Article
Engineering, Marine
Shaoyu Zhang, Junjiang Zhu, Yonggang Jia, Sanzhong Li, Ruixue Chen, Xingquan Chen, Xiaolin Ou, Qianqian Li
Summary: This paper analyzes multibeam bathymetry data from the South China Sea continental margin to study the formation patterns and variations of cyclic steps in submarine canyons. The research reveals that these cyclic steps are formed by turbidity currents flowing along the Penghu and Taiwan canyons, and that the Penghu canyon has undergone migration.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
Dicky Harishidayat, Emily Barnabas Kiswaka
Summary: This study combines wellbore interpretation and 3D seismic datasets to reveal the spatial evolution of submarine channels in the Frigg Field and their influence on sediment distribution. Sediment gravity flows followed various submarine channels and had a significant impact on sediment distribution.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
Alessandra Savini, Valentina Alice Bracchi, Antonella Cammarosano, Micla Pennetta, Filippo Russo
Summary: Climate change and tectonic uplift are the main driving forces behind the formation of long and narrow terraced landforms, with both emerged and submerged terraces being significant geomorphological indicators. Integrating various datasets can lead to a better understanding of the tectono-geomorphological evolution.
Article
Geology
Andrea Fildani, Svetlana Kostic, Jacob A. Covault, Katherine L. Maier, David W. Caress, Charles K. Paull
Summary: Research on the depositional record of submarine fans and related turbidite systems has revealed the importance of architectural elements like channels, lobes, and levees. The study focuses on the La Jolla Canyon in offshore southern California, using high-resolution data to explore the characteristics of bedforms formed by supercritical turbidity currents. The findings provide valuable insights into sedimentary processes important for submarine fan growth in sedimentary basins.
Article
Engineering, Marine
Wenbo Du, Chupeng Yang, Huodai Zhang, Jinwei Gao, Mingming Wen, Xiaosan Hu, Ziying Xu, Xin Nie, Rongwei Zhu
Summary: Submarine sinkholes are unique geomorphological features that were discovered for the first time in the isolated Ganquan carbonate platform in the northwestern South China Sea. Based on high-resolution bathymetric data and seismic profiles, 37 submarine sinkholes were identified, characterized by their cavity structure and karstic landscape features. The inner walls of the sinkholes show stalactite-like structures, possible dikes, flow marks, and corroded holes. The temperature within these sinkholes is higher than that of the open ocean at the same depth. It is proposed that these sinkholes formed through the dissolution of the carbonate platform by acidic hydrothermal fluids originating from magmatic activity and migrating along faults.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Geology
Rebecca G. Englert, Stephen M. Hubbard, Matthieu J. B. Cartigny, Michael A. Clare, Daniel S. Coutts, Sophie Hage, John Hughes Clarke, Zane Jobe, D. Gwyn Lintern, Cooper Stacey, Daniela Vendettuoli
Summary: This study explores the formation and evolution of cyclic steps in deep-water sedimentary rocks through sedimentological and quantitative three-dimensional architectural analyses of modern and ancient datasets. It reveals similarities in deposit dimensions, facies, and architecture across different turbidite-dominated settings and timescales, shedding light on the stratigraphic expression of small-scale, sandy upslope-migrating bedforms on the seafloor.
Article
Geosciences, Multidisciplinary
Hugo S. Yamassaki, Fernando F. Vesely
Summary: The study analyzed the geomorphological evolution and architecture of the Maric ' a deep-sea fan in the northern Santos Basin offshore SE Brazil, mapping five horizons using three-dimensional seismic data and well logs. The research revealed major geomorphologic transformations of the deep-sea fan from inception to abandonment, identifying six lobes with varying growth patterns and stratigraphic signatures indicative of different deposition processes. The results showed that the channel network and sand-body architecture evolve predictably controlled by fan aggradation.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Environmental Sciences
Giacomo Deiana, Luciano Lecca, Rita Teresa Melis, Mauro Soldati, Valentino Demurtas, Paolo Emanuele Orru
Summary: This paper presents the results of a high-resolution survey on the continental shelf off San Pietro Island in southwestern Sardinia. Various morphological features shaped during the Last Glacial Maximum were reconstructed, including tectonic controlled palaeo-cliffs, a deep palaeo-valley mouth, a palaeo-lagoon, and submerged palaeo-shorelines. The study utilized multisensor and multiscale data obtained through seismic sparker, sub-bottom profiler chirp, multibeam, side scan sonar, diving, and uncrewed aerial vehicles to document these features.
