Article
Geosciences, Multidisciplinary
Hongliu Zeng, Zhaohui Xu, Wei Liu, Xavier Janson, Qilong Fu
Summary: An enhanced interpretation workflow was developed to improve facies interpretation in ultradeep, high-velocity carbonate rocks using low-frequency seismic data. Different geomorphologies, facies, and environments were identified, and a new sediment transport mechanism was proposed.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Engineering, Marine
Gustavo Goncalves Garcia, Antonio Jorge Vasconcellos Garcia, Maria Helena Paiva Henriques, Rafael Mendes Marques, Rui Pena dos Reis
Summary: The Amaral Formation in the Lusitanian Basin in Portugal has a wide geographic distribution and is divided into three sectors: lagoon, lagoon-barrier, and marine-distal. Through evolutionary taphonomic analysis and multiscale properties analysis, sediment classification, definition of petrofacies, and construction of geological models can be achieved.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Geology
Joao Regis dos Santos Filho, Alberto Garcia Figueiredo Jr, Juliane Castro Carneiro, Gilberto Tavares de Macedo Dias, Allan Soares Ramalho
Summary: The Santos Basin mesophotic zone is an important marine region in Brazil, but some seabed features have not been fully mapped due to the lack of high-resolution seismic data. However, recent data collection and field campaigns have provided new evidence of biogenic sediment distribution reefal structures in the Santos Basin.
SEDIMENTARY GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Hao Lu, Hongming Tang, Meng Wang, Xin Li, Liehui Zhang, Qiang Wang, Yulong Zhao, Feng Zhao, Jijia Liao
Summary: The complexity of pore types in the Middle East's Cretaceous carbonate reservoir poses challenges in characterizing and predicting its petrophysical properties accurately. By classifying the pore structure and establishing new permeability models based on identified pore structure types, this study provides valuable insights for enhancing oil recovery in the area.
Article
Geosciences, Multidisciplinary
Anna Andressa Evangelista Nogueira, Afonso Cesar Rodrigues Nogueira, Juan Sebastian Gomez Neita, Joelson Lima Soares, Jose Bandeira Cavalcante da Silva Junior, Kamilla Borges Amorim, Guilherme Raffaeli Romero
Summary: The Oligocene-Miocene carbonates of the Bragantina Platform in Northern Brazil were studied using outcrop-based stratigraphy analysis combined with petrography, taphonomy, paleoecology, and ostracod biostratigraphy. The intense storms as autogenic processes were succeeded by rapid allogenic burial by middle Miocene Barreiras' deposits, resulting in the death and accumulation of benthic communities. The high-resolution stratigraphy analysis revealed the details of this burial event and provided insights into the shutdown of carbonate fabric on the Eastern Amazon Coast.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Review
Oceanography
Jun Nishioka, Toru Hirawake, Daiki Nomura, Youhei Yamashita, Kazuya Ono, Aiko Murayama, Alexey Shcherbinin, Yuri N. Volkov, Humio Mitsudera, Naoto Ebuchi, Masaaki Wakatsuchi, Ichiro Yasuda
Summary: The analysis of iron and nutrient data in the East Kamchatka Current (EKC) in the western Bering Sea revealed the expansion of high-nutrient and low-chlorophyll waters, as well as the relationship between Fe supply and freshwater input from the Kamchatka Peninsula. The study also found the presence of an intermediate nutrient pool in the Kamchatka Basin, with decoupled cycles of Fe and Si from N and P. Furthermore, the chemical properties of water in the EKC on the Pacific side of the Kamchatka Peninsula were mainly influenced by the Western Subarctic Gyre circulation.
PROGRESS IN OCEANOGRAPHY
(2021)
Article
Microbiology
Ran Li, Chen Hu, Jianning Wang, Jun Sun, Ying Wang, Nianzhi Jiao, Dapeng Xu
Summary: Marine protists play crucial roles in global biological processes, but the factors determining their diversity and distribution are still not fully understood. This study in the South China Sea revealed that environmental factors such as salinity and water depth, as well as biological factors, significantly influence the abundance and distribution of protists. Rare protists are driven by different factors compared to total and abundant protists, with dispersal limitation being a key driver for active protistan communities.
Article
Limnology
Gulce Kurtay, Hans J. Prevost, Beth A. Stauffer
Summary: The study revealed significant changes in phytoplankton biomass and abundances in the Gulf of Mexico continental shelf waters following Hurricane Harvey. These changes were primarily attributed to the impact of the hurricane rather than seasonal or interannual variability.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Oceanography
Mou Liang, Zhang Honghai, Chen Zhaohui, Hu Yubin
Summary: This study investigated the problem of ocean acidification in the northwest Pacific Ocean and examined the distribution characteristics and influencing factors of surface seawater carbonate chemistry. The results showed that the carbon dioxide concentration in seawater increased with decreasing latitude, while pH and aragonite saturation state exhibited the opposite trend. These findings have important implications for marine ecosystems. Predictions suggest that by the end of this century, seawater pH and aragonite saturation state will significantly decrease.
