Review
Environmental Sciences
Zhuoxiao Li, Zitian Peng, Zheng Zhang, Yijie Chu, Chenhang Xu, Shanliang Yao, Angel F. Garcia-Fernandez, Xiaohui Zhu, Yong Yue, Andrew Levers, Jie Zhang, Jieming Ma
Summary: This paper comprehensively reviews the current status of bathymetry methods, including data acquisition techniques, model accuracy, and interpolation algorithms for underwater terrain mapping. The merits and drawbacks of different data acquisition devices are assessed, and the accuracy of existing models is analyzed. Additionally, various interpolation algorithms are evaluated based on their applicability, reliability, and accuracy in different underwater environments. The future trends and challenges in underwater bathymetry technology are discussed, providing a forward-looking perspective on this essential field.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Ecology
K. B. L. Garcia, M. P. Gomes, H. Vital, R. J. Angulo, M. C. Souza, F. Caron, M. L. C. C. Rosa, A. L. Ferreira, C. V. A. Ribeiro
Summary: This study investigates the shelf geomorphology of Rocas Atoll and reveals its similarity to the northeast Brazilian shelf, indicating the influence of Pleistocene/Holocene sea-level oscillations. Additionally, the analysis of multi-temporal satellite images shows that modern climate phenomena intensify reef erosion, affecting shelf sedimentation and sand body dimensions.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Raissa Basti Ramos, Uri Schattner, Francisco Jose Lobo, Mascimiliano Maly, Rodolfo Jasao Sores Dias, Orlemir Carerette, Paulo Yukio Gomes Sumida, Michel Michaelovitch de Mahiques
Summary: A multibeam survey conducted in November 2019 discovered a line of seafloor protrusions in the Santos Basin continental slope. This line, named the Tupana Carbonate Ridge (TCR), is composed of Cold-Water Coral carbonate mounds and is 35 kilometers long. The study suggests that the TCR's morphology may have been shaped by seafloor hydrodynamics eroding the carbonate mounds and forming elongated contourite systems.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geology
Lianchao Luo, Huaguo Wen, Andrea Brogi, Enrico Capezzuoli
Summary: The lateral extent of travertine mounds is mainly controlled by Ca2+ and HCO3- concentrations and water discharge, while the height is influenced by factors such as water table change, tectonic pulses, and climate fluctuations.
Article
Geosciences, Multidisciplinary
Ahmad Ramdani, Pankaj Khanna, Sander De Jong, Gaurav Siddharth Gairola, Sherif Hanafy, Volker Vahrenkamp
Summary: This study conducts a comprehensive three-dimensional outcrop investigation of the stromatoporoid/coral complex in the Late Jurassic Hanifa reservoir analog in Saudi Arabia. It identifies the morphology and distribution of the buildups and proposes their formation mechanism. The study also highlights the significant lateral heterogeneity of these facies, emphasizing the need to consider their subsurface implications in field development planning.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geography, Physical
Mikolaj K. Zapalski, Hiroki Kise, Marek Dohnalik, Ryuta Yoshida, Takato Izumi, James D. Reimer
Summary: Coral-crinoid associations, commonly seen in the Paleozoic era, have been observed in modern seas, suggesting the possibility of similar ecological interactions and niches.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Robert W. Dalrymple, John M. Rivers
Summary: This review examines the characteristics of modern carbonate coastal barrier systems, namely barrier islands and their associated shoals and lagoons, in comparison with their siliciclastic counterparts. It suggests that carbonate C-type barriers behave similarly to siliciclastic barriers during transgression, showing continuous and discontinuous landward movement. The study also reveals preserved post-glacial coastal barriers and lagoonal deposits in modern carbonate shelves.
EARTH-SCIENCE REVIEWS
(2023)
Article
Multidisciplinary Sciences
Luca Casini, Nicolo Marchetti, Andrea Montanucci, Valentina Orru, Marco Roccetti
Summary: This paper presents the results of using pre-trained semantic segmentation deep learning models to detect archaeological sites in the Mesopotamian floodplains environment. The models were fine-tuned using openly available satellite imagery and vector shapes. A randomized test showed that the best model achieved an accuracy of approximately 80%. The integration of domain expertise was crucial in constructing the dataset and evaluating the predictions, considering the subjective nature of determining if a proposed mask is a valid prediction. Additionally, even inaccurate predictions can be valuable when interpreted by trained archaeologists in the proper context. The paper concludes with a vision for a Human-AI collaboration workflow that combines annotated datasets, refined by human experts, with predictive models that can generate heatmaps overlaid on imagery or be vectorized for further analysis in GIS software, allowing archaeologists to analyze and refine the dataset with new annotations.