Article
Environmental Studies
Tomasz Kaminski, Rafal Szewczyk
Summary: This article analyzes the scope and limitations of the exploitation of submarine cables and pipelines, referencing the provisions of UNCLOS, the practice of states, and the judgments of international tribunals. The core of the article focuses on a comprehensive approach to the concept of reasonable measures and the interpretation of Article 79 of UNCLOS.
Article
Geosciences, Multidisciplinary
Chris Larsen, Dicky Harishidayat, Kamaldeen O. Leif Omosanya
Summary: This study analyzed the geomorphologic controls on the evolution of fourteen submarine channels within the Clifdenian-Tongaporutuan interval of the Southern Taranaki Basin. The findings revealed two main groups of channels: isolated and amalgamated stacks, which further include high sinuosity-meandering, low sinuosity-meandering, and straight channels. The interactions between turbidity flows and seafloor topography, as well as the eustatic sea-level fall and tectonic activities, played significant roles in shaping the channels. The integrated analysis and unique case study contribute to research on submarine channels and provide insights into various geological aspects.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geography, Physical
Attilio Sulli, Elisabetta Zizzo, Daniele Spatola, Maurizio Gasparo Morticelli, Mauro Agate, Claudio Lo Iacono, Francesco Gargano, Fabrizio Pepe, Gaspare Ciaccio
Summary: This study presents a morpho-structural analysis of the submarine sector of the Ustica volcanic edifice, providing insights into the geological processes and geodynamic activity in the Central Mediterranean. It reveals the composition of the volcano, distribution of geomorphological elements, and interaction of volcanic, tectonic, oceanographic, and gravity processes, contributing to a better understanding of the area's geological history.
Article
Geosciences, Multidisciplinary
Hui Chen, Dorrik A. Stow, Xinong Xie, Jianye Ren, Kainan Mao, Ya Gao, Beichen Chen, Wenyan Zhang, Thomas Vandorpe, David Van Rooij
Summary: The study analyzes the sediment budget and fan system development in the Northwest Sub-basin of the South China Sea since the Late Miocene, revealing the impact of sediment supply changes on the formation of two interdigitating basin-floor fan systems. The Xisha fan and Pearl River fan experienced different sediment supply patterns during different periods, providing insights into the sediment source-to-sink processes in marginal oceanic basins like the South China Sea.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Kun Zhang, Haibin Song, Shaoqin Sun, Jinyao Gao
Summary: Submarine landslides in the northeastern South China Sea were investigated using multi-channel seismic and topographic data. The study revealed that most landslides are small in size and developed in regions with small slope gradients. The distribution of submarine landslides correlates with bottom simulating reflections (BSRs) and seabed activities, suggesting possible interrelations among them.
GEOLOGICAL JOURNAL
(2021)
Article
Geography
Andrea Giulia Varzi, Luca Fallati, Alessandra Savini, Valentina Alice Bracchi, Pietro Bazzicalupo, Antonietta Rosso, Rossana Sanfilippo, Marco Bertolino, Maurizio Muzzupappa, Daniela Basso
Summary: Peculiar columnar-shaped coralligenous (C) outcrops were documented offshore Marzamemi village (SE Sicily, Ionian Sea), and the extent and distribution of these outcrops were assessed using a new high-resolution bathymetric map. The C bioconstructions are mainly distributed along two depth ranges, 36-42 m and 86-102 m water depth.
Article
Geology
Arnau Obradors-latre, Peter d. w. Haughton, Colm s. Pierce, Patrick m. Shannon, Anthea r. Lacchia, Simon p. Barker, Ole j. Martinsen
Summary: Highly efficient sediment gravity flows can bypass mid-fan channels and lobes and deposit significant volumes of sand, mud, and particulate organic matter in outer-fan and basin-plain settings. The study of the Serpukhovian to Bashkirian fill in the Shannon Basin in western Ireland reveals the preserved deposition features prior to mid-fan channels and lobes. Different flow transformation mechanisms impact mud distribution, bed geom-etries, larger scale bed stacking patterns, and stratigraphy.
