RT Journal Article
T1 The Upper Devonian Kellwasser event recorded in a regressivesequence from inner shelf to lagoonal pond, Catalan Coastal Ranges, Spain
A1 Moreno Garrido, María Carmen
A1 González Barrionuevo, Felipe
A1 Sáez Ramos, Reinaldo
A1 Melgarejo, Joan Carles
A1 Suárez Ruiz; Isabel, 
AB This study, conducted in the Catalan Coastal Ranges, north-east Spain, describes the Upper Devonian Kellwasser event in a shallowing-upward sequence of black shales, siltstones and quartz arenites. This sequence was deposited in a progradational and regressive coastal system where the sedimentary environment evolved from the inner shelf to a lagoonal pond located landward of the shoreline. Three anomalous succeeding steps have been identified by geochemical analysis. The first one, detected on the inner shelf, was characterized by oxygen depletion and high organic productivity. The second, detected in the nearshore, was caused by hydrothermal activity occurring under normal oxic conditions. The third and most intense step was identified in the muds of the lagoonal pond and has been linked to strong anoxic conditions, elevated clastic input derived from changes in the weathering regime at the source area and moderate hydrothermal activity. The Kellwasser event is thus defined in the study area as stepwise and multi-causal. This is the first time that the Kellwasser event has been identified in a sedimentary environment behind the shoreline. It is also the first time that it has been reported in the Catalan Coastal Ranges.
PB International Association of Sedimentologists (IAS)
SN 0037-0746
SN 1365-3091 (electrónico)
YR 2018
FD 2018
LK https://hdl.handle.net/10272/27692
UL https://hdl.handle.net/10272/27692
LA eng
NO Moreno, C., González, F., Sáez, R., Melgarejo, J. C., & Suárez‐Ruiz, I. (2018). The Upper Devonian Kellwasser event recorded in a regressive sequence from inner shelf to lagoonal pond, Catalan Coastal Ranges, Spain. Sedimentology, 65(6), 2055–2087. https://doi.org/10.1111/sed.12457
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026