Results 51 to 60 of about 663 (130)

Shale Tectonics in the Hyperextended Continental Margin of the Niger Delta

Tectonics, Volume 44, Issue 7, July 2025.
Abstract Based on the interpretation of a large seismic data set, we provide a comprehensive description of the structures affecting the entire Niger Delta, from the onshore domain to the deep‐offshore. The shale‐dominated delta lies on a divergent segment of the west African passive margin.
V. Spina, J. I. Soto, J.‐C. Ringenbach, S. Mazzoli   +3 more
wiley   +1 more source

Petrochronology of Alkaline Intrusive Magmatism in the Central High‐Atlas (Morocco) and Relationships With Jurassic Salt Diapirism

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract A striking feature of the Imilchil alkaline province, in the Moroccan Central High Atlas, is the close association of magmatic intrusions with Triassic sediments exhumed by diapirism. This study reports field, petrographic, geochemical and Sr‐Nd isotopic data, as well as new U‐Pb zircon ages, which allow us to constrain the timing of the ...
Youssef Ahechach, Muhammad Ouabid, Françoise Roger, Fleurice Parat, Otmane Raji, Jean‐Marie Dautria, Valérie Bosse, Cheikh Elwali Malainine, Hicham El Messbahi, Hamza Skikra, Jean‐Louis Bodinier   +10 more
wiley   +1 more source

Salt Diapirs and Minibasins Along a Transect Across the Basque‐Cantabrian Pyrenees: Implications for Cover‐Basement Interaction During Rifting and Inversion

Tectonics, Volume 44, Issue 5, May 2025.
Abstract The Basque‐Cantabrian Pyrenees experienced Early Cretaceous rifting and latest Cretaceous to Cenozoic inversion, with the presence of prerift Upper Triassic Keuper salt influencing how deformation was accommodated. Considerable disagreement exists on the degree of decoupling of supra‐ and subsalt deformation, the amount of thin‐skinned ...
Mark G. Rowan, Josep Anton Muñoz, Eduard Roca, Eloi Carola, Rodolfo Uranga, Iñaki Garcia, Oriol Ferrer   +6 more
wiley   +1 more source

Pockmark Occurrence in the Northern Gulf of Mexico Influenced by Glacial Cycles and Hydrate Stability

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract On the continental slope of the northern Gulf of Mexico, pockmarks concentrate near the estimated updip edge of the hydrate stability zone (HSZ). We identified 5,691 pockmarks in the northern Gulf of Mexico by combining existing records with manually mapped pockmarks from bathymetric data.
A. Kumar, A. E. Cook, M. A. Lawal, A. Portnov, V. Lecours   +4 more
wiley   +1 more source

Spectral element modelling of fault-plane reflections arising from fluid pressure distributions [PDF]

, 2017
The presence of fault-plane reflections in seismic images, besides indicating the locations of faults, offers a possible source of information on the properties of these poorly understood zones.
Ampuero, Jean-Paul, Haney, Matthew, Hofmann, Ronny, Snieder, Roel   +3 more
core  

Inversion of accommodation zones in salt-bearing extensional systems: insights from analog modeling [PDF]

This work uses sandbox analog models to analyze the formation and subsequent inversion of a decoupled extensional system comprised of two segmented half-grabens separated by a diffuse accommodation zone with thick early syn-rift salt.
Ferrer García, J. Oriol (José Oriol), Granado, Pablo, Muñoz, J. A., Santolaria, Pablo, Wilson, Elizabeth Parker   +4 more
core   +1 more source

Submarine sediment routing over a blocky mass-transport deposit in the Espírito Santo Basin, SE Brazil [PDF]

, 2018
The control of slide blocks on slope depositional systems is investigated in a high-quality 3D seismic volume from the Espírito Santo Basin, SE Brazil.
Alves, Alves, Alves, Alves, Armitage, Babonneau, Barker, Barker, Baudon, Beaubouef, Bjørlykke, Chang, Clark, Corfield, Cosgrove, Davison, Davison, Demercian, Deptuck, Di Celma, Dowdeswell, Dugan, Dykstra, Gamboa, Gamboa, Gamboa, Gamboa, Gee, Gee, Gee, Gong, Hampton, Hardy, Hunt, Kneller, Kumar, Lee, Maillard, Masson, McAdoo, McHargue, Meisling, Minisini, Mohriak, Moscardelli, Ojeda, Omosanya, Omosanya, Pickering, Pickering, Posamentier, Posamentier, Prather, Qin, Rise, Rusciadelli, Sharp, Shultz, Stigall, Trask, Viana, Weller   +61 more
core   +2 more sources

An Albian‐Cenomanian Salt Canopy and Secondary Minibasins in the Sub‐Alpine Fold and Thrust Belt of Haute Provence, France

Tectonics, Volume 44, Issue 3, March 2025.
Abstract Allochthonous salt is common on passive margins and although present in some onshore fold and thrust belts, only a few examples of salt canopies and associated secondary minibasins are known in this tectonic setting. The Subalpine chains of Haute Provence contain Triassic evaporites and have been studied for over 100 years but the importance ...
Lajos Adam Csicsek, Samuel Brooke‐Barnett, Rodney Graham, Lidia Lonergan   +3 more
wiley   +1 more source

Overprinting translational domains in passive margin salt basins: insights from analogue modelling [PDF]

, 2019
Current models of gravitational tectonics on the structural styles of salt-influenced passive margins typically depict domains of upslope extension and corresponding downslope contraction separated by a mid-slope domain of translation that is rather ...
Gawthorpe, Rob, Ge, Zhiyuan, Rosenau, Matthias, Warsitzka, Michael   +3 more
core   +1 more source

Late Jurassic Initial Development of a Salt‐Dominated Fold‐And‐Thrust Belt: The Inverted Passive Margin of the Eastern Alps (Austria)

Tectonics, Volume 44, Issue 1, January 2025.
Abstract The Northern Calcareous Alps (Eastern Alps, Austria) represent a well‐preserved example of the early stages of inversion of a salt‐bearing passive margin, which occurred in a fully submarine setting. Late Jurassic shortening led to widespread thrusting and folding that nucleated preferentially, although not exclusively, along salt structures ...
O. Fernandez, H. Ortner, W. E. H. Munday, M. Moser, D. Sanders, B. Grasemann, T. Leitner   +6 more
wiley   +1 more source