mine have provided miospore assemblages from the Uppermost Devonian (Strunian, LN Miospore Biozone of Western Europe). StratEgraphic location of black shales between felsic volcanics and massive sulphides lets to conclude that massive sulphides are Upper Devonian in age. Moreover, the beginning of volcanism in the Iberian Pyrite Belt occurred during Devonian times, at least in its easternmost part.