SCIENTIFIC REPORTS
(2023)
Article
Marine & Freshwater Biology
Annelore Bezzi, Simone Pillon, Chiara Popesso, Giulia Casagrande, Cristina Da Lio, Davide Martinucci, Luigi Tosi, Giorgio Fontolan
Summary: The Po Delta in Italy has undergone severe modifications due to human activities and decreased river input over the past century, resulting in high levels of subsidence and landward barrier rollover. The stabilisation of barrier islands in response to decreased subsidence rates reflects different local behaviours with dominant longshore processes and progradation. This reversal trend, contrary to many other deltas around the world, poses important implications for coastal management and adaptation plans.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Geochemistry & Geophysics
Robert Klaebe, Peter Swart, Robert Frei
Summary: The study investigates the heterogeneity of 853Cr values on a modern marine carbonate platform and compares new 853Cr values from carbonate sediments to modern carbonate sediments accumulating on the platform. The variability in 853Cr values is found to be related to changes in sediment composition and mineralogy, rather than fluctuations in water column redox conditions.
Article
Multidisciplinary Sciences
Jaroslaw Stolarski, Ismael Coronado, Jack G. Murphy, Marcelo Kitahara, Katarzyna Janiszewska, Maciej Mazur, Anne M. Gothmann, Anne-Sophie Bouvier, Johanna Marin-Carbonne, Michelle L. Taylor, Andrea M. Quattrini, Catherine S. McFadden, John A. Higgins, Laura F. Robinson, Anders Meibom
Summary: One of the most conserved traits in the evolution of biomineralizing organisms is the taxon-specific selection of skeletal minerals. The modern asymbiotic scleractinian coral Paraconotrochus antarcticus in the Southern Ocean forms a two-component carbonate skeleton, with high-Mg calcite in the inner structure and aragonite in the outer structure, similar to the Cretaceous Coelosmilia. This highlights a close phylogenetic relationship and suggests the capability of forming bimineralic structures in scleractinian corals dates back at least 100 million years.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Environmental Sciences
Laurence Helene De Clippele, Anna-Selma van der Kaaden, Sandra Rosa Maier, Evert de Froe, J. Murray Roberts
Summary: This study utilized a novel approach to predictively map the distribution of cold-water coral carbonate mounds by combining biological, environmental, and ecosystem function data. The results showed that most of the area is covered by dead coral framework and fine sediments, with dead coral framework contributing significantly to nutrient turnover. The findings suggest that climate-induced changes, local hydrodynamical food supply, and the dissolution of coral framework could have significant implications for the survival and functioning of cold-water coral reefs.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Xue Ji, Yi Ma, Jingyu Zhang, Wenxue Xu, Yanhong Wang
Summary: Accurate bathymetric data in shallow water is crucial for navigation safety, coastal management, and marine transportation. This study proposes a bottom-type adaption-based satellite-derived bathymetry approach (BA-SDB) that considers multiple interfering factors and uses a particle swarm optimization improved LightGBM algorithm for precise depth measurement. Applied in the shallow water around Yuanzhi Island, the BA-SDB approach achieves the highest accuracy with an RMSE value of 0.85 m compared to other methods.
Article
Mechanics
Byung-Ho Kim, Khawar Rehman, Yong-Sik Cho, Seung Ho Hong
Summary: The Fukushima nuclear disaster emphasizes the importance of accurate and fast predictions of tsunami hazard for critical coastal infrastructure. This study demonstrates the use of a one-dimensional convolutional neural network model to predict waveforms at the cooling water intakes of a nuclear power plant in South Korea. The model shows excellent performance in terms of rapid and accurate predictions. This highlights the potential of deep learning models for complex geo-hazard prediction and emergency response coordination.
Article
Multidisciplinary Sciences
Tetsuto Miyashita, Robert W. Gess, Kristen Tietjen, Michael Coates
Summary: The study found larval forms of four stem lampreys from the Palaeozoic era that lack the defining traits of modern lamprey ammocoetes, instead exhibiting features similar to adult lampreys. This suggests that ammocoetes may be a specialization of modern lamprey life history rather than relics of vertebrate ancestry. Phylogenetic analyses also indicate that the last common ancestor of hagfishes and lampreys was a predator without a filter-feeding larval phase, implying that `ostracoderms' might better represent the ancestor of all living vertebrates.
Article
Geology
Arnoud Slootman, Poppe L. De Boer, Matthieu J. B. Cartigny, Elias Samankassou, Andrea Moscariello
Article
Geosciences, Multidisciplinary
Wentao Huang, Marine Maillet, Yongli Zhang, Changqing Guan, Zhuowei Miao, Elias Samankassou, Enpu Gong
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Mahmoud Leila, Andrea Moscariello, Mahmoud Kora, Ahmed Mohamed, Elias Samankassou
MARINE AND PETROLEUM GEOLOGY
(2020)
Article
Geology
Marine Maillet, Wen-Tao Huang, Zhuo-Wei Miao, En-Pu Gong, Chang-Qing Guan, Yong-Li Zhang, Katsumi Ueno, Elias Samankassou
SEDIMENTARY GEOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Rashid Rashid, Anton Eisenhauer, Volker Liebetrau, Jan Fietzke, Florian Bohm, Marlene Wall, Stefan Krause, Andres Ruggeberg, Wolf-Christian Dullo, Hana Jurikova, Elias Samankassou, Boaz Lazar
FRONTIERS IN EARTH SCIENCE
(2020)
Article
Geography, Physical
N. Hallmann, G. Camoin, A. Eisenhauer, E. Samankassou, C. Vella, A. Botella, G. A. Milne, V Pothin, P. Dussouillez, J. Fleury, J. Fietzke, T. Goepfert
GLOBAL AND PLANETARY CHANGE
(2020)
Article
Geology
Or M. Bialik, Elias Samankassou, Aaron Meilijson, Nicolas D. Waldmann, Josh Steinberg, Kul Karcz, Yizhaq Makovsky
Summary: This study reports on two early Cenomanian age volcanic atolls in Mt. Carmel, northern Israel, which are composed of grainstone, floatstone, rudstone, and bafflestone facies dominated by mollusks. The atolls were unable to keep up with rising sea levels due to a suppressed carbonate factory, possibly caused by drowning, turbidity, or nutrient excess. This research sheds new light on the dynamics of carbonate buildups during the Late Cretaceous and their ability to persist.
