Article
Geochemistry & Geophysics
M. Ersen Aksoy, Mustapha Meghraoui, Alina Polonia, M. Namik Cagatay, Asli Zeynep Yavuzoglu, Sebnem Onder, Umut B. Ulgen, Luca Gasperini
Summary: This study focused on the westernmost segment of the North Anatolian fault in NW Turkey and found that the western termination of the 1912 earthquakes' surface ruptures ends about 37 km offshore in the Gulf of Saros. The research suggests that the eastern extension of the 9 August earthquake reached the Central Marmara Basin, with implications for seismic hazard in the Marmara coastal area.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Engineering, Environmental
George Papathanassiou, Sotiris Valkaniotis, Athanassios Ganas
Summary: This research focuses on the island of Lefkada, Greece, analyzing landslide data from two shallow strike-slip faulting earthquakes in 2003 and 2015. The study finds that landslide patterns are not controlled by a single parameter, but result from a combination and interaction of seismic, morphological, and geological factors. Specifically, parameters such as slope angle, geology, and fault rupture/asperities are closely related to the highest landslide densities.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Geochemistry & Geophysics
Tae-Kyung Hong, Junhyung Lee, Jeongin Lee, Seongjun Park, Byeongwoo Kim, Sungchan Choi
Summary: Earthquakes in the Korean Peninsula often occur in subsurface hidden faults that are difficult to identify before seismic activity. In this study, a midcrustal subsurface hidden fault in a seismically quiet region of the central Korean Peninsula was investigated, which caused the M-L 4.1 earthquake on October 28, 2022. Combined analysis of seismicity, geophysical properties, and geological features provided constraints on the geometry of this hidden fault. The fault extends to the surface where a lineament with low gravity anomalies is present.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2023)
Article
Environmental Sciences
Yuqing He, Teng Wang, Li Zhao
Summary: In transtensional regions, the slip distribution of earthquakes can be influenced by the oblique motion of faults and the presence of fault segmentations. By studying the slip distribution of the Lake Hovsgol earthquake in Mongolia, researchers found that the slip directions at different depths were controlled by the left-lateral motion of the Mondy Fault, which also shaped the asymmetric graben structure in the region.
Article
Astronomy & Astrophysics
Liliane M. L. Burkhard, Bridget R. Smith-Konter, Sarah A. Fagents, Marissa E. Cameron, Geoffrey C. Collins, Robert T. Pappalardo
Summary: Strike-slip faulting has been observed on multiple ocean worlds, including Europa, Enceladus, and Ganymede, and may also exist on Saturn's moon Titan. The presence of a porous ice layer saturated with liquid hydrocarbons on Titan provides a unique environment for studying zones of frictional weakness and shear heating, potentially leading to cryovolcanism. The study explores Titan's ability to host shear deformation mechanisms under diurnal tidal stresses, suggesting that shear failure may be an active deformation mechanism on Titan, with implications for future observations and studies of icy moons.
Article
Geology
Rodrigo J. J. Suarez, Miguel E. E. Ramos, Christian Sue, Matias Ghiglione, Vanesa Barberon, Paulo Quezada, Sandrine Roy
Summary: Based on a compilation of strain/stress tensors and evidence of syntectonic strata, combined with a seismotectonic appraisal, typical features of faulting in the Patagonian Andes are assessed. The prevalence of strike-slip faulting challenges the classic proposal for alternating extensional and contractional deformation phases in the Andean orogen. Strain partitioning and non-partitioned contexts are suggested as explanations for the Cenozoic patterns of deformation in the North and South Patagonian Andes respectively.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geosciences, Multidisciplinary
L. Jiao, Y. Klinger, L. Scholtes
Summary: Through numerical modeling, this study demonstrates that during shearing of a layer of brittle material, oblique Riedel fractures nucleate with a regular spacing controlled by the layer's thickness, which then influences the spatial structuration of the entire fault system. An analysis of horizontal stress distribution reveals a threshold at a ratio of 1.5 between inter-Riedel distance and material thickness, beyond which new fractures nucleate due to a switch from compressional to tensional stress.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Yann Klinger
Summary: This study investigates the origin of unexpected high frequency emissions during earthquakes and finds that the most likely source is the interaction between nearby misaligned faults. This finding highlights the discrete nature of strike-slip fault segments at seismogenic crustal scale and adds new constraints to earthquake rupture scenarios.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Xinshun Zhang, Lirong Dou, Zhiquan Nie, Kunye Xiao, Lin Wang, Yebo Du, Shi Chen, Li Wang, Xiaorong Zhou
Summary: The Central African Rift System is an important onshore frontier area for oil and gas exploration in Africa, characterized by fault-depression development and strike slip faulting. Through seismic interpretation, fault throw calculation, and balanced profile cross-section restorations, the fault characteristics and tectonic setting of Doseo depression are analyzed, revealing two stages of strike slip tectonic movements that have shaped the current structure of the depression. These findings provide valuable insights into the tectonic evolution and genetic mechanism of Doseo depression.
