@misc{10481/105811,
year = {2024},
month = {7},
url = {https://hdl.handle.net/10481/105811},
abstract = {We investigate a new event of accelerated environmental change that was recorded during
the late Barremian in the pelagic Subbetic Basin (Western Tethys). Two pelagic sections have been
studied using a multi-proxy approach based on C-isotope stratigraphy and a high-resolution quantitative study of nannofossil assemblages, along with major and trace elements and biomarkers. Our
results provide a detailed biostratigraphy and C-isotope stratigraphy, and outline the paleoenvironmental conditions recorded during the early stages of the Taxy Episode. A disturbance has been
identified in the C-isotope record, called the IFeNE (Intra-Feradianus negative C-excursion), which
is coeval with environmental and biotic changes that predate the well-known ISNE (Intra-Sarasini
negative C-excursion). The combined analysis of nannofossil associations, C-isotopes, major and
trace elements, and biomarker distributions indicates a separate episode of warming heralding the
ISNE, resulting in the acceleration of the hydrological cycle and a consequent increase in continental
inputs and the fertilization of surface waters. The origin of the Taxy Episode (the IFeNE and ISNE)
has been related to orbital factors (high-eccentricity cycles), and to a global increase in volcanism,
probably related to the early phases of the Ontong Java Plateau.},
organization = {Consejería de Transformación Económica, Industria,
Conocimento y Universidades (P20_00783 Project)},
organization = {Research Group RNM-200 (Junta de Andalucía, Spain)},
organization = {Research Project FEDER- UJA 1265149 (Universidad de Jaén)},
publisher = {MDPI},
keywords = {Paleoenvironments},
keywords = {Early cretaceous},
keywords = {Calcareous nannofossils},
keywords = {C-isotopes},
keywords = {Elements},
keywords = {Biomarkers},
keywords = {Taxy EEC},
title = {New Evidence for an Episode of Accelerated Environmental Change in the Late Barremian: Geochemical and Paleontological Records from the Subbetic Basin (Western Tethys},
doi = {10.3390/geosciences14070187},
author = {de Gea, Ginés A. and Castro, José Manuel and Company Sempere, Miguel and O'Dogherty, Luis and Sandoval Gabarrón, José and Quijano, María Luisa and Sequero, Cristina and Froehner, Sandro and Aguado, Roque},
}