SEDIMENTARY GEOLOGY
(2021)
Correction
Multidisciplinary Sciences
Luis F. De Lena, David Taylor, Jean Guex, Annachiara Bartolini, Thierry Adatte, David van Acken, Jorge E. Spangenberg, Elias Samankassou, Torsten Vennemann, Urs Schaltegger
SCIENTIFIC REPORTS
(2021)
Article
Geology
Paul Enos, Elias Samankassou
Summary: The Lofer cyclothems of the Alpine Upper Triassic share many similarities with Holocene sediments of Florida Bay, including symmetrical cycles and similar depositional textures and structures. These similarities suggest that sedimentation patterns at a small scale may be independent of the global climate regime, providing important insights into the Triassic depositional environment and future evolution of modern environments.
Article
Geosciences, Multidisciplinary
Moiese Bessong, Joseph Victor Hell, Cecile Olive Mbesse, Marie Paule Mfoumbeng, Junior Agbor-Taku, Andre Noel Dissombo Edimo, Jacqueline Ntsama Atangana, John Eyong Takem, Christel Sobdjou Kemteu, Junior Desire Nolla, Thierry Adatte, Elias Samankassou
Summary: The Hama-Koussou Basin in Northern Cameroon is an asymmetrical syncline predominantly filled with Cretaceous deposits. It has undergone at least three phases of sedimentation, including fluvial and fluvio-lacustrine phases, as well as volcanic and plutonic activities. The East-West elongation observed in the basin is likely linked to tectonic events related to the opening of the Atlantic Ocean.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Jeanne Armelle Bilobe, Susanne Feist-Burkhardt, John Takem Eyong, Elias Samankassou
Summary: A palynological investigation of the Mamfe Basin in southwest Cameroon revealed a range of ages from early Barremian to Cenomanian and identified a level dated as Miocene to Pleistocene. The study indicated significant climatic variations, with three major paleoclimatic settings identified. The basin appears to have recorded regional climate fluctuations rather than local variations.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
R. Zammit, C. H. Lear, E. Samankassou, L. J. Lourens, A. Micallef, P. N. Pearson, O. M. Bialik
Summary: This article examines the alternating humid and arid intervals in North Africa during the Miocene, focusing on the impact of the restriction of the Mesopotamian Seaway and the global climate. It provides valuable insights into the regional hydroclimate and highlights the importance of tectonic forcing and ocean circulation patterns in the evolution of the West African Monsoon system.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2022)
Article
Multidisciplinary Sciences
Jeanne Armelle Bilobe, John Takem Eyong, Elias Samankassou
Summary: The Cretaceous and Neogene deposits in the Mamfe Basin were studied to understand their sediment source, environment, and tectonic regime. The results show that the sediments are immature and likely originated from nearby igneous and metamorphic rocks. The chemical and trace element analyses indicate low to moderate weathering and suggest an arid to semi-arid depositional environment. The geochemical proxies reveal a predominance of oxic conditions during deposition, but also episodic reducing conditions in the basin. Overall, this study provides valuable information about the sedimentary processes and paleoenvironment in the Mamfe Basin.
Article
Geosciences, Multidisciplinary
Manga Owona Gaspard William, Bessong Moise, Mioumnde Arthur Paterne, Mbesse Cecile Olive, Bapowa Laouna Carole, Kusi Micheline Michelle-Alexia Ngum, Meying Arsene, Ekomane Paulin Emile, Samankassou Elias
Summary: This paper focuses on the lithostratigraphy and the palaeoenvironmental evolutions of the Babouri-Figuil Basin depositional system. The study reveals that the basin's sedimentary formations were deposited in a lacustrine/fluvial/deltaic sedimentary environment, which were influenced by volcanic events and hydrothermal fluid circulation.
JOURNAL OF AFRICAN EARTH SCIENCES
(2023)
Article
Geology
Marine Maillet, Wen-Tao Huang, Xiao Li, Zhen-Yuan Yang, Chang-Qing Guan, Yong-Li Zhang, En-Pu Gong, Katsumi Ueno, Elias Samankassou