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2022)
Review
Environmental Sciences
Dubravko Justic, Villy Kourafalou, Giulio Mariotti, Songjie He, Robert Weisberg, Yannis Androulidakis, Christopher Barker, Annalisa Bracco, Brian Dzwonkowski, Chuanmin Hu, Haosheng Huang, Gregg Jacobs, Matthieu Le Henaff, Yonggang Liu, Steven Morey, Jeffrey Nittrouer, Edward Overton, Claire B. Paris, Brian J. Roberts, Kenneth Rose, Arnoldo Valle-Levinson, Jerry Wiggert
Summary: Transport processes are important factors that modulate the estuarine and coastal geomorphology, biogeochemistry, water quality, and coastal food webs in river-dominated shelves of the Gulf of Mexico. These processes control the fate of river-borne sediments, nutrients, and carbon, influencing issues such as land loss, eutrophication, hypoxia, harmful algal blooms, and coastal acidification. Furthermore, transport of pollutants such as pesticides, herbicides, heavy metals, and oil into estuaries and coastal systems is also influenced by these processes. The Gulf of Mexico Research Initiative (GoMRI) has provided significant opportunities to study transport processes in the region and improve understanding for more accurate forecasting and response strategies in the event of environmental disasters such as oil spills.
ESTUARIES AND COASTS
(2022)
Article
Geosciences, Multidisciplinary
Sebastian Thronberens, Stefan Back, Julien Bourget, Tony Allan, Lars Reuning
Summary: This study provides comprehensive documentation and analysis of the Neogene Browse Basin carbonates, highlighting the key controls for Miocene and Pliocene reef growth and decay on the Australian Northwest Shelf.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2022)
Article
Energy & Fuels
Ahmed E. Radwan, Fabio Trippetta, Ahmed A. Kassem, Maciej Kania
Summary: The Radwany Formation in the Gulf of Suez region has been newly identified as a potential reservoir rock with a combination of depositional and diagenetic processes creating various porosity types. Petrophysical evaluations and geochemical analysis have indicated the presence of unconventional and conventional hydrocarbon resources in this formation, particularly in the basal part, making it a valuable area for exploration. The study also highlights the importance of understanding the link between sediment microfacies and petrophysical parameters for predicting hydrocarbon potential in the area.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Bruce E. Kurtz, James E. Landmeyer, James K. Culter
Summary: Blooms of the dinoflagellate Karenia brevis, known as red tides, occur annually along the southwest Florida Gulf coast and are harmful to marine life due to the production of neurotoxins. The current hypotheses suggest that red tides originate from offshore oligotrophic waters using nitrogen from upwelling bottom water or from Trichodesmium blooms, which are then transported to nearshore waters. However, the available nitrogen from terrestrial sources seems insufficient to sustain nearshore red tides. To address this, it is hypothesized that contemporary red tides are linked to the release of nitrogen from offshore submarine groundwater discharge that has accumulated in benthic sediment biomass through dissimilatory nitrate reduction to ammonium. The severity of red tides is influenced by the amount of rainfall in the region where the submarine groundwater discharge originates.
Article
Geosciences, Multidisciplinary
Mohammad Nikfard, Mohsen Hosseinpour, Saeed Nikfard
Summary: A multidisciplinary approach was employed to assess the depositional geometry and sequence stratigraphic architecture of a mixed carbonate-siliciclastic reservoir in Iran. The study found that the reservoir is not flat-lying as previously assumed, but has a gradient. By integrating surface and subsurface data, the distribution of sedimentary facies and sequence architecture patterns were identified.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Umid Kakemem, Arman Jafarian, Antun Husinec, Mohammad Hossein Adabi, Ayoub Mahmoudi
Summary: This study explored the impact of depositional facies and diagenetic features on reservoir quality in the Lower Triassic Kangan Formation of the Persian Gulf Superbasin. The results identified different carbonate-evaporite facies and hydraulic flow unit distributions, with reservoir quality improving seaward.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Geology
Adam Tomasovych, Ivo Gallmetzer, Alexandra Haselmair, Martin Zuschin
Summary: The study suggests that the prediction of sequence stratigraphic framework does not apply to environments where carbonate production keeps up with sea-level rise. Instead, hiatus durations can be estimated by measuring the residence time of skeletal particles in the mixed layer, as demonstrated in a Holocene sequence in the Adriatic Sea. This research highlights the importance of considering taphonomic processes in understanding sedimentation rates and hiatuses in ancient environments.
Article
Ecology
Jan Steger, Marija Bosnjak, Jonathan Belmaker, Bella S. Galil, Martin Zuschin, Paolo G. Albano
Summary: By analyzing death assemblages of molluscs from the Eastern Mediterranean, we found differences in trait composition between native and non-indigenous species since the invasion began, suggesting competition may not be the primary driver of regional native biodiversity loss. However, the increasing dominance of NIS has significantly altered ecosystem functioning, indicating that NIS cannot effectively compensate for the disappearance of native species.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2022)
Article
Geochemistry & Geophysics
Tamas Muller, Adam Tomasovych, Matthias Lopez Correa, Regina Mertz-Kraus, Tomas Mikus
Summary: Determining secular changes in seawater temperature and Mg/Ca ratio is important in various paleo studies. In brachiopod shells, Mg/Ca is used to reconstruct historical temperature changes, but studies show a weak relationship between Mg/Ca and δ18 O and a positive correlation between Mg/Ca and Sr/Ca. The relation between growth lines and Mg/Ca fluctuation is not properly understood. This study analyzes intra-shell variation in Mg/Ca, S/Ca, and Sr/Ca in brachiopod shells and finds that Mg/Ca enrichment is closely associated with growth reduction and not simply seawater temperature changes.
