Nicolas Thibault
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View article: Upper Cretaceous (upper Turonian – lower Campanian) calcareous nannofossils and carbon isotopes from Seaford Head (southern England): Critical appraisal of biozones and correlation to GSSPs
Upper Cretaceous (upper Turonian – lower Campanian) calcareous nannofossils and carbon isotopes from Seaford Head (southern England): Critical appraisal of biozones and correlation to GSSPs Open
View article: Astronomical calibration of the middle Cambrian in Baltica: Global carbon cycle synchronization and climate dynamics
Astronomical calibration of the middle Cambrian in Baltica: Global carbon cycle synchronization and climate dynamics Open
The Alum Shale Formation of Baltica preserves one of the most continuous and fossil-rich records of the Cambrian, making it a key sedimentary archive for refining global chronostratigraphy, reconstructing carbon cycle perturbations, and as…
View article: GC Insights: Designing for full-phase inquiry in virtual fieldwork – upper secondary school students’ exploration of extinction events
GC Insights: Designing for full-phase inquiry in virtual fieldwork – upper secondary school students’ exploration of extinction events Open
When designing virtual field courses it is challenging to create a truly explorative course element. In relation to theories of student learning, this has been problematised, and more inquiry and student-centred virtual fieldwork has been …
View article: The Cretaceous World
The Cretaceous World Open
The Cretaceous System was first established by Jean Baptiste Julien d'Omalius d'Halloy based on his geological mapping of France and the adjacent areas of the Low Countries and Northern Italy. His map, which was published in 1822, has a le…
View article: Introduction to the Cretaceous System: regional studies
Introduction to the Cretaceous System: regional studies Open
The Cretaceous System was first established by Jean Baptiste Julien d'Omalius d'Halloy based on his geological mapping of France and the adjacent areas of the Low Countries and Northern Italy. His map, which was published in 1822, has a le…
View article: Integrated surface-subsurface reservoir zonation of the early Bartonian nummulitic limestone in central Tunisia and eastern Tunisian offshore
Integrated surface-subsurface reservoir zonation of the early Bartonian nummulitic limestone in central Tunisia and eastern Tunisian offshore Open
The Early Bartonian Reneiche/Siouf member is one of the primary conventional carbonate oil/gas reservoirs to be assessed in Tunisia that demands detailed evaluation. Accurate zonation and modeling of this reservoir require an integrated ap…
View article: Multidisciplinary study on the stratigraphy of the upper Cretaceous-Paleogene successions in the western Tajik Basin, Uzbekistan
Multidisciplinary study on the stratigraphy of the upper Cretaceous-Paleogene successions in the western Tajik Basin, Uzbekistan Open
View article: Combined cadmium and chromium isotopes record a collapse of bioproductivity across the Cretaceous—Paleogene boundary in the Danish basin
Combined cadmium and chromium isotopes record a collapse of bioproductivity across the Cretaceous—Paleogene boundary in the Danish basin Open
Cadmium (Cd) isotope signatures (δ114Cd) deduced from modern and ancient marine deposits are often used as a proxy for bioproductivity and for micronutrient cycling, whereas chromium (Cr) isotope signatures (δ53Cr) are used as a potential …
View article: Change of the locus of organic carbon burial in the aftermath of the Toarcian hyperthermal event: Patterns and drivers
Change of the locus of organic carbon burial in the aftermath of the Toarcian hyperthermal event: Patterns and drivers Open
Carbon cycle-climate dynamics were nonlinear through Earth’s history, driven by changes in internal and external forcing processes acting on various geological timescales. This study focuses on determining the relationship between vo…
View article: Linking the PETM and North Atlantic Volcanism Using Tellurium in Sediments
Linking the PETM and North Atlantic Volcanism Using Tellurium in Sediments Open
View article: Integrated Surface-Subsurface Rock Zonation of the Early Bartonian Reservoir in Central Tunisia and Eastern Tunisian Offshore
