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The massive sulphide event in the Iberian Pyrite Belt: confirmatory evidence from the Sotiel-Coronada Mine

Published online by Cambridge University Press:  14 September 2006

FELIPE GONZÁLEZ ,
CARMEN MORENO  and
AMÉRICO SANTOS
FELIPE GONZÁLEZ
Affiliation:
Departamento de Geología, Facultad de Ciencias Experimentales, Universidad de Huelva, Avenida de las Fuerzas Armadas s/n, E-21071 Huelva, Spain
CARMEN MORENO
Affiliation:
Departamento de Geología, Facultad de Ciencias Experimentales, Universidad de Huelva, Avenida de las Fuerzas Armadas s/n, E-21071 Huelva, Spain
AMÉRICO SANTOS
Affiliation:
Departamento de Geología, Facultad de Ciencias Experimentales, Universidad de Huelva, Avenida de las Fuerzas Armadas s/n, E-21071 Huelva, Spain
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Abstract

Well-preserved miospore and organic-walled microphytoplankton assemblages have been recovered from the black shaly series hosting the massive sulphide deposits of Sotiel-Coronada Mine (Iberian Pyrite Belt). The productive samples yielded miospore assemblages representing the uppermost Famennian Retispora lepidophyta–Verrucosisporites nitidus (LN) miospore Biozone of Western Europe. This palynological evidence has important implications for the local geology, constraining the commencement of the volcanic activity and corroborating the previously-defined local tectonic style. Moreover, at regional scale, the new data permit correlation of the black shaly series (which hosts the mineralization in all the sulphide deposits hitherto dated in the region), reinforcing the hypothesis of an anoxic event occurring in the Iberian Pyrite Belt in the latest Devonian times.

Keywords

DevonianIberian Pyrite BeltSotiel-Coronada MineSpainpalynologyblack shales
Type
Original Article
Information
Geological Magazine , Volume 143 , Issue 6 , November 2006 , pp. 821 - 827
Copyright
© 2006 Cambridge University Press

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