Article
Ecology
Konstantina Agiadi, Rafal Nawrot, Paolo G. Albano, Efterpi Koskeridou, Martin Zuschin
Summary: The study explores the applicability of the mean temperature approach to fossil fish faunas using otolith assemblage data. It shows that the calculated mean temperatures of the otolith assemblage can successfully capture compositional shifts in marine fish faunas based on variations in their climatic affinity driven by regional climate differences.
ENVIRONMENTAL BIOLOGY OF FISHES
(2022)
Article
Geology
Rafal Nawrot, Michaele Berensmeier, Ivo Gallmetzer, Alexandra Haselmair, Adam Tomasovych, Martin Zuschin
Summary: Time averaging of fossil assemblages is crucial for accurate paleoecological and geochronological inferences. In this study, we compared time averaging of major carbonate producers from different phyla and found that despite their skeletal differences, they exhibited similar time averaging. This suggests that taxonomic differences in durability may not significantly affect the temporal resolution of fossil assemblages.
Article
Biodiversity Conservation
Martin Zuschin, Rafal Nawrot, Markus Dengg, Ivo Gallmetzer, Alexandra Haselmair, Sandra Wurzer, Adam Tomasovych
Summary: This study evaluates the effects of spatial and taxonomic scale on drilling frequencies by analyzing Holocene molluscan assemblages from the Adriatic shelf. The results show that drilling predation levels are comparable to those of late Cenozoic ecosystems and increase from the transgressive systems tract to the highstand systems tract at the local scale.
Article
Paleontology
Angelina Ivkic, Andreas Kroh, Abbas Mansour, Mohamed Osman, Mohamed Hassan, Martin Zuschin
Summary: This study examines the abundances of Millepora in Pleistocene reefs in Egypt and finds it to be comparable to adjacent modern reefs. Comparisons between sites with and without Millepora suggest that site specific environmental characteristics determine the presence of Millepora in the fossil reef. The research concludes that the lack of preservation of habitats preferred by Millepora, rather than the preservation potential of the hydrozoan itself, is the most plausible reason for the mismatch between modern and fossil abundances.
Article
Ecology
Paolo G. Albano, Anna Sabbatini, Jonathan Lattanzio, Jan-Filip Paessler, Jan Steger, Quan Hu, Darrell S. Kaufman, Sonke Szidat, Martin Zuschin, Alessandra Negri
Summary: Human activities have greatly influenced biogeographical patterns by introducing non-indigenous species into new areas. However, the lack of long-term observational data makes it difficult to fully understand invasion histories. This study used sediment cores from the southern Israeli shelf to uncover the past of the Lessepsian invasion, which involves the entrance of tropical species into the Mediterranean through the Suez Canal. By applying radiocarbon dating techniques, the researchers found evidence suggesting that some species previously considered non-indigenous are actually native to the Mediterranean. This study highlights the importance of considering long-term historical records to accurately determine the origin and status of species invasions.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Paleontology
Adam Tomasovych, Diego A. Garcia-Ramos, Rafal Nawrot, James H. Nebelsick, Martin Zuschin
Summary: In present-day shallow-marine environments, carbonate skeletal remains tend to be altered and disintegrated due to intense bioerosion and dissolution. However, articulated shells of brachiopods with complete brachidia are paradoxically preserved in shallow-water Palaeozoic and Mesozoic brachiopod assemblages. This study shows that sediment-filled articulated shells in a bathyal death assemblage can have disintegration half-lives exceeding several centuries. The high frequency of these centuries-old shells and the presence of encrusters and sponges suggest that sediment filling inhibits disarticulation while still allowing infestation after death. The articulation paradox may be driven by the Mesozoic Marine Revolution, which intensified predation and organic matter recycling.
Article
Biology
Konstantina Agiadi, Frederic Quillevere, Rafal Nawrot, Theo Sommeville, Marta Coll, Efterpi Koskeridou, Jan Fietzke, Martin Zuschin
Summary: Mesopelagic fishes play crucial roles in marine food webs, are a vast but largely untapped food resource, and contribute significantly to the biological carbon pump. However, their future under climate change scenarios remains uncertain.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Editorial Material
Geology
Martin Zuschin
Article
Paleontology
Martin Sabol, Adam Tomasovych, Juraj Gullar
Summary: This study uses cranial morphology data to compare Pleistocene lions from Europe, Asia, and North America, and discovers differences among them. The study also reveals geographical relatedness among subspecies, with Western European P. spelaea being more similar to P. fossilisintermedia.
PALAEONTOLOGIA ELECTRONICA
(2022)