Article
Geology
Andy S. Gale, John W. M. Jagt, Stijn Goolaerts
Summary: A study describes large and robust pedunculate scalpellomorph cirripede barnacles from the Maastrichtian of Kalaat Senan, Tunisia, and their stratigraphical position. These findings provide insights into the evolution of North African cirripede assemblages during the early and late Maastrichtian, close to the Cretaceous-Paleogene boundary mass extinction.
CRETACEOUS RESEARCH
(2021)
Article
Paleontology
Sherif Farouk, Mahmoud Faris, Youssef S. Bazeen, Zaineb Elamri, Fayez Ahmad
Summary: A comprehensive stratigraphic framework for the upper Campanian-lower Maastrichtian succession in the Elles section of North-central Tunisia is presented, using an integrated approach of calcareous nannofossil and planktonic foraminiferal biostratigraphy along with carbon isotope stratigraphy. Seven delta C-13 events were identified for global correlation, with assessments made on the isochroneity and diachroneity of microplankton bioevents in relation to carbon isotope stratigraphy. The Campanian/Maastrichtian boundary was precisely positioned within the El Haria Formation at the base of delta C-13 event CMBc, providing important insights into the stratigraphic and biostratigraphic relationships in the studied interval.
MARINE MICROPALEONTOLOGY
(2021)
Article
Geography, Physical
Yadolah Ezampanah, Giovanna Scopelliti, Abbas Sadeghi, Mohammad Hossein Adabi, Amir Mohammad Jamali, Antonio Caruso, Hassan Mohseni, Mohammad Javad Razmjooei
Summary: The study in the western part of the Kopet-Dagh Basin conducted planktonic foraminiferal biostratigraphy and isotope stratigraphy analyses of Turonian-Maastrichtian deposits. The obtained stable carbon isotope profile correlates with other reference curves, revealing many Late Cretaceous events including Hitchwood, Navigation, Light Point, and others. The Turonian-Maastrichtian deposits show severe changes in sedimentation rate, hiatuses, and condensed intervals.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geology
Sami Riahi, Alfred Uchman
Summary: This paper describes the ichnology and sedimentology of the middle Berriasian sedimentary succession in Jebel Meloussi, Central Tunisia. The study reveals that the sedimentary succession records deltaic progradation and vertical stacking of thickening and coarsening-upward parasequences dominated by specific types of cross-stratification and trace fossils. The different trace fossils found in the mudstones and sandstones of the prodelta and delta-front provide insights into the depositional environment and processes, including high intensity storm events.
Article
Paleontology
Gebely Abdel-Maksoud Abu El-Kheir, Mohamed Korany Abdelgawad, Walid Gamal Kassab
Summary: The Maastrichtian deposits in Egypt and Africa have limited records of chelonioids, hindering understanding of their evolution and extinction during this period. The Dakhla Basin in Egypt has provided valuable fossils that help fill gaps in the history of African turtles and contribute to research on their evolution and extinction during the Late Cretaceous.
ACTA PALAEONTOLOGICA POLONICA
(2021)
Article
Geology
Rodrigo A. Otero, Mario E. Suarez
Summary: This study presents new material of ray-finned fishes from Upper Cretaceous strata in central Chile, including specimens of the genus Enchodus and teeth of Pachyrhizodus and indeterminate pachycormids. It provides a critical review of historical ray-finned fishes in the region and suggests that the latest Cretaceous actinopterygian diversity along the southeastern Pacific was more discrete and scarce than previously thought.
CRETACEOUS RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Svetlana A. Sycheva, Nikolay K. Anisyutkin, Olga S. Khokhlova
Summary: The study of the stratified Lower Paleolithic site of Bairaki reveals that human ancestors were present in the south of the East European Plain over a million years ago and inhabited the site for over 500 thousand years. Bairaki is the only known multilayered site of this early age in Eastern Europe.
Article
Geography, Physical
Joanne Muller, Christian Ercolani, Jennifer Collins, Shelby Ellis
Summary: Hurricanes have serious impacts on human lives and infrastructure. A study on the geologic record of intense hurricanes in Southwest Florida reveals that at least three storms made significant impact on the region between 1920 and 1960. Despite a lack of significant storm surge in the past 60 years, it is important for the public to recognize that several hurricanes occurring between 1920 and 1960 produced storm surges greater than 10 feet.
Article
Environmental Sciences
Marianne E. Dietz, Kam-biu Liu, Thomas A. Bianchette, Denson Smith
Summary: The study found that Hurricanes Gustav and Ike in 2008 left a 21 cm thick deposition layer on the coastal Louisiana, with distinct geochemical profiles indicating a strong influence of marine-derived elements during Gustav and a dominance of terrestrially-derived elements during Ike. This suggests that the storm deposits in each core were deposited through two distinct hydrological processes: a storm surge-driven marine intrusion event during Gustav, followed by a mixture of storm-surge and fluvial deposition resulting from Ike. The results highlight the importance of considering the role of fluvial freshwater deposition in hurricane-generated deposition in coastal environments.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2021)
Article
Paleontology
Jaroslav Samanek, Lothar H. Vallon, Radek Mikulas, Michal Vachek
Summary: The old brickyard Velka nad Velickou in the Czech Republic provides a unique insight into a Eocene deep-sea ichno-assemblage dominated by sequestrichnia. The tracemaker Chondrites intricatus is seen frequently penetrating the Zoophycos brianteus trace fossil and occurring preferentially on the surface of Zoophycos spreiten, indicating the secondary use of food-stowing. This close relationship between Chondrites and Zoophycos supports the hypothesis of sequestrichnial behavior of Zoophycos producer. Other fossils such as Helminthopsis tenuis, Tubulichnium mediterranensis, Scolicia strozzii, ?Dactyloidites isp., Megagrapton irregulare, and Planolites isp. are also found in this studied locality.
