RT Journal Article
T1 Los diques clásticos de Filón Norte (Tharsis). Interpretación en relación con la crisis finidevónica de la cuenca de la Faja Pirítica Ibérica
T1 Clastic dykes of the Filón Norte open pit (Tharsis). Interpretation related with the uppermost Devonian crisis ofthe Iberian Pyrite Belt basin
A1 Sáez Ramos, Reinaldo
A1 Moreno Garrido, María Carmen
A1 González Barrionuevo, Felipe
AB Basic rocks from the Filón Norte open pit (Tharsis, Iberian Pyrite Belt) are hydrothermally altered andcrosscutted by a stockwork which is composed by carbonate filled veins and clastic dikes. Both, dykes andveins, show carbnonate selvages. Clastic dykes include black shale, basic rock and siliceous fragments thatexhibit angular to lobulate shape and grain size up to 40 cm in diameter. Palynomorphs recovered fromblack shales of the clastic dykes give an uppermost Devonian age (LN Biozone).Dykes and veins belong to a fracture system representing the escape pathways of fluids trapped within thefootwall muddy sediments when the basic sill was intruded. Black shale sedimentation, emplacement ofthe basic sills, fracturation and carbonate alteration, and filling of veins and dykes constitute a successionof nearly coeval events, all of them related with the uppermost Devonian crisis of the South Iberian Basin.
PB Sociedad Geológica de España
YR 2004
FD 2004
LK http://hdl.handle.net/10272/8878
UL http://hdl.handle.net/10272/8878
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026