Article
Geology
Mary Grace Moran, John Holbrook, Nadav G. Lensky, Liran Ben Moshe, Ziv Mor, Haggai Eyal, Yehouda Enzel
Summary: Geological research on the Dead Sea's underwater and terrestrial environments reveals century-scale sequences that accurately record medieval and modern periods, confirming the existence of century-scale sedimentary sequences. These findings pose a challenge to sequence stratigraphy as they often fall below seismic resolution, may resemble higher-order composite sequences, and complicate the definition of anchor sequences within the hierarchy.
Article
Geosciences, Multidisciplinary
Maria Clara Meneses Lourenco, Emanuel Ferraz Jardim De Sa, Valeria Centurion Cordoba, Leonardo Muniz Pichel
Summary: The study focuses on revealing the geological structural features in Northeastern Brazil during the Early Cretaceous, emphasizing the association between rifting activities and the opening of the South Atlantic.
MARINE AND PETROLEUM GEOLOGY
(2021)
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)
Review
Geology
Stefano Vitale, Sabatino Ciarcia
Summary: This study presents a review of the tectono-stratigraphic evolution of the Maastrichtian-Miocene period in the southern Apennines, focusing on the rift event that dismembered the Apennine and Apulian platforms. The study describes the sedimentation patterns, including calciclastic supply and drowning of shallow-water realms, along with a comparison with other regions like Sicily and Dinarids. The reconstructed paleogeographic map shows the re-emergence of the platforms surrounded by slope-to-deep basin sectors.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geosciences, Multidisciplinary
J. Hovikoski, M. Olivarius, J. A. Bojesen-Koefoed, S. Piasecki, P. Alsen, M. B. W. Fyhn, I. Sharp, M. Bjerager, H. Vosgerau, S. Lindstrom, C. Bjerrum, J. Ineson
Summary: The Late Jurassic-Early Cretaceous interval experienced a prolonged marine deoxygenation period, with intermittent anoxia in the Kimmeridgian and sustained anoxia or euxinia in the middle Volgian-early Ryazanian. Protracted rifting and localized seafloor topography were major drivers of seafloor deoxygenation and current funnelling and amplification during the Jurassic-Cretaceous transition. Spatial distribution of seaway current activity and dysoxia, anoxia and euxinia varied, allowing coexistence of fully oxygenated and anoxic pockets.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2023)
Article
Geology
Jozef Michalik, Jacek Grabowski, Otilia Lintnerova, Daniela Rehakova, Simon Kdyr, Petr Schnabl
Summary: An integrated study of micro- and nannoplankton distribution, O and C isotopes, and palaeomagnetic record of nine Carpathian sections provided a key interpretation tool to characterize the Jurassic-Cretaceous (J/K) boundary transition. The study distinguished biostratigraphic zones correlated with stable isotopes and magnetostratigraphy, and identified the Alpina Event as a marker of the J/K boundary.
CRETACEOUS RESEARCH
(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
Nathan P. Gardiner, Mike Hall
Summary: Compression during normal continental-oceanic subduction leads to the development of a rugose subduction wedge landward of the trench within the marine forearc. Second order subduction events can disrupt these processes over several millions of years and elicit depositional responses that are discordant within the forearc stratigraphy. The synchronicity, long-term cyclicity and regional extent of these stratigraphic changes indicate that regional tectonism underpinned deposition.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geology
Nils Schlueter, Frank Wiese, Manuel Diaz-Isa, Tobias Puettmann, Ireneus Walaszczyk
Summary: This article describes eight echinoid species found in Upper Cretaceous marl-limestone alternations from a temporary outcrop near the village of Mompia in northern Cantabria, Spain. Most of the reported echinoids are likely endemic to the working area. An integrated stratigraphic approach using ammonites, inoceramid bivalves, calcareous nannofossils, and stable carbon isotopes localizes the echinoid assemblage in the upper middle and lower upper Santonian.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Liubov Bragina, Nikita Bragin, Efthymios Tsiolakis, Vasilis Symeou, Nikolaos Papadimitriou, Polina Proshina
Summary: The Perapedhi Formation in the Akamas Peninsula of Cyprus contains well-preserved Upper Cretaceous radiolarian assemblage, indicating a possible reconsideration of its previous Campanian age conclusion. The age of the basal horizons of the Perapedhi Formation can vary significantly, showing a diachronous character of the lower boundary of the formation.
CRETACEOUS RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Zhiwu Li, Peter J. J. Kamp, Shugen Liu, Ganqing Xu, Kui Tong, Martin Danisik, Zijian Wang, Jinxi Li, Bin Deng, Bo Ran, Yuehao Ye, Wenhui Wu
Summary: The current structural model for the Longmen Shan belt is an asymmetric orogenic wedge with northwest-dipping thrust faults. The debate lies in how the exhumation of this margin was partitioned into Cretaceous versus Late Cenozoic components. New low-temperature thermochronology data suggests two episodes of exhumation, one during the Late Cretaceous and the other during the Late Cenozoic. A new feature is the large amount of exhumation southeast of the Longriba Fault System, diminishing the asymmetric character of the current structural model.
EARTH-SCIENCE REVIEWS
(2023)
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
Geology
Qianyou Wang, Yaohua Li, James E. P. Utley, Joe Gardner, Bei Liu, Jianfang Hu, Longyi Shao, Xin Wang, Fenglin Gao, Dadong Liu, Haibin Li, Zhenxue Jiang, Richard H. Worden
Summary: This study reveals the relationship between the burial of continental carbon and lake evolution and paleoclimate change through the investigation of the Shahezi Formation. The results show that a large amount of terrestrial organic carbon is buried in lake sediments through depositional processes, which has been overlooked in previous studies. There is a direct correlation between depositional facies, chemical weathering proxies, and the burial of organic carbon. Moreover, tectonic control plays an important role in the evolution of rift basins, influencing the change in carbon sources and concentrations.
SEDIMENTARY GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
J. C. Meza-Cala, F. Tsikalas, J. Faleide, M. M. Abdelmalak
Summary: The study of the late Mesozoic-Cenozoic tectono-stratigraphic evolution of the northern Lofoten-Vesteralen margin offshore northern Norway was conducted using a combination of 2D multi-channel seismic profiles, 3D seismic survey, and potential field and well data. The analysis revealed distinct along-margin basin segmentation, with five main rift phases and eight mapped fault families identified, as well as compressional deformation features related to volcanic build-up and doming of Cenozoic successions. The study highlighted the essential nature of the northern Lofoten-Vesteralen margin in understanding the tectono-stratigraphic evolution of the NE Atlantic margins.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Sherif Farouk, Khaled Al-Kahtany, Mohamed Tawfik
Summary: High-resolution sequence stratigraphy of mixed siliciclastic-carbonate rocks in the Coniacian-Campanian succession in Sinai (Egypt) was derived through analysis of biostratigraphy, facies types and distribution, lithofacies associations, and bounding surfaces. The study identified multiple foraminiferal species, facies associations, and sequence boundaries, indicating simultaneous eustatic and tectonic effects in Egypt and surrounding countries.
MARINE AND PETROLEUM GEOLOGY
(2021)