Article
Geosciences, Multidisciplinary
James S. Eldrett, Manuel Vieira, Liam Gallagher, Matthew Hampton, Maarten Blaauw, Peter K. Swart
Summary: The study presents a highly resolved record of stable carbon isotope values from Late Cretaceous to Palaeogene, integrating carbon isotope stratigraphy with biostratigraphic events to identify major Stage and sub-Stage boundaries. The research provides a long-term and near-continuous stratigraphic record of the Late Cretaceous and earliest Palaeogene in the Central North Sea basin, punctuated by short duration hiatal intervals and a longer hiatus where most of the Cenomanian is missing at the location.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
A-C Sarr, Y. Donnadieu, M. Laugie, J-B Ladant, B. Sucheras-Marx, F. Raisson
Summary: This study used an Earth System Model to simulate the cyclicity of marine sediment deposits during hothouse climate periods and found that Earth's orbit variations have a significant impact on the ocean's oxygenation state. Especially in enclosed and already poorly oxygenated basins, orbital changes can lead to up to 50% of the water volume becoming anoxic.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Ji-Eun Kim, Thomas Westerhold, Laia Alegret, Anna Joy Drury, Ursula Roehl, Elizabeth M. Griffith
Summary: The marine biological carbon pump, which sequesters carbon from the atmosphere, is influenced by orbital variations in solar insolation. This study analyzes elemental barium in deep-sea sediments from Shatsky Rise in the tropical Pacific to understand the impact of these variations during the Late Cretaceous. The results show that the carbon dynamics in the tropical Pacific were influenced by seasonal insolation, specifically precession, and suggest that changes in water column stratification, upwelling intensity, and nutrient fluxes played a role in this process.
CLIMATE OF THE PAST
(2022)
Article
Geosciences, Multidisciplinary
James S. Eldrett, Manuel Vieira
Summary: This study generated a stable carbon isotope profile of the Early Cretaceous to Paleogene from well 30/2a-7 in the Central North Sea, providing an integrated stratigraphic framework incorporating calcareous nannofossil biostratigraphy and sequence stratigraphy. By correlating with similar records from other realms, it offers a chronostratigraphic framework for hydrocarbon play elements and carbon capture projects.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geography, Physical
Seung Choi, Noe-Heon Kim, Hyo-Im Kim, Jin Jung Kweon, Sung Keun Lee, Shukang Zhang, David J. Varricchio
Summary: Turtles are the only amniotes that lay aragonitic eggs. A discovery in Montana, USA, confirmed the existence of aragonite in turtle eggs dating back to at least the Campanian period, around 76 million years ago. This finding supports the hypothesis that aragonitic eggshell is a unique feature of all turtles and suggests high-quality, unaltered paleoenvironmental information can be obtained from localities with aragonitic turtle eggs.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
James S. Eldrett, Steven C. Bergman, Christian Heine, Paul Edwards, Marcus Jakeman, Nick Miles, Bastian Hambach, Steven M. Bohaty, Megan R. Wilding
Summary: The study focuses on the early Cretaceous rift basins of the South Atlantic and investigates the timing and relationship between source rock and reservoir deposition and rift evolution. Stable carbon isotope records were generated from two exploration wells offshore of Gabon to determine the age of salt deposition. The results were compared to other published sections and provide new insights into the timing of rifting and salt deposition in the South Atlantic passive margin.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geology
Ian Jarvis, Martin A. Pearce, Johannes Monkenbusch, Agata Jurkowska, Clemens Ullmann, Zofia Dubicka, Nicolas Thibault
Summary: This study describes the stratigraphy and palynology of the Newhaven Chalk in the upper Santonian-lower Campanian age at Seaford Head, England. The carbon-isotope event (CIE) stratigraphy of the section is refined using a new high-resolution bulk-sediment carbonate carbon stable-isotope (813Ccarb) curve. The results are compared to a palynological study at Bocieniec, Poland. The study establishes a stratigraphic framework and correlations to sections in England, France, Germany, and Italy using carbon isotope curves and biostratigraphic records.
CRETACEOUS RESEARCH
(2023)
Article
Paleontology
Youssef S. Bazeen, Islam El-Sheikh, El Sayed M. Moneer
Summary: The foraminiferal assemblages of the upper Campanian-Maastrichtian studied in the Wadi Tarfa section of the Egyptian North Eastern Desert provide insights into paleoenvironments and relative sea-level changes. By analyzing the benthic foraminiferal dataset, paleobathymetry, oxygenation levels, and trophic conditions were quantified. The inferred foraminiferal-based sea-level curve indicates fluctuating paleodepths and distinguishes third-order sequences, with the development showing a greater control of eustasy and regional impact of the Syrian Arc Orogeny on sea-level events.