ACTA PALAEONTOLOGICA POLONICA
(2022)
Article
Geosciences, Multidisciplinary
Sherif Farouk, Sreepat Jain, Youssef S. Bazeen, Fayez Ahmad, Zaineb Elamri, Khaled Al-Kahtany, Ahmed Abdeldaim
Summary: Based on quantitative analysis of planktic foraminiferal species distribution and paleotemperature in the Late Cretaceous Elles section in central Tunisia, the paleoenvironmental changes are inferred. Four statistically significant intervals are identified, each characterized by different temperature, nutrient level, and water column stratification.
GEOLOGICAL JOURNAL
(2023)
Article
Geology
Samuel L. A. Cooper, Kyle J. Marson, Roy E. Smith, David Martill
Summary: Isolated jaw elements of pycnodont fishes are frequently found in the Moroccan Oulad Abdoun phosphate assemblages, with some of them possibly being regurgitalites. These regurgitalites are thought to have been partially digested in the gut before being expelled from the mouth of a larger vertebrate. These findings enhance our understanding of the intricate trophic food webs in the late Cretaceous of Morocco.
CRETACEOUS RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Ping Gao, Zhiliang He, Gary G. Lash, Qin Zhou, Xianming Xiao
Summary: The study presents the potential controls on silica enrichment in Lower Cambrian shale deposits in South China, indicating that factors like continental weathering, aeolian input, and biological activity may have influenced the excess silica concentrations. It is suggested that strong chemical weathering during warm, humid paleo-climate conditions led to the delivery of dissolved silica to the global ocean, while diminished aeolian input favored a silica-rich ocean during specific time periods. The interaction among paleo-climate fluctuations, increased nutrient delivery to the ocean, and redox variability was critical to the diversification of sponge spicules and the appearance of radiolarian during the Cambrian Explosion.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geology
Massimiliano Ghinassi, Oriol Oms, Marta Cosma, Alvise Finotello, Giovanni Munari
Summary: This study investigates Late Maastrichtian meandering-channel deposits in the Southern Pyrenees, Spain, revealing signs of tidal processes and providing crucial insights into the control of sedimentation by tides in inland areas.
Review
Geosciences, Multidisciplinary
Otmane Khalfaoui, Laurent Dezileau, Nadia Mhammdi, Fida Medina, Meryem Mojtahid, Otmane Raji, Hajar El Talibi, Samira Mellas, Jean-Philipe Degeai, Khalid El Khalidi, Maria Snoussi, Zourarah Bendahhou, Khadija Aboumaria
Summary: The paper reviews recent studies on sedimentary archives of coastal inundation events in Morocco. The authors identified 20 sites with traces of coastal inundation deposits along the Atlantic coast, while the Mediterranean side remains understudied. A major issue is the lack of chronological data for most of these deposits, which hinders the determination of the return period of these events. Understanding the past occurrences can help in preventing similar natural hazards.
Article
Geosciences, Multidisciplinary
Anis Gasmi, Cecile Gomez, Hedi Zouari, Antoine Masse, Danielle Ducrot
ARABIAN JOURNAL OF GEOSCIENCES
(2016)
Article
Geosciences, Multidisciplinary
Houcem Mzali, Hedi Zouari
ARABIAN JOURNAL OF GEOSCIENCES
(2012)
Article
Geosciences, Multidisciplinary
Sofien Alyahyaoui, Hedi Zouari
ARABIAN JOURNAL OF GEOSCIENCES
(2014)
Article
Geosciences, Multidisciplinary
Fehmy Belghouthi, Hedi Zouari, Rekaya-Selwa Jeddi
JOURNAL OF AFRICAN EARTH SCIENCES
(2019)
Article
Geochemistry & Geophysics
H. Gabtni, C. Jallouli, K. L. Mickus, H. Zouari, M. M. Turki
JOURNAL OF GEODYNAMICS
(2009)
Article
Geosciences, Multidisciplinary
Fehmy Belghouthi, Achref Zouari, Hedi Zouari
ARABIAN JOURNAL OF GEOSCIENCES
(2019)
Article
Geosciences, Multidisciplinary
Fehmy Belghouthi, Hedi Zouari
JOURNAL OF AFRICAN EARTH SCIENCES
(2019)
Article
Geosciences, Multidisciplinary
Houcem Mzali, Hakim Gabtni, Hedi Zouari, Mohamed Hadj Sassi, Jamel Gharsalli
COMPTES RENDUS GEOSCIENCE
(2007)
Article
Geosciences, Multidisciplinary
Houcem Mzali, Hedi Zouari
COMPTES RENDUS GEOSCIENCE
(2006)
Article
Geosciences, Multidisciplinary
H Gabtni, C Jallouli, KL Mickus, H Zouari, MM Turki
JOURNAL OF AFRICAN EARTH SCIENCES
(2006)
Article
Geochemistry & Geophysics
H Gabtni, C Jallouli, K Mickus, H Zouari, M Turki
PURE AND APPLIED GEOPHYSICS
(2005)
Article
Geosciences, Multidisciplinary
S Khomsi, M Bédir, H Zouari, MG Ben Jemia
COMPTES RENDUS GEOSCIENCE
(2004)
Article
Geosciences, Multidisciplinary
S Khomsi, M Bédir, MG Ben Jemia, H Zouari
COMPTES RENDUS GEOSCIENCE
(2004)
Review
Geochemistry & Geophysics
S Bouaziz, E Barrier, M Soussi, MM Turki, H Zouari