A5042073761- earthquake and tectonic studies
- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Geological formations and processes
- High-pressure geophysics and materials
- Marine and environmental studies
- Geological and Geophysical Studies
- Maritime and Coastal Archaeology
- Earthquake Detection and Analysis
- Geological and Geophysical Studies Worldwide
- Soil erosion and sediment transport
- Archaeology and ancient environmental studies
- Landslides and related hazards
- Hydrocarbon exploration and reservoir analysis
- Seismology and Earthquake Studies
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Coastal and Marine Dynamics
- Pleistocene-Era Hominins and Archaeology
- Coastal wetland ecosystem dynamics
- Methane Hydrates and Related Phenomena
- Hydrology and Sediment Transport Processes
- Flood Risk Assessment and Management
- Aeolian processes and effects
- Ancient Mediterranean Archaeology and History
University of Liège
2016-2025
Laboratoire de Géographie Physique
2009-2018
Lamont-Doherty Earth Observatory
2015
Columbia University
2015
Royal Observatory of Belgium
2007-2013
Laboratoire de Géologie de l’École Normale Supérieure
2010
University of Neuchâtel
2005-2007
Princeton University
2000-2005
Geological and geomorphological offsets at different scales are used to constrain the localization of deformation, total displacement, slip rates over various timescales along central eastern North Anatolian Fault (NAF) in Turkey. The NAF displacement is reevaluated using large rivers valleys (80 ± 15 km) structural markers (Pontide Suture, 85 25 km; Tosya‐Vezirköprü basins, 80 10 km). These suggest a Neogene rate 6.5 mm/yr 13 Myr. river network morphology shows range (20 m 14 across main...
We explore the kinematic mechanisms of active large‐scale folding, based on analysis two adjacent major anticlines in Tian Shan (central Asia) that share an acceleration shortening rate leading to topographic emergence and folded geomorphic surfaces. Their folding are fundamentally different. Yakeng anticline is a gentle pure shear detachment fold with 1200 m well‐constrained history growth beginning at 5.5 Ma order‐of‐magnitude increase from 0.16 ∼1.2–1.6 mm/yr ∼0.16–0.21 Ma. The shape...
The evolution of the Gulf Aden and Anatolian Fault systems are modelled using principles elastic fracture mechanics usually applied to smaller scale cracks or faults. lithosphere is treated as a plate, simple boundary conditions that correspond known plate geometry slip vectors. models provide explanation for many observed geological features. For model predicts why ridge propagated from east west Owen Fracture Zone towards Afar overall form its path. en echelon offsets can be explained by...
Abstract.The Isiro and Ngayu belts in northeastern Democratic Republic of Congo (DRC) are part the Craton among most poorly known Archean terrains worldwide. These consist metavolcanic metasedimentary rocks surrounded or intruded by granitoid rocks. minimum age deposition for supracrustal formations is defined at ca 2633 Ma (e.g. Allibone et al., 2020), whereas granitoids were dated between 3200 2530 (Allibone 2020; Turnbull 2021) strongly deformed with variable proportions mafic enclaves...
The interaction between humans and climate has been a main focus of research in recent years, with many studies relying on contemporary data modeling approaches. However, understanding the dynamics this over long timescales necessitates integration paleoclimate records archaeological data. Paleoclimate provide window into Earth's long-term climatic fluctuations, while evidence offers insights human responses to these changes. Amuq Valley is an exceptional study area for investigating...
Seabed fluid flows refer to the migration of gases and liquids through seabed seawater is often associated with energy resources, benthic ecosystems, global climate marine geohazards. Pockmarks are 'crater-like' depressions on seafloor formed by seepage. Two high-resolution remote sensing surveys (sub-bottom profiling, multi-beam bathymetry side-scan sonar) have been conducted in inner Thermaikos central Patras Gulfs, each characterized distinct geological settings. These new datasets...
In the absence of in situ data, remote sensing becomes one most effective methods for analyzing hydrodynamics a basin. Gulf Corinth, lack information was addressed using 14 years satellite data from Copernicus database to investigate water circulation dynamics Gulfs Patras and Corinth. The combination observations Data Interpolating Empirical Orthogonal Function (DINEOF) produced comprehensive maps detailing hydrodynamic patterns both gulfs. Despite paucity some parts datasets, remaining...
Abstract The deformation and 40 Ar– 39 Ar dating of recent volcanism, that remarkably sits across the North Anatolian Fault eastern termination in Turkey, together with previous studies, put strong constraints on long-term evolution fault. We argue after a first phase 10 Ma, characterized by slip rate about 3 mm/a, during which most trace was established, jumped to 20 mm/a average over last 2.5 without substantial increase fault length. transition correlates change geometry at junction East...
The North Anatolian fault (NAF) in the Marmara Sea is a significant hazard for city of Istanbul.The use paleoseismological data to provide an accurate seismic risk assessment area constrained by fact that NAF system submarine; thus history paleoearthquakes can be inferred only using marine sediment cores.Here, record turbidites was obtained two cores and used reconstruct earthquake along Çınarcık segment, main branch NAF.Klg04 collected from berm north fault, Klg03 positioned basin, south...
A long deformation record (∼16.5 ka) showing nonsteady earthquake recurrence is established for the Aksu thrust (Tianshan, China) on basis of cosmogenic 10 Be dating faulted surfaces. Topographic leveling across fault scarp indicates up to ∼10 m uplift a moraine abandoned ∼16.5 ka and similar ∼6 two inset surfaces yielding ages ∼12.5 ∼5 ka. Successively smaller uplifts terraces younger than 5 indicate that three or more major earthquakes occurred during this period. These data show was quiet...
The North Anatolian Fault (NAF) is a right‐lateral plate boundary fault that arcs across northern Turkey for ∼1500 km. Almost the entire progressively ruptured in 20th century, its cascading style indicating stress from one rupture triggers of adjacent segments. Using published paleoseismic investigations, this study integrates all existing information about timing paleoearthquakes on NAF. Paleoseismic investigation data are compiled into database, and each site Bayesian,...
Abstract High‐resolution physical, geochemical, and geochronological analyses on the sedimentary sequence of Yeniçağa Lake, located in a fault‐bounded basin along North Anatolian Fault, reveal fingerprints paleoearthquakes. A robust sediment chronology, spanning last 3400 years, is constructed by radiocarbon dating time‐stratigraphical correlation with precisely dated Sofular Cave speleothem record. contains 11 seismically induced event deposits characterized siliciclastic‐enriched...
Abstract The seismic origin of turbidites is verified either by correlating such layers to historic earthquakes, or demonstrating their synchronous deposition in widely spaced, isolated depocenters. A correlation could thus constrain the intensity required for triggering turbidites. However, calibration not applicable prehistoric In addition, difficult test if only one deep core drilled a depocenter. Here, we propose new approach that involves analyzing underlying situ deformations...
At 00:02 GMT (03:02 local time) on 17 August, 1999 a magnitude 7.4 (Ms) earthquake occurred 100 km east of Istanbul causing extensive destruction. The event was expected and several scientists have published attempted to publicize the danger. A paper stress interactions for NW Turkey (J. Geophys. Res. 103 (1998) 24466–24469) concluded that "by combining change map with active faulting, likely locations occurrence future earthquakes can be refined; faults in Izmit Bay area, western part Biga...