A5020907476- Geology and Paleoclimatology Research
- Geological and Geophysical Studies Worldwide
- Evolution and Paleontology Studies
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Archaeological and Geological Studies
- Archaeological and Historical Studies
- Marine Biology and Ecology Research
- Pleistocene-Era Hominins and Archaeology
- Paleontology and Evolutionary Biology
- Geological and Geochemical Analysis
- Coral and Marine Ecosystems Studies
- Geological and Tectonic Studies in Latin America
- Marine and coastal plant biology
- Maritime and Coastal Archaeology
- Calcium Carbonate Crystallization and Inhibition
- Hydrocarbon exploration and reservoir analysis
- Karst Systems and Hydrogeology
- Geomagnetism and Paleomagnetism Studies
- Methane Hydrates and Related Phenomena
- Ichthyology and Marine Biology
- Ocean Acidification Effects and Responses
- Isotope Analysis in Ecology
- Medieval Architecture and Archaeology
- Clay minerals and soil interactions
University of the Basque Country
2013-2024
Ente Vasco de la Energía
2009
Universidad de Huelva
2000-2001
Birger Schmitz, Victoriano Pujalte, Eustoquio Molina, Simonetta Monechi, Xabier Orue-Etxebarria, Robert P. Speijer, Laia Alegret, Estibaliz Apellaniz, Ignacio Arenillas, Marie-Pierre Aubry, Juan-Ignacio Baceta, William A. Berggren, Gilen Bernaola, Fernando Caballero, Anne Clemmensen, Jaume Dinarès-Turell, Christian Dupuis, Claus Heilmann-Clausen, Asier Hilario Orús, Knox, Maite Martín-Rubio, Silvia Ortiz, Aitor Payros, Maria Rose Petrizzo, Katharina von Salis, Jorinde Sprong, Etienne...
Research Article| July 01, 2007 Evidence of an abrupt environmental disruption during the mid-Paleocene biotic event (Zumaia section, western Pyrenees) Gilen Bernaola; Bernaola 1Departamento de Estratigrafía y Paleontología, Facultad Ciencia Tecnología, Universidad del País Vasco, Apartado correos 644, 48080 Bilbao, Spain Search for other works by this author on: GSW Google Scholar Juan Ignacio Baceta; Baceta Xabier Orue-Etxebarria; Orue-Etxebarria Laia Alegret; Alegret 2Área...
The benthic foraminiferal turnover and extinction event (BEE) associated with the negative carbon isotope excursion (CIE) across Paleocene-Eocene Thermal Maximum (PETM) is analyzed in Zumaia section (Spain), one of most complete expanded deep-water sequences known worldwide.New biostratigraphic, paleoecologic, paleoenvironmental data on foraminifera are correlated to information planktic calcareous nannofossil order evaluate possible causes consequences PETM.Gradual but rapid 18% species...
Abstract. The Paleocene–Eocene thermal maximum (PETM) is represented in numerous shallow and deep marine sections of the south–central western Pyrenees by a 2–4 m thick unit (locally up to 20 m) clays or marly intercalated within carbonate-dominated succession. This records massive input into Pyrenean Gulf fine-grained terrestrial siliciclastics, attributed an abrupt hydrological change during PETM. However, nature such remains controversial. Here we show that, addition deposits, large...
It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between Thanetian and Ilerdian stages, but its possible correlation with Paleocene-Eocene thermal maximum (PETM) was unsuspected until work of Baceta (1996), controversial ever since. After summarizing history this controversy, we present information from three new sections conclusively resolve issue, all them placed less than 2 km to east classical Campo section in southern Pyrenees. In these...
The succession of the Maiella massif is analyzed, focusing on colonial-coral bearing deposits occurring just below and immediately above Cretaceous/Paleogene boundary. Upper Cretaceous material dominated by rudists larger benthic foraminifera with a significant contribution from colonial corals. In Lower Paleocene, first two groups are absent corals dominate skeletal assemblage. This supports hypothesis good recovery carbonate production following end extinction their overall resilience....
The Ilerdian Stage was created by Hottinger and Schaub in 1960 to accommodate a significant phase the evolution of larger foraminifera not recorded northern European basins, has since been adopted most researchers working on shallow marine early Paleogene deposits Tethys domain. One defining criteria stage is major turnover foraminifera, marked FO’s Alveolina vredenburgi (formerly A. cucumiformis) Nummulites fraasi. There now conclusive evidence that this coeval with onset Carbon Isotope...
A high resolution calcareous nannofossil biostratigraphic analysis was carried out across the Danian/Selandian transition at Zumaia section (western Pyrenees). In studied interval, spanning Varol’s Subzone NTp7a to Zone NTp9, a sequence of 10 distinct events is identified. The recognition these bioevents confirms continuous and expanded character allows an accurate correlation D/S between Zumaia, Danish reference sections more southerly Tethys sections. According this correlation, abrupt...
A taxonomic study of the larger foraminifera found in Paleocene rocks from Pyrenean basin has led to description sixty taxa including two new species: Alveolina korresensis and Valvulineria bacetai. In this work, we present a chronostratigraphic recalibration Shallow Benthic Zones (SBZ 1 SBZ 4) based on correlation with calcareous nannofossil planktic biozones, all integrated within stratigraphic framework platform depositional sequences established for whole domain. The samples were...
Terra Nova, 24, 477–486, 2012 Abstract The early Cenozoic, which is punctuated by several negative carbon isotope excursions (CIEs), was a time of climatic and oceanographic transition from ‘Greenhouse’ to ‘Icehouse’ conditions. occurrence ∼0.5‰ CIE starting at the top Chron C27n (TC27N) reconfirmed with stable data Zumaia (Spain) Bjala (Bulgaria) localities. Spectral analysis on respective carbonate/magnetic susceptibility proxy records substantiates orbital cyclostratigraphy allowing...