Article
Geosciences, Multidisciplinary
Carole C. Decalf, Teunis Heyn
Summary: This study focuses on the structure and salt deposition in the central portion of the Scotian Basin, which is associated with magma-rich rifting during the Mesozoic era. By utilizing a high-quality 3D seismic survey and advanced imaging techniques, the researchers were able to image the complex crustal architecture and target sedimentary reservoirs with high resolution. The exploration well drilling confirmed the presence of halite, carnallite, and anhydrite salt in an allochthonous salt sheet, suggesting a rifted basement during salt deposition.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Mar Moragas, Vinyet Baques, Juan Diego Martin-Martin, Ian Sharp, Fabio Lapponi, David Hunt, Michael Zeller, Jaume Verges, Gregoire Messager, Laurent Gindre-Chanu, Roger Swart, Vladimir Machado
Summary: This study investigates the Aptian Pre-Salt sedimentary succession in Cangulo palaeovalley, Namibe Basin, Angola, using field and analytical techniques. The research identifies four transgressive-regressive cycles characterized by mixed clastic-carbonate and carbonate-dominated deposits, with evidence of evaporite dissolution. Two distinct pre-salt carbonate units are found within the Cangulo Formation, including a transitional to marginal marine unit and a freshwater travertine system. The study provides valuable insights into the depositional and diagenetic evolution of the Pre-Salt reservoir systems in the South Atlantic region.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Adi Patria, Hiroyuki Tsutsumi, Danny Hilman Natawidjaja
Summary: The study mapped and described the tectonic geomorphic features in the northern Banda Arc using 3D anaglyph images, and discussed the active tectonics of the region by combining interpretation with seismicity data, published structural maps, and geodetic measurements. Active faults in the area are likely to accommodate the convergence of the northern Banda Arc and the Bird's Head of Papua, potentially producing >= M-w 6.4 earthquakes. The Ambon fault, crossing the capital of Maluku Province, may cause a devastating earthquake.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Craig Magee, Leonardo M. Pichel, Amber L. Madden-Nadeau, Christopher A. L. Jackson, Webster Mohriak
Summary: This study examines the interaction between evaporites and magma in sedimentary basins, focusing on how it influences salt tectonics and magma emplacement. By analyzing the seismic data from the Santos Basin, the research identifies the timing and spatial relationship of igneous intrusions with thick Aptian salt deposits. The study suggests that the interaction between salt and magma can influence salt tectonics and the distribution of magma plumbing systems, ultimately impacting basin evolution.
Article
Geosciences, Multidisciplinary
Qing Bian, Shang Deng, Huixi Lin, Jun Han
Summary: The connection between source rock and reservoir separated by salt strata is a global problem. This paper focuses on the No. 5 strike-slip fault passing through salt layers in the Tarim Basin. The seismic data reveals different structural styles in the salt layer, including transpression, transtension, and pure strikeslip. The impact of deep strike-slip salt tectonics on petroleum exploration is discussed using data from seven wells, showing that thicker salt layers result in poorer production.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Rodolfo M. Uranga, Oriol Ferrer, Gonzalo Zamora, Josep A. Munoz, Mark G. Rowan
Summary: Salt tectonics plays a critical role in the evolution of passive margins, and this study highlights key events in the evolution of the Tarfaya Basin in Morocco through interpretation of seismic data.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Danielle M. Howlett, Rob L. Gawthorpe, Zhiyuan Ge, Atle Rotevatn, Christopher A. -L. Jackson
Summary: This study focuses on Late Miocene deep-water depositional systems offshore Angola, revealing the evolution of submarine channel-lobe systems on salt-influenced slopes through seismic reflection data and attribute mapping. The research found gradual channel diversion during times of high structural growth rate and abrupt channel movement via avulsion nodes during times of high sediment accumulation rate.