FRONTIERS IN EARTH SCIENCE
(2023)
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
Geochemistry & Geophysics
Lucan Mameri, Andrea Tommasi, Javier Signorelli, Riad Hassani
Summary: This research suggests that spatial variations in viscous anisotropy in the mantle can affect strain distribution in the entire lithosphere, and the reactivation of fossil mantle shear zones and strain localization in the crust depend on the orientation and intensity of olivine CPO in the mantle.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2021)
Article
Geochemistry & Geophysics
Tahir Serkan Irmak, Seda Yolsal-Cevikbilen, Tuna Eken, Bulent Dogan, Ceyhun Erman, Evrim Yavuz, Hakan Alcik, Peter Gaebler, Ali Pinar, Tuncay Taymaz
Summary: The study investigates the source properties, aftershock behavior, and coseismic deformation of the 2019 earthquake in the Central Marmara Sea region, indicating that secondary structures play a key role in the crustal kinematics of the area and are likely responsible for the main shock activity.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2021)
Article
Geochemistry & Geophysics
Marilia Barbosa Venancio, Fernando Cesar Alves da Silva
Summary: This study investigates the influence of rheology on the nucleation and evolution of strike-slip structures, and its impact on the structural architecture. Analog experiments were conducted using materials with different rheological behavior, and their properties were measured. The results showed that rheological properties control the deformation zone architecture, fracture and fault arrangement, and the localization of contractional and extensional domains.
Article
Geochemistry & Geophysics
Aurio Erdi, Christopher A-L Jackson
Summary: This study examines the structure and growth of salt-detached strike-slip faults using a 3D seismic reflection dataset from the Outer Kwanza Basin offshore Angola. The findings suggest that these faults formed to accommodate variations in differential seaward translation and salt diapirism. The growth of the fault arrays occurred through tip propagation of isolated fault segments, with some segments linking during specific time periods. The results also highlight the scatter in the D-L scaling of strike-slip faults, reflecting the propagation, interaction, and linkage of individual fault segments.
Article
Geology
Valerie J. Sahakian, Boe J. Derosier, Thomas K. Rockwell, Joann M. Stock
Summary: Researchers conducted geological exploration in the Imperial Valley, California, and found that the strain partitioning and interactions among faults in this region may be more complex than previously thought. By collecting high-resolution seismic imaging data, they discovered the important role of the Imperial fault and other underestimated faults in the deformation of the Earth's crust in this area.
Article
Geography
Cengiz Yildirim
Article
Geography
Emrah Ozpolat, Cengiz Yildirim, Tolga Gorum
Article
Geography, Physical
Youngbeom Cheon, Jin-Hyuck Choi, Namgwon Kim, Hoil Lee, Iyre Choi, Hankyung Bae, Thomas K. Rockwell, Seung Ryeol Lee, Chung-Ryul Ryoo, Hanwoo Choi, Tae-Ho Lee
QUATERNARY INTERNATIONAL
(2020)
Article
Geochemistry & Geophysics
Kevin P. McClain, Cengiz Yildirim, Attila Ciner, Sefa Sahin, M. Akif Sarikaya, Orkan Ozcan, Nafiye Gunec Kiyak, Tugba Ozturk
Article
Geochemistry & Geophysics
Ahmet Evren Erginal, Ramazan Cuneyt Erenoglu, Cengiz Yildirim, H. Haluk Selim, Nafiye Gunec Kiyak, Oya Erenoglu, Emin Ulugergerli, Mustafa Karabiyikoglu
Summary: A historical earthquake-related co-seismic deformation observed on beachrock beds along the southern shoreline of Lake Iznik is discussed as a new paleoseismic record for an 8th century AD earthquake in NW Turkey. The deformation in the beachrock is connected with a secondary structure, and the main surface rupture was likely under the lake waters. The time of the faulting is narrowed down, implying that it was most likely a result of the AD 715 earthquake.
Article
Geography
Oguzhan Kose, Mehmet Akif Sarikaya, Attila Ciner, Cengiz Yildirim
Summary: The Aladaglar mountain range in Turkey, known as the Alps of Turkey, is a popular destination for mountaineering with diverse geomorphic features including karstic and glacial landscapes. This study presents a detailed glacial geomorphological map covering an area of approximately 1200 km², providing a framework for future research on the spatial distribution of glacial landforms. The map is based on remote sensing and detailed field observations of glacial valleys, cirques, aretes, and other glacial erosional and depositional landforms, serving as a valuable resource for dating and glacier reconstructions efforts.
Article
Geosciences, Multidisciplinary
Matthew T. Dorsey, Thomas K. Rockwell, Gary H. Girty, Giles A. Ostermeijer, John Browning, Thomas M. Mitchell, John M. Fletcher
Summary: The study reveals the circulation of oxidizing fluids rich in magnesium and sodium within the damaged zone of the Borrego fault, resulting in partial pulverization of rocks and abundant cataclastic seams. Analysis of the samples shows that porosity and volumetric strain peak in zones 1.5 m-10.5 m from the core.