Integrated Surface-Subsurface Rock Zonation of the Early Bartonian Reservoir in Central Tunisia and Eastern Tunisian Offshore Open
View article: The Late Maastrichtian Rørdal Member (Denmark): a remarkable window of climatic, environmental and biotic changes at orbital timescales
The Late Maastrichtian Rørdal Member (Denmark): a remarkable window of climatic, environmental and biotic changes at orbital timescales Open
The Late Maastrichtian Rørdal Member of the Møns Klint Formation is a remarkable lithological unit of the Danish Basin, characterized by chalk–marl cyclicity, standing out from pure Maastrichtian white chalk within the Chalk Group. A cyclo…
View article: Litho- and biostratigraphy of the early Eocenelarger benthic foraminifera-dominated carbonates of the central Tethys domain, Zagros Foreland Basin, SW Iran
Litho- and biostratigraphy of the early Eocenelarger benthic foraminifera-dominated carbonates of the central Tethys domain, Zagros Foreland Basin, SW Iran Open
The Early Paleogene Tethyan domain saw the development of large platform carbonates rich in large benthic foraminifera (LBF), of which the Taleh Zang Formation in Lurestan Basin, SW Iran, represents an excellent example. The LBF assemblage…
View article: Benthic biota (nummulites) response to a hyperthermal event: Eccentricity-modulated precession control on climate during the middle Eocene warming in the Southern Mediterranean
Benthic biota (nummulites) response to a hyperthermal event: Eccentricity-modulated precession control on climate during the middle Eocene warming in the Southern Mediterranean Open
View article: A revised calcareous nannofossil biozonation for the Lower Jurassic (Hettangian–Lower Pliensbachian) of NW Europe
A revised calcareous nannofossil biozonation for the Lower Jurassic (Hettangian–Lower Pliensbachian) of NW Europe Open
The Mochras core, UK, an historic reference site for the study of Early Jurassic cal-careous nannofossils, has been reinvestigated here across the Hettangian to Lower Pliensbachian. Both relative and absolute abundances of 24 calcareous na…
View article: On the occurrence of rare nannoliths (calcareous nannofossils) in the Early Jurassic and their implications for the end‐Triassic mass extinction
On the occurrence of rare nannoliths (calcareous nannofossils) in the Early Jurassic and their implications for the end‐Triassic mass extinction Open
A peculiar record of previously undescribed and/or rarely described nannoliths from the Hettangian to lower Pliensbachian of the Llanbdr (Mochras Farm) core, Wales (UK) is documented here. Some of the observed morphotypes are assigned to d…
View article: Cyclostratigraphic calibration of the Miaolingian Series (Middle Cambrian, Southern Scandinavia, Sweden)
Cyclostratigraphic calibration of the Miaolingian Series (Middle Cambrian, Southern Scandinavia, Sweden) Open
The Cambrian Period recorded critical evolutionary events and geochemical changes. These changes, such as the “Cambrian Explosion” (Briggs, 2015; Peng et al., 2020) and the “Cambrian Substrate Revolution” (Máng…
View article: Climatic and environmental changes in the North Sea Basin during the Early Miocene
Climatic and environmental changes in the North Sea Basin during the Early Miocene Open
The Miocene Climatic Optimum (~17 to 14 Million years ago) has recently gained attention as a future climate analogue. However, the number of climatic records from the northern high and middle latitudes is very limited, so the global impac…
View article: PETM onset triggered by intense volcanism in the North Atlantic: evidence from tellurium
PETM onset triggered by intense volcanism in the North Atlantic: evidence from tellurium Open
The Paleocene – Eocene Thermal Maximum (PETM) was a global hyperthermal event during which temperatures increased by 6 - 8° C within a few thousand years at the Paleocene - Eocene boundary, and lasted about 250 ka resulting in o…
View article: Comment on egusphere-2023-36
Comment on egusphere-2023-36 Open
Abstract. There is a temporal correlation between the peak activity of the North Atlantic Igneous Province (NAIP) and the Paleocene–Eocene Thermal Maximum (PETM), suggesting that the NAIP may have initiated and/or prolonge…
