Article
Geochemistry & Geophysics
Mersad Moeini, Hossain Rahimpour-Bonab, Vahid Tavakoli
Summary: This study focuses on a detailed analysis of facies variations and paleoenvironmental reconstruction of the Sarvak Formation in Iran. Based on field observations and petrographical studies, 12 facies have been recognized and ascribed to six facies belts. The suggested conceptual model is an isolated platform surrounded by two ramps.
Article
Geosciences, Multidisciplinary
Jihad Hamd, Adrian Cerepi, Rudy Swennen, Corinne Loisy, Serge Galaup, Lea Pigot
Summary: This paper studies the sedimentary and diagenetic factors controlling the heterogeneity and petrophysical properties of carbonate reservoir systems. The research findings show that diagenetic processes such as dolomitization play a crucial role in the development of porosity and permeability in reservoir rocks.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geology
Alberto Perez-Lopez, Constantino Benedicto, Federico Orti
Summary: The eastern sector of the Mesozoic Iberian basin belongs to the 'Mediterranean type' Triassic, characterized by a stratigraphic record with two carbonate Muschelkalk units. The evolution of the platform morphology from an epicontinental platform to a lower energy rimmed shelf is depicted through the deposition of shallow-water carbonates and tidal/lagoon environments.
SEDIMENTARY GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Peter Soto-Kerans, Robert G. Loucks, Charles Kerans
Summary: This study focuses on a primarily oil-bearing hydrocarbon system in the Upper Glen Rose strata deposited in the Houston trough in eastern Texas. The depositional setting within the Houston trough was of deep-water origin, with grain-rich lithofacies derived from shallower shelf areas forming reservoirs such as Alabama Ferry and Fort Trinidad fields. The interpretation challenges previous assumptions, suggesting a new framework for exploring grainstone reservoirs in similar environments.
Article
Geology
Mohammad Rostamtabar, Mohammad Khanehbad, Mohamad Hosein Mahmoudy Gharaie, Asadollah Mahboubi, Mahmoud Hajian-Barzi
Summary: Petrographic studies were conducted on the Fahliyan strata, identifying 16 microfacies and three-order depositional sequences. The results show that lower successions are associated with a sea-level fall, while middle units indicate a slight rise in sea level, and the uppermost parts represent a fall in sea level. The Mongasht section is the deepest part of the basin. By establishing a sequence stratigraphy framework, the variations in microfacies and sedimentary environment can be analyzed.
CARBONATES AND EVAPORITES
(2022)
Article
Geography, Physical
Yiwei Xu, Xiumian Hu, Eduardo Garzanti, Gaoyuan Sun, Jingxin Jiang, Juan Li, Shijie Zhang, Felix Schlagintweit, Xin Rao
Summary: Tropical rimmed platforms provide better protection against coastal erosion than carbonate ramps. Understanding the factors controlling platform geometry is crucial for predicting the fate of rimmed platforms in a global warming scenario. A study conducted in the Zagros Mountains of southern Iran used various analyses to identify different platform geometries and their formation processes, providing valuable insights into the dynamics of these carbonate systems under changing environmental conditions.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Robert G. Loucks, Robert M. Reed, Hongliu Zeng, Priyanka Periwal
Summary: Numerous small volcanoes were formed in the Balcones Igneous Province in Texas, similar to the Surtsey volcano offshore Iceland. The Elaine field in South Texas is associated with one of these volcanic highs. The integration of seismic data and cores provided a detailed analysis of the deeper-water carbonate depositional systems and reservoir development.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
David W. Haig, Sylvain Rigaud, Eujay McCartain, Jose Nano, Isaias Santos Barros, Rossana Martini
Summary: This study investigates the Lower Jurassic carbonate-platform deposits in Timor-Leste, confirming their age using foraminiferal assemblages and identifying new species in the region. The research distinguishes the Perdido Group from the Bandeira Group and highlights the lack of equivalent facies in other neighboring regions with similar foraminiferal assemblages.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Energy & Fuels
Yousef Ibrahem, V. P. Morozov, V Sudakov
Summary: This study focused on the sedimentary rocks of the Lower Cretaceous in the Euphrates Graben area, using various techniques like core description, thin section observations, and electron microscopy. The research identified different types of dolomites in the Judea Formation, indicating a two-stage diagenetic history for the sediments, which led to improved reservoir properties by enhancing porosity.
Article
Geosciences, Multidisciplinary
Qi Chen, Alina Shchepetkina, Scott Melnyk, Murray K. Gingras
Summary: The Lower Cretaceous McMurray Formation contains crude bitumen reserves of the Athabasca Oilsands. This study discusses the formation mechanism of crude bitumen reserves, the use of dipmeter data to improve facies identification and recognition of point-bar geometry. Analyzing dipmeter tadpole patterns can help refine facies interpretations, particularly in studying point-bar stacking patterns.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geology
Diego Torrome, Marcos Aurell, Beatriz Badenas
Summary: This study reconstructs a complex sedimentary environment in the northeastern margin of the South Iberian Ramp, dominated by carbonate-mud deposition from the middle Santonian to lower Campanian. The sedimentation is primarily controlled by climate-driven sea level oscillations, resulting in a well-defined stratigraphic architecture.