MARINE MICROPALEONTOLOGY
(2021)
Article
Geology
Enelise Katia Piovesan, Osvaldo Jose Correia Filho, Robbyson Mendes Melo, Luiz Drude Lacerda, Rodolfo Otavio Dos Santos, Allysson Pontes Pinheiro, Fabiana Rodrigues Costa, Juliana Manso Sayao, Alexander Wilhelm Armin Kellner
Summary: A biostratigraphic and paleoenvironmental analysis was conducted on the Campanian-Maastrichtian deposits on The Naze, Antarctica, based on foraminiferal assemblages, lithofacies analysis, and Hg/TOC data. The study revealed a sedimentary association of lithofacies and an inference of the age of the interval to be from the Early Campanian to the Late Maastrichtian. The absence of Hg-TOC unassociated excursions suggested regional oceanic processes as the major environmental change driver.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Paulo M. Brito, David M. Martill, Ian Eaves, Roy E. Smith, Samuel L. A. Cooper
Summary: An isolated, crushed ossified lung fossil of a mawsoniid coelacanth was reported from the uppermost Cretaceous of Oued Zem, Morocco. This specimen represents the last record of a coelacanth before their pseudo-extinction at the end of the Mesozoic, and it is also the first record of a marine coelacanth in the Mesozoic of Morocco. The large size of the lung suggests a fish estimated at between 3.65 m and 5.52 m total body length.
CRETACEOUS RESEARCH
(2021)
Article
Multidisciplinary Sciences
Ariana Paulina-Carabajal, Francisco T. Barrios, Ariel H. Mendez, Ignacio A. Cerda, Yuong-Nam Lee
Summary: Recent discoveries in southern South America have improved the Late Cretaceous dinosaur record, with findings from Chorrillo and Cerro Fortaleza formations adding ankylosaur remains to the previously recorded dinosaur fauna. A site in Cerro Fortaleza Formation yielded isolated teeth and osteoderms from Abelisauridae, Titanosauria, Nodosauridae, and Peirosauridae, providing valuable information on the biodiversity of the region during the Campanian-Maastrichtian age. This site also marks the first record of ankylosaurs and the most southerly record of Peirosauridae in South America.
Article
Multidisciplinary Sciences
Ross N. Mitchell, Christopher J. Thissen, David A. D. Evans, Sarah P. Slotznick, Rodolfo Coccioni, Toshitsugu Yamazaki, Joseph L. Kirschvink
Summary: A new high-resolution paleomagnetic record from two overlapping stratigraphic sections in Italy provides evidence for a 12-degree true polar wander oscillation from 86 to 78 million years ago, with the greatest excursion at 84-82 million years ago. This challenges the notion of the spin axis being largely stable over the past 100 million years and represents the most recent large-scale TPW documented.
NATURE COMMUNICATIONS
(2021)
Article
Geochemistry & Geophysics
Pauline Corentin, Emmanuelle Puceat, Pierre Pellenard, Nicolas Freslon, Michel Guiraud, Justine Blondet, Thierry Adatte, Germain Bayon
Summary: This study explores the potential links between the uplift of the Brazilian margin, silicate weathering, and climate evolution during the late Cretaceous. The research suggests that the marked increase of silicate weathering intensity in southeast Brazil during this period could have contributed to the late Cretaceous cooling. The exposure of new high-elevation regions favored enhanced precipitation and chemical weathering, leading to a decrease in atmospheric CO2.
Article
Geology
Johan Vellekoop, Pim Kaskes, Matthias Sinnesael, Jarno Huygh, Thomas Dehais, John W. M. Jagt, Robert P. Speijer, Philippe Claeys
Summary: This study provides the first high-resolution stable carbon isotope stratigraphy and chemostratigraphy of the Maastrichtian period, offering accurate data for the age assessment and global correlation of Maastrichtian strata.
