RT Journal Article
T1 Early Aptian development and OAE 1a-linked demise of a carbonate platform in the western Tethys: Lower Cretaceous of Sierra Mariola (South Iberian Paleomargin, SE Spain)
A1 Martínez Rodríguez, Rafael
A1 Castro, José M.
A1 Gea, Ginés A. de
A1 Nieto, Luis M.
A1 Ruiz Ortiz, P. A.
A1 Skelton, Peter W.
AB A carbonate platform succession of early Aptian age is described from the Sierra Mariola, which is located within the Prebetic Zone of the Betic External Zones (BEZ) of the Southern Iberian Palaeomargin, in SE Spain. The facies and stratigraphic architecture of the studied succession are described and analysed from multiple logged sections to characterize different depositional environments.The cyclic stacking of facies observed suggests a possible orbital forcing of climate transmitted to sedimentation. Superbundles are recognized describing two sequences of Regressive-Transgressive (R-T) evolution. Analysis of carbon-isotope data identifies both the interval before the hyperthermal event of the early Aptian Oceanic Anoxic Event (OAE 1a) and the onset of the latter event, with an abrupt change in sedimentation marking the demise of the carbonate platform. The field outcrop thus preserves a record of the transition from a greenhouse world to a hothouse event.
PB Elsevier
SN 0195-6671
YR 2025
FD 2025-03
LK https://hdl.handle.net/20.500.14352/112273
UL https://hdl.handle.net/20.500.14352/112273
LA eng
NO Martínez-Rodríguez, Rafael, et al. «Early Aptian Development and OAE 1a-Linked Demise of a Carbonate Platform in the Western Tethys: Lower Cretaceous of Sierra Mariola (South Iberian Paleomargin, SE Spain)». Cretaceous Research, vol. 167, marzo de 2025, p. 106032, https://doi.org/10.1016/j.cretres.2024.106032.
NO Spanish Ministry of Science and Technology
NO Universidad de Jaén
DS Docta Complutense
RD 4 abr 2025