SEDIMENTARY GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
J. Jaballah, J. J. G. Reijmer, A. El-Husseiny, J. Le Goff, A. Hairabian, A. Slootman
Summary: This study is crucial for understanding the heterogeneities and spatial distribution of pore types in different Cretaceous platform to deep-water carbonates, as well as the different petrophysical signatures. The data also provide insights into possible variations in reservoir quality and seismic signature of these types of carbonates in subsurface reservoirs.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Fabrizio Berra, Vincenzo Randazzo, Andrea Zanchi, Maria Rose Petrizzo, Felix Schlagintweit, Stefano Zanchetta, Hamid Reza Javadi
Summary: This study examines the timing and evolution of Cretaceous successions in the Central-Eastern Iran Microplate (CEIM) and Sanandaj-Sirjan Zone (SSZ). The study finds that the Cretaceous marine transgression occurred almost simultaneously on a levelled topography, indicating a previous deep erosion. Additionally, the stratigraphic evolution of the three studied areas reflects changes in depositional environments, suggesting different subsidence rates.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Marco Brandano, Irene Cornacchia, Rita Catanzariti
Summary: This study reveals the geometry and evolution process of the Latium-Abruzzi platform margin. The research shows the existence of two main fault-block platforms during the Late Cretaceous, and a rise and fall of sea level during the Paleocene-Eocene interval. The seafloor carbonate was eroded and formed conglomerate deposition during the falling stage, and an isolated ramp developed on the drowned fault-block platforms.
Article
Geosciences, Multidisciplinary
Julien Michel, Cyprien Lanteaume, Gerard Massonnat, Jean Borgomano, Anthony J. -B. Tendil, Fanny Bastide, Camille Frau, Philippe Leonide, Michel Rebelle, Mickael Barbier, Charles Danquigny, Jean-Paul Rolando
Summary: Designing carbonate facies models requires integration, correlation, and interpretation of multiple geological datasets. This study presents a methodological workflow to define a well-supported facies model for the Urgonian carbonate platform. It includes an exhaustive literature review, analysis of sedimentary facies and depositional profiles, and chronostratigraphic correlations to provide a robust and harmonised facies model for interpreting palaeoenvironmental changes and stratigraphic sequence evolution.
BSGF-EARTH SCIENCES BULLETIN
(2023)
Article
Geology
Jimmy de Rooij, Sybrand A. N. Lucassen, Charlotte Furer, Anne S. Schulp, P. Martin Sander
Summary: This study presents a detailed osteohistological analysis on Triceratops horridus and Triceratops cf. prorsus specimens, aiming to understand the growth and development of ceratopsids. The analysis reveals a distinct pattern of bone tissue growth in Triceratops limb elements, but also suggests that taxonomic ambiguity between Torosaurus and Triceratops cannot be solely resolved based on histological data.
CRETACEOUS RESEARCH
(2024)
Review
Geology
J. R. Ovando-Figueroa, J. A. Moreno-Bedmar, M. Company, J. A. Jacobo-Delgado
Summary: This article presents a review of ammonoid specimens from the Berriasian and Valanginian age in Zacatecas, Mexico. The study includes updated museographic information, new images, and 3D models of the specimens. Taxonomic identification has revealed six species and two genera. Stratigraphic range data suggests that the specimens belong to the uppermost upper Berriasian to lower Valanginian interval, with several biozones identified. Additionally, a paleobiogeographic analysis indicates a clear affinity with contemporaneous ammonoid assemblages from the Mediterranean region.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Jake Kotevski, Ruairidh J. Duncan, Adele H. Pentland, James P. Rule, Patricia Vickers-Rich, Thomas H. Rich, Erich M. G. Fitzgerald, Alistair R. Evans, Stephen F. Poropat
Summary: The cranial remains of non-avian theropod dinosaurs from the Cretaceous period in Australia are poorly understood. This study presents new evidence of non-mandibular cranial material, possibly belonging to the Megaraptoridae family, and contributes to the limited knowledge of Australian Cretaceous theropod cranial remains.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Josh Jenkins Shaw, Alexey Solodovnikov, Evgeny E. Perkovsky
Summary: A fossil of the monogeneric rove beetle subfamily Trichophyinae (genus Trichophya) has been discovered in the Upper Cretaceous Taimyr amber from northern Siberia. This finding indicates the morphological differences between ancient and modern Trichophya species groups. By comparing the morphology, distribution, and habitat requirements of extant species, the taxonomy, biogeography, and paleoecology of the Trichophya in Taimyr amber can be better understood.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Martin Kostak, Frank Wiese, Zuzana Kozlova, Adam Culka, Martin Mazuch, Martin Soucek
Summary: A well-preserved fossil of an upper Cretaceous acanthoceratoid ammonite has been discovered in the Bohemian Cretaceous Basin, providing important insights into the jaw anatomy of these extinct organisms.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Gustavo Santiago, Marcelo de Araujo Carvalho, Renato Rodriguez Cabral Ramos, Sandro Marcelo Scheffler
Summary: The Santa Marta Formation in the Antarctic Peninsula is an important sedimentary sequence that provides insights into paleoenvironmental changes. The distribution of sedimentary organic matter reveals three distinct palynofacies associations and shows a progressive transgression from terrestrial to marine environments.