View article: The Global Boundary Stratotype Section and Point (GSSP) of the Campanian Stage at Bottaccione (Gubbio, Italy) and its Auxiliary Sections: Seaford Head (UK), Bocieniec (Poland), Postalm (Austria), Smoky Hill, Kansas (U.S.A), Tepayac (Mexico)
The Global Boundary Stratotype Section and Point (GSSP) of the Campanian Stage at Bottaccione (Gubbio, Italy) and its Auxiliary Sections: Seaford Head (UK), Bocieniec (Poland), Postalm (Austria), Smoky Hill, Kansas (U.S.A), Tepayac (Mexico) Open
Following the unanimous vote of the Executive Committee of International Union of Geological Sciences in October 2022, the Global boundary Stratotype Section and Point for the base of the Campanian Stage is confirmed as the magnetic polari…
View article: Petrography and geochemical analysis of Arctic ikaite pseudomorphs from Utqiaġvik (Barrow), Alaska
Petrography and geochemical analysis of Arctic ikaite pseudomorphs from Utqiaġvik (Barrow), Alaska Open
Ikaite and pseudomorphs thereafter (“glendonites”) are a potentially powerful tool for palaeoclimatic studies, as a low-temperature proxy. However, much uncertainty still surrounds the drivers of ikaite formation, in particular prerequisit…
View article: Imprint of Deccan volcanism and changes in pelagic carbonate production across the Cretaceous – Paleogene boundary section of Nye Kløv (N. Denmark)
Imprint of Deccan volcanism and changes in pelagic carbonate production across the Cretaceous – Paleogene boundary section of Nye Kløv (N. Denmark) Open
View article: PETM Onset Triggered by Intense Volcanism in the North Atlantic Revealed by Tellurium
PETM Onset Triggered by Intense Volcanism in the North Atlantic Revealed by Tellurium Open
View article: Severe changes in the marine environment across the Cretaceous—Paleogene boundary in the Danish Basin: Constraints from the combined Cd-Cr isotope system
Severe changes in the marine environment across the Cretaceous—Paleogene boundary in the Danish Basin: Constraints from the combined Cd-Cr isotope system Open
View article: Middle Eocene to early Oligocene biostratigraphy in the SW Neo-Tethys (Tunisia): Large-scale correlations using calcareous nannofossil events and paleoceanographic implications
Middle Eocene to early Oligocene biostratigraphy in the SW Neo-Tethys (Tunisia): Large-scale correlations using calcareous nannofossil events and paleoceanographic implications Open
View article: Carbon isotopes, palynology and stratigraphy of the Santonian–Campanian boundary: The GSSP auxiliary sections, Seaford Head (England) and Bocieniec (Poland), and correlation between the Boreal and Tethyan realms
Carbon isotopes, palynology and stratigraphy of the Santonian–Campanian boundary: The GSSP auxiliary sections, Seaford Head (England) and Bocieniec (Poland), and correlation between the Boreal and Tethyan realms Open
This is the final version. Available on open access from Elsevier via the DOI in this record
View article: Morphometric changes in two Late Cretaceous calcareous nannofossil lineages support diversification fueled by long-term climate change
Morphometric changes in two Late Cretaceous calcareous nannofossil lineages support diversification fueled by long-term climate change Open
Morphometric changes have been investigated in the two groups of calcareous nannofossils, Cribrosphaerella ehrenbergii and Microrhabdulus undosus across the Campanian to Maastrichtian of the Zagros Basin of Iran. Results reveal a common ep…
View article: Early Jurassic coccolith diversification and response to pre-Toarcian environmental changes: A perspective from the Paris Basin
Early Jurassic coccolith diversification and response to pre-Toarcian environmental changes: A perspective from the Paris Basin Open
The early Jurassic saw large fluctuations in global temperature, sea-level and bottom-water oxic conditions prior to the Toarcian-Oceanic Anoxic Event (T-OAE), in several oceanic basins of NW Europe. Links between such changes, ocean nutri…
View article: Evolution of the Eocene shallow carbonate platform in Tunisia: Carbon isotopes stratigraphy and petroleum implications
Evolution of the Eocene shallow carbonate platform in Tunisia: Carbon isotopes stratigraphy and petroleum implications Open