JOURNAL OF STRUCTURAL GEOLOGY
(2021)
Article
Engineering, Geological
Hakan Tanyas, Tolga Gorum, Islam Fadel, Cengiz Yildirim, Luigi Lombardo
Summary: This study focuses on the extensive landslide event triggered by the 2016 Kaikoura earthquake in New Zealand. By mapping landslide inventory and analyzing the spatial distribution and size characteristics of the landslides, the researchers found that while the spatial distribution of the Kaikoura landslide event is similar to other extreme landslide events, the average size of the landslides generated by the Kaikoura earthquake is relatively larger.
Article
Geography, Physical
Thomas K. Rockwell, Aron J. Meltzner, Erik C. Haaker, Danielle Madugo
Summary: This study constrains the timing of past lake highstands in the Salton Trough using radiocarbon dating. The researchers developed two OxCal models and compiled reliable dates from paleoseismic and archeological sites. By comparing the models and incorporating historical accounts and paleohydrologic reconstruction, they determined the age ranges for seven lake highstands. However, the presence of age inheritance in the samples must be considered.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geochemistry & Geophysics
O. Gomez-Novell, M. Ortuno, J. Garcia-Mayordomo, J. M. Insua-Arevalo, T. K. Rockwell, S. Baize, J. J. Martinez-Diaz, R. Pallas, E. Masana
Summary: This study presents a comprehensive paleoseismic analysis of the Alhama de Murcia Fault in SE Spain, deriving slip rate estimates and assessing their variability over time. The results highlight the importance of accounting for the complete sections of a fault for accurate slip rate estimation and reveal variability in slip rates along the fault.
Article
Multidisciplinary Sciences
Ryley G. G. Hill, Matthew Weingarten, Thomas K. K. Rockwell, Yuri Fialko
Summary: Hydrologic loads can induce seismicity in the Earth's crust. New geologic and paleoseismic data show that past major earthquakes on the southern San Andreas Fault likely occurred during high water levels of an ancient lake. Similar relationships between hydrologic loading and seismic activity may exist in other regions.
Article
Geography, Physical
James McCalpin, Francesca Ferrario, Paula Figueiredo, Franz Livio, Christoph Gruetzner, Malgorzata Pisarska-Jamrozy, Mark Quigley, Klaus Reicherter, Thomas Rockwell, Petra Stepancikova, Petr Taborik
Summary: Since the publication of Paleoseismology (2nd Edition) in 2009, there has been a lack of comprehensive survey on the new trends in Quaternary tectonics. This paper aims to address this issue by discussing the advancements in technologies and interpretations that have emerged in the past decade. The major technological advancements include remote sensing technologies such as drones, lidar, terrestrial laser scanning, Structure-from-Motion for 3D topographic surveys, and satellite geodesy like D-InSAR. Furthermore, there have been improvements in dating Quaternary deposits and integrating geophysical surveys in neotectonic investigations. These advancements have allowed for better recognition of smaller earthquakes and detection of off-fault deformation. However, the increasing amount of data poses challenges in quality control and may require a reassessment of interpretive paradigms.
QUATERNARY INTERNATIONAL
(2023)
Article
Geochemistry & Geophysics
Tunahan Aykut, Cengiz Yildirim, I. Tonguc Uysal
Summary: In this study, new kinematic data and high-resolution digital elevation models were used to understand the deformation pattern and its relation with crustal deformation. Geomorphic analysis revealed an actively deforming post-orogenic topography, with an increasing trend from west to east. The highest uplift values were found in the Alanya-Basyayla-Ermenek-Gazipasa quadrangle. Active NE-SW extensional deformation was observed in a 200 km zone in the north of the subduction. These findings have significant implications for understanding the morphotectonic evolution and post-orogenic deformation in the plateau margins and geodynamic evolution of the Eastern Mediterranean.
Article
Geochemistry & Geophysics
Thomas K. Rockwell, Yann Klinger
Summary: A new study shows that the filling of Lake Cahuilla in the Salton Trough is related to large earthquakes. The hiatus in lake fillings between 100 BCE and 950 CE resulted in accelerated slip after re-inundation. This phenomenon is observed on other faults and is caused by increased pore pressure from water load during full lake inundations.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geochemistry & Geophysics
Simone Racano, Taylor Schildgen, Paolo Ballato, Cengiz Yildirim, Hella Wittmann
Summary: Major strike-slip fault systems, like the North Anatolian Fault (NAF), play a crucial role in accommodating plate motion, but little is known about their evolution. In the Central Pontides, the NAF has experienced transpression and crustal thickening, resulting in rock-uplift rates of 0.2-0.3 km/Myr. However, the exact onset of faster uplift phase associated with the NAF's development is poorly understood. This study presents the spatiotemporal pattern of rock-uplift rates in the Central Pontides, showing an increase in rates after 10 Ma, with peak rates occurring between 4 and 2 Ma.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)