Article
Geosciences, Multidisciplinary
A. G. Mousouliotis, S. Pechlivanidou, K. Albanakis, A. Georgakopoulos, B. Medvedev
Summary: Salt-bearing basins are commonly deformed due to gravity mechanisms and regional tectonics, with the study area in the eastern part of the Herodotus Basin showing deformation associated with the flow of Messinian salt deposited during the Messinian Salinity Crisis. The research reveals significant thickness variations of the salt sequence and overlying sediments, as well as distinct salt-tectonic structural provinces characterized by different deformation styles. The compressional thickening of the Messinian salt driven by gravity mechanisms results in the absence of a bathymetric step on the seafloor in the western side of the study area.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geochemistry & Geophysics
Jack N. Williams, Luke N. J. Wedmore, Christopher A. Scholz, Folarin Kolawole, Lachlan J. M. Wright, Donna J. Shillington, Ake Fagereng, Juliet Biggs, Hassan Mdala, Zuze Dulanya, Felix Mphepo, Patrick R. N. Chindandali, Maximilian J. Werner
Summary: The Malawi Active Fault Database (MAFD) is an open-access geospatial database containing 113 fault traces in Malawi and neighboring Tanzania and Mozambique. It is used to understand the regional seismic hazard and tectonic evolution. The MAFD incorporates a multidisciplinary dataset including digital elevation models, geological mapping, seismic reflection surveys, and magnetic and gravity data. The study finds that the distribution of fault lengths in Malawi follows a power law.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geochemistry & Geophysics
Giulio Casini, Jaume Verges, Peter Drzewiecki, Mary Ford, David Cruset, Wayne Wright, David Hunt
Summary: The reinterpretation of the Organya Basin highlights the importance of Upper Triassic evaporites in the tectono-sedimentary evolution of the South-Central Pyrenees. The study integrates new field observations and subsurface data to create a restored cross-section that shows the template of the northern Iberian salt-rich rifted margin. The diapiric activity along this margin is divided into three stages: early salt mobilization in the Jurassic, main diapiric evolution from the late Jurassic to the middle Albian, and diapiric reactivation during basin inversion from the Campanian to the Miocene.
Article
Geosciences, Multidisciplinary
Simon Blondel, Massimo Bellucci, Sian Evans, Anna Del Ben, Angelo Camerlenghi
Summary: Field analogues illustrating the early stage of deformation of shortening structures in salt-bearing orogenic fold-and-thrust belts are not yet well illustrated in literature. The relatively young Messinian salt of the Algerian basin could represent a good case example of such systems. In this study, new seismic data is used to identify, classify and map salt structures throughout the central Algerian Basin and re-assess its structural style. The study found that horizontal displacement loading has driven salt deformation within the basin since its deposition, and observed variations in the structural style of the basin along- and down-dip.
Article
Geochemistry & Geophysics
Giulio Casini, Jaume Verges, Peter Drzewiecki, Mary Ford, David Cruset, Wayne Wright, David Hunt
Summary: The reinterpretation of the Organya Basin highlights the importance of Upper Triassic evaporites in the tectono-sedimentary evolution of the South-Central Pyrenees. Detailed field observations and subsurface data are incorporated to reconstruct a cross-section through the Serres Marginals, Montsec, and eastern Organya salt-related depocenters. This study reveals three stages of diapiric activity along the northern Iberian margin, contributing to the understanding of the salt-rich rifted margin.
Article
Chemistry, Multidisciplinary
Mohammed Hail Hakimi, Ali Kahal, Afikah Rahim, Waqas Naseem, Wedad Alsomid, Alia Al-Buraihi, Thoraia Alyousofi, Shuaib Alqahtani, Hesham AbdulAziz Alyousofi, Naira Magdy Lotfy
Summary: This study examines the geochemical characteristics and hydrocarbon generation potential of the organic-rich shale in the Mukalla Formation in the Jiza-Qamar Basin in Yemen. The results indicate that these shale samples have high organic matter content and potential for gas generation, making them a promising resource for oil and gas exploration.
Article
Multidisciplinary Sciences
Mohammed Alrubaidi, Mohammed S. Alhaddad, Sulaiman I. H. Al-Safi, S. A. Alhammadi, Abobaker S. Yahya, Aref A. Abadel
Summary: This article presents the method and findings of a probabilistic seismic hazard assessment for Yemen in accordance with current seismic design building regulations. The study utilized all available data sources to compile an earthquake database, regionalized the study area into 11 seismotectonic area sources, and developed seismic hazard contour maps showing peak ground accelerations and spectral accelerations for different return periods. The highest predicted seismic hazard was found in Dhamar City, providing valuable insights for developing advanced seismic design criteria for Yemen.
Article
Energy & Fuels
Dicky Harishidayat, Sherif Farouk, Mohamed Abioui, Osama Ahmed Aziz
Summary: The interpretation of subsurface fluid flow features in seismic reflection data plays a crucial role in detecting the presence of hydrocarbon and active petroleum systems. However, the utilization of onshore seismic reflection data in this area is limited. In this study, we aimed to make practical use of onshore seismic reflection data with seismic attribute analysis to describe and interpret subsurface fluid flow features, revealing their characteristics and potential origins.
