A5079466802- Geology and Paleoclimatology Research
- Geological formations and processes
- Methane Hydrates and Related Phenomena
- Geomagnetism and Paleomagnetism Studies
- Geological Studies and Exploration
- Geological and Geophysical Studies
- Pleistocene-Era Hominins and Archaeology
- Climate change and permafrost
- Cryospheric studies and observations
- Hydrocarbon exploration and reservoir analysis
- Landslides and related hazards
- earthquake and tectonic studies
- Archaeology and ancient environmental studies
- Paleontology and Stratigraphy of Fossils
- Marine and environmental studies
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Arctic and Antarctic ice dynamics
- Isotope Analysis in Ecology
- Geological and Geophysical Studies Worldwide
- Underwater Acoustics Research
- Coastal and Marine Dynamics
- Geological Modeling and Analysis
- Maritime and Coastal Archaeology
- Complex Network Analysis Techniques
Université du Québec à Rimouski
2016-2025
Université Laval
2002-2023
Northeastern University
2023
Université du Québec à Montréal
2009-2022
Effigis (Canada)
2017-2018
National University of Tierra del Fuego
2018
Consejo Nacional de Investigaciones Científicas y Técnicas
2018
Northern Arizona University
2017
Bedford Institute of Oceanography
2017
Geological Survey of Canada
2004-2017
The Last Interglacial (LIG) represents an invaluable case study to investigate the response of components Earth system global warming. However, scarcity absolute age constraints in most archives leads extensive use various stratigraphic alignments different reference chronologies. This feature sets limitations accuracy assignment climatic sequence events across globe during LIG. Here, we review strengths and methods that are commonly used date or develop chronologies for time span (∼140–100...
Significance In coastal Alaska and the St. Elias orogen, over past 1.2 million years, mass flux leaving mountains due to glacial erosion exceeds plate tectonic input. This finding underscores power of climate in driving rates, potential feedback mechanisms linking climate, erosion, tectonics, complex nature climate−tectonic coupling transient responses toward longer-term dynamic equilibration landscapes with ever-changing environments.
Global warming due to anthropogenic factors can be amplified or dampened by natural climate oscillations, especially those involving sea surface temperatures (SSTs) in the North Atlantic which vary on a multidecadal scale (Atlantic variability, AMV). Because instrumental record of AMV is short, long-term behavior unknown, but climatic teleconnections regions beyond offer prospect reconstructing from high-resolution records elsewhere. Annually resolved titanium an annually laminated...
Abstract The monitoring of turbidity currents enables accurate internal structure and timing these flows to be understood. Without monitoring, triggers often remain hypothetical are inferred from sedimentary structures deposits their age. In this study, the bottom within 20 m seabed in one Pointe‐des‐Monts (Gulf St. Lawrence, eastern Canada) submarine canyons were monitored for two consecutive years using Acoustic Doppler Current Profilers. addition, multibeam bathymetric surveys carried out...
Abstract The seismic potential of the Lesser Antilles subduction zone is poorly known and highly debated. Only two damaging earthquakes have been reported in historical period, 1839 1843, but their sources magnitude are still uncertain. Global Navigation Satellite Systems coral data contradict each other, no conclusion has reached on coupling ratio plate interface. Given threat posed by possible occurrence a large megathrust earthquake, it crucial to gain information prehistorical events. We...
ABSTRACT Precise relationships between high‐frequency ice sheet dynamics and late Quaternary climate variability are still poorly understood, notably with regard to their relative timing causal mechanisms. Baffin Bay is of particular interest in this due the influence streaming activities from north‐eastern Laurentide, southern Innuitian western Greenland margins on its sedimentary regimes during glacial times. Here we document such margin using a sedimentological analysis performed piston...
Our study aims at identifying and characterizing tsunami storm deposits by combining sedimentological, geochemical, radiocarbon dating analyses. X-ray computed microtomography (micro-CT) is used to characterize the sedimentary fabric of deposits. The was conducted on a transect oriented short sediment cores from small lagoon Saint Martin (Lesser Antilles), where both event types could be observed. Using micro-CT data different deposits, we were able derive paleo-flow orientations directions...
The Late Quaternary chronostratigraphic framework of the Arctic Ocean remains contentious, hindering our understanding paleoceanographic conditions and their influence on global climate change. Recent advances in microbiostratigraphy amino acid racemization (AAR) dating challenge high-sedimentation rate central scenario proposed nearly two decades ago. To address this issue, U-Th analyses were performed a Lomonosov Ridge sediment core, ICE04, whose chronostratigraphy had previously been...
New hydroacoustic measurements combined with old data reveal the widespread occurrence of contourite drift deposits - indicative persistent strong bottom currents -  at rather great water depths in northern Baltic Sea and  Eastern Canadian coastal waters (Foxe Basin, Hudson Bay, Gulf St. Lawrence). In addition, lag suggest that temporary eroded sediments most likely during cold Little Ice Age. For example, Age are found to a depth  ~ 300 m Foxe Basin ~ 150 Sea. all...
Abstract. X-ray micro-computed tomography (µCT) scans were performed on four varved sediment cores collected in Grand Lake (Labrador) and previously studied with thin sections. These allowed us to investigate the possibility of using µCT as a substitute for sections carry out counts thickness measurements sediments. Comparing varve these two methods, are slightly higher than ones made The difference suggests that petrographic study scanning electron microscope (SEM) analysis section remain...
Marine traffic is the main contributor to ocean noise at low frequencies, contributing an observed increase of up 10 dB over few decades. It predicted further intensify coming decades and expand dramatically in Arctic following new routes made accessible by global warming sea-ice melt. Anthropogenic has a demonstrated impact on marine environment, through masking intraspecific interspecific communication, affecting predator-prey interactions hampering settlement cues reducing threat...
Two piston cores recovered from the Chukchi and Beaufort seas document Arctic Holocene geomagnetic field behaviour highlight potential of secular variation relative paleointensity as a regional chronostratigraphic tool. Several centennial- to millennial-scale declination inclination features can be correlated in both cores, with other high-resolution western North American lacustrine volcanic paleomagnetic records changes Earth’s dipole moment, supporting origin these implying that they are...