NEWSLETTERS ON STRATIGRAPHY
(2022)
Article
Geology
Luis-Andres Guerrero-Murcia, Javier Helenes, Mercedes di Pasquo, James Martin
Summary: This study presents the results of a quantitative and qualitative analysis of dinoflagellate cysts in outcrop samples from the Snow Hill Island Formation in James Ross Island, Antarctica. The assemblages of dinoflagellate cysts were abundant and mainly composed of gonyaulacoid taxa. Based on the presence and absence of certain species, the age of the lower and upper strata was estimated to be late Campanian and early Maastrichtian, respectively.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Sietske J. Batenburg, Oliver Friedrich, Kazuyoshi Moriya, Silke Voigt, Cecile Cournede, Iris Moebius, Peter Blum, Andre Bornemann, Jens Fiebig, Takashi Hasegawa, Pincelli M. Hull, Richard D. Norris, Ursula Roehl, Philip F. Sexton, Thomas Westerhold, Paul A. Wilson
NEWSLETTERS ON STRATIGRAPHY
(2018)
Article
Geology
Alexandra Hellwig, Silke Voigt, Andreas Mulch, Konstantin Frisch, Alexander Bartenstein, Joerg Pross, Axel Gerdes, Thomas Voigt
Article
Geology
Mohammad J. Razmjooei, Nicolas Thibault, Anoshiravan Kani, Jaume Dinares-Turell, Emmanuelle Puceat, Samira Shahriari, Wieslawa Radmacher, Amir Mohammad Jamali, Clemens V. Ullmann, Silke Voigt, Theophile Cocquerez
CRETACEOUS RESEARCH
(2018)
Article
Geology
Konstantin Frisch, Silke Voigt, Thomas Voigt, Alexandra Hellwig, Verena Verestek, Yuki Weber
Article
Geosciences, Multidisciplinary
Verena Verestek, Erwin Appel, Konstantin Frisch, Silke Voigt
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2019)
Article
Geosciences, Multidisciplinary
Konstantin Frisch, Silke Voigt, Verena Verestek, Erwin Appel, Richard Albert, Axel Gerdes, Iris Arndt, Jacek Raddatz, Thomas Voigt, Yuki Weber, Sietske J. Batenburg
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2019)
Article
Marine & Freshwater Biology
J. Raddatz, J. Titschack, N. Frank, A. Freiwald, A. Conforti, A. Osborne, S. Skornitzke, W. Stiller, A. Rueggeberg, S. Voigt, A. L. S. Albuquerque, A. Vertino, A. Schroeder-Ritzrau, A. Bahr
Article
Geosciences, Multidisciplinary
Alicia Hou, Andre Bahr, Jacek Raddatz, Silke Voigt, Markus Greule, Ana Luiza Albuquerque, Cristiano M. Chiessi, Oliver Friedrich
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Geology
Silke Voigt, Tobias Puettmann, Joerg Mutterlose, Andre Bornemann, Ian Jarvis, Martin Pearce, Irek Walaszczyk
Summary: The study presents a new high-resolution carbon isotope curve from a limestone quarry in Germany, defining the Navigation Carbon Isotope Event relative to the Turonian-Coniacian boundary. Subsidiary positive delta C-13(carb) events can serve as regional markers and are correlated with the Bechary Bch-1 core in Bohemia. Analysis suggests a 100 kyr duration for the Navigation Event, with orbital control on carbon isotope variability confirmed by spectral analysis. Additionally, acme occurrences of calcareous nannofossil and organic-walled dinoflagellate cyst taxa provide potential additional markers for the stage boundary.
NEWSLETTERS ON STRATIGRAPHY
(2021)
Article
Geography, Physical
Eric Otto Walliser, Radek Vodrazka, Nils Hoeche, Silke Voigt, Bernd R. Schoene
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2020)
Article
Geology
Ian Jarvis, Martin Pearce, Tobias Puettmann, Silke Voigt, Irek Walaszczyk
Summary: New palynological and calcareous nannofossil records are presented for the Turoniane-Coniacian boundary section at Salzgitter-Salder, Germany, with the proposed base of the Coniacian Stage being the first appearance datum level of Cremnoceramus deformis erectus. The study demonstrates the correlation of the P. infusorioides Event between Germany, Czech Republic and England.
CRETACEOUS RESEARCH
(2021)
Article
Multidisciplinary Sciences
Nicolai Schleinkofer, Jacek Raddatz, David Evans, Axel Gerdes, Sascha Floegel, Silke Voigt, Janina Vanessa Buescher, Max Wisshak
Summary: Acesta excavata, a slow-growing bivalve from the Limidae family, shows compositional variability in elemental ratios, indicating strong vital effects and associations with seawater temperature and salinity. Additional techniques, such as clumped isotopes, are recommended to accurately determine and quantify these effects.
Article
Ecology
Nicolai Schleinkofer, David Evans, Max Wisshak, Janina Vanessa Buscher, Jens Fiebig, Andre Freiwald, Sven Harter, Horst R. Marschall, Silke Voigt, Jacek Raddatz
Summary: The geochemical signature of Hyrrokkin sarcophaga depends on the host organism it infests, with different hosts leading to different geological signals. Therefore, using its geochemical information to accurately reflect paleoenvironmental conditions requires consideration of its host information.
Article
Geochemistry & Geophysics
Thomas Voigt, Jonas Kley, Silke Voigt
Summary: In the Late Cretaceous, a compressional tectonic event impacted central Europe, with the timing of this event still being debated. By reconstructing the timing of basin reorganization using borehole data and thickness maps, it was found that the start of inversion happened 5 million years earlier than previously assumed. The difficulty in pinpointing the end of the Late Cretaceous compressional event in central Europe is attributed to regional uplift and salt migration affecting the signal of shifting marginal troughs.
Article
Geosciences, Multidisciplinary
Verena Verestek, Erwin Appel, Silke Voigt, Konstantin Frisch
FRONTIERS IN EARTH SCIENCE
(2018)