CRETACEOUS RESEARCH
(2024)
Article
Geology
B. J. Vazquez, D. Castanera, B. Vila
Summary: In Europe, the fossil record of sauropods in the uppermost Cretaceous is mainly found in Spain, France, and Romania. Recently, a significant discovery of titanosaurs' teeth was made in Els Nerets, Spain, which contains the largest tooth sample from the Late Cretaceous in Europe. The teeth show distinct characteristics but cannot be attributed to any known European species. Based on tooth morphology and wear facets distribution, a new taxon is proposed.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Youssef S. Bazeen, Walid G. Kassab, El Sayed M. Moneer, Gebely A. Abu El-Kheir, Mohamed K. Abdelgawad, Haitham M. Ayyad
Summary: This study investigates the Maastrichtian-Danian succession in the Abu Minqar section of the Western Desert of Egypt, using an integrated analysis of biostratigraphy and chemostratigraphy. The results suggest that regional tectonics played a substantial role in the depositional history and paleoenvironmental circumstances of the southern Tethys margin.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Fernando R. Rios, Ana M. P. Mizusaki, Rualdo Menegat, Isaque C. Rodrigues
Summary: This study examines the temporal and spatial relationships between fluvio-aeolian, aeolian, and volcanic systems in the southernmost part of the Parana Basin during the Late Jurassic and Early Cretaceous. By analyzing facies and architectural elements, the evolution of the volcano-sedimentary record is reconstructed.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Antonio M. Casas, Arsenio Munoz, Alberto Tella, Carlos L. Liesa
Summary: This work proposes the application of magnetic surveying to study the cyclicity in sedimentary basins. Through measuring the total magnetic field and vertical magnetic gradient, the short-wavelength magnetic anomalies associated with the sedimentary sequence can be analyzed, providing information about the magnetic susceptibility and magnetic remanence of different sedimentary units. The cyclostratigraphic analysis reveals the existence of various cycles and enables the dating of the basin fill, offering new constraints for basin evolution.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Ottilia Szives, Josep A. Moreno-Bedmar, Beatriz Aguirre-Urreta, Miguel Company, Camille Frau, Mikel Lopez-Horgue, Antoine Pictet, Izabela Ploch, Christian Salazar, Ricardo Barragan, Jean -Louis Latil, Jens Lehmann, Stephane Reboulet, Emmanuel Robert
Summary: The 7th meeting of the IUGS Lower Cretaceous Ammonite Working Group discussed important changes in the geological age classification, including adjustments and improvements to the upper Tithonian-Berriasian, upper Aptian, and Albian stages. The meeting also discussed the Valanginian and Hauterivian stages, and provided discussions on zonal indices and units, emphasizing the use of interval zones and subzones.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Felix Schlagintweit, David Gercar, Bostjan Rozic
Summary: A mixed assemblage of planktonic and benthonic foraminifera has been found in the Lower Flyschoid Formation in the western part of the Slovenian Basin. These findings provide valuable insights into the biostratigraphy and paleogeographic configuration of the region during the Early to Middle Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Arkaprava Mukhopadhyay, Debarati Chattopadhyay, Arghya Poddar, Ranita Saha, Sachin Patil, Tushar Sonkar, Sujoy Das, Rudranil Basak, Shubhabrata Paul, Arindam Roy
Summary: Predator-prey interaction exerts significant selection pressure on the evolutionary pathways of both parties. This research presents a new dataset of gastropod drilling predation on molluscan prey from the Upper Cretaceous, highlighting the influence of drilling predation during this period. The study utilizes a hybrid method of surface sampling without physically breaking the host rock. Findings suggest that drilling predation was an established form of predation during the Late Cretaceous, yet remains understudied.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Dany Azar, Andre Nel
Summary: Lebanoaktassia curiosa is a new genus and species of strange dragonfly, representing the first Gondwanan species of the family Aktassiidae. It was found in Hjoula, Lebanon, along with two endemic dragonfly families, suggesting a possible connection to an island insular system in the Early Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Pablo M. Villegas, A. Martin Umazano, Marcelo Krause, Mariana Brea
Summary: Conifer fossil woods from the Campanian Puntudo Chico Formation were studied, confirming the presence of Brachyoxylon currumillii and the introduction of Cupressinoxylon sp. cf. C. artabeae in the formation. The new specimens of Podocarpoxylon mazzonii suggest that this taxon is common in the Cretaceous to Eocene floristic assemblages. The growth-ring analysis of these fossil trees indicates their development under temperate and humid conditions, with slight sensitivity from year to year and a terminal event representing a cessation or retardation of cambial activity. Other paleoclimatic proxies suggest a temperate-warm and humid depositional environment with some semi-arid events in the Puntudo Chico Formation.
CRETACEOUS RESEARCH
(2024)