JOURNAL OF SEDIMENTARY RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Kelly D. Thomson, Daniel F. Stockli, Margaret L. Odlum, Pauline Tolentino, Cai Puigdefabregas, Julian Clark, Andrea Fildani
Article
Geosciences, Multidisciplinary
R. G. Englert, S. M. Hubbard, W. A. Matthews, D. S. Coutts, J. A. Covault
Article
Geosciences, Multidisciplinary
Dustin B. Bauer, Stephen M. Hubbard, Jacob A. Covault, Brian W. Romans
FRONTIERS IN EARTH SCIENCE
(2020)
Article
Geology
Jinyu Zhang, Zoltan Sylvester, Jacob Covault
Article
Geology
Katherine L. Maier, Charles K. Paull, David W. Caress, Krystle Anderson, Nora M. Nieminski, Eve Lundsten, Benjamin E. Erwin, Roberto Gwiazda, Andrea Fildani
JOURNAL OF SEDIMENTARY RESEARCH
(2020)
Article
Geology
Stephen M. Hubbard, Zane R. Jobe, Brian W. Romans, Jacob A. Covault, Zoltan Sylvester, Andrea Fildani
JOURNAL OF SEDIMENTARY RESEARCH
(2020)
Article
Geology
Andrea Fildani, Svetlana Kostic, Jacob A. Covault, Katherine L. Maier, David W. Caress, Charles K. Paull
Summary: Research on the depositional record of submarine fans and related turbidite systems has revealed the importance of architectural elements like channels, lobes, and levees. The study focuses on the La Jolla Canyon in offshore southern California, using high-resolution data to explore the characteristics of bedforms formed by supercritical turbidity currents. The findings provide valuable insights into sedimentary processes important for submarine fan growth in sedimentary basins.
Article
Multidisciplinary Sciences
R. M. Forkner, J. Dahl, A. Fildani, S. M. Barbanti, I. A. Yurchenko, J. M. Moldowan
Summary: This study provides a detailed account of repetitive changes in water column ecology during the Cenomanian-Turonian mass extinction (Oceanic Anoxic Event 2-OAE2) in the Western Interior Seaway of North America, suggesting that OAE2 was the result of cumulative environmental stresses. The erratic variations in biotic composition during OAE2, as revealed by molecular fossil abundances, likely contributed to the mass extinction event, possibly linked to repeated episodes of volcanic activity. The study also highlights that environmental stresses played a significant role in OAE2, in addition to catastrophic volcanism and CO2 outgassing.
SCIENTIFIC REPORTS
(2021)
Article
Geology
Lucas Vimpere, Jorge E. Spangenberg, Marta Roige, Thierry Adatte, Eric De Kaenel, Andrea Fildani, Julian Clark, Swapan Sahoo, Andrew Bowman, Pietro Sternai, Sebastien Castelltort
Summary: In this study, evidence of the Paleocene-Eocene Thermal Maximum (PETM) record in the Gulf of Mexico was presented using organic carbon stable isotopes and biostratigraphic constraints. The study suggests that climate and tectonic perturbations in the upstream North American catchments can have a significant impact on the downstream sectors of the Gulf Coastal Plain. The findings provide valuable insights for paleoclimate and sourceto-sink reconstructions.
Article
Geology
Nora M. Nieminski, Tim R. McHargue, Jared T. Gooley, Andrea Fildani, Donald R. Lowe
Summary: The deposits of the upper Neoproterozoic Zerrissene Group in central-western Namibia represent a large siliciclastic deep-water depositional system, showcasing the intricacies of facies and architectural relationships and providing a new model for modern submarine fans.
Correction
Multidisciplinary Sciences
Glenn R. Sharman, Zoltan Sylvester, Jacob A. Covault
SCIENTIFIC REPORTS
(2020)
Article
Geosciences, Multidisciplinary
Louis Honegger, Thierry Adatte, Jorge E. Spangenberg, Jeremy K. Caves Rugenstein, Miguel Poyatos-More, Cai Puigdefabregas, Emmanuelle Chanvry, Julian Clark, Andrea Fildani, Eric Verrechia, Kalin Kouzmanov, Matthieu Harlaux, Sebastien Castelltort
CLIMATE OF THE PAST
(2020)
Article
Geology
Jacob A. Covault, Zoltan Sylvester, Michael R. Hudec, Can Ceyhan, Dallas Dunlap
DEPOSITIONAL RECORD
(2020)