A5007654290- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Geological formations and processes
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Winter Sports Injuries and Performance
- Polar Research and Ecology
- earthquake and tectonic studies
- Climate change and permafrost
Ghent University
2018-2024
University of Pennsylvania
2024
Abstract Proglacial lakes are effective sediment traps but their impact on the reliability of downstream records to reconstruct glacier variability remains unclear. Here, we investigate sedimentary signature recent recession Steffen Glacier (Chilean Patagonia, 47°S) in fjord sediments, with a focus identifying trapping (decreased yield) and filtering (removal coarse particles) effectiveness growing intermediate proglacial lake. Four cores were collected along 14 km longitudinal transect...
Abstract Pio XI Glacier (49°S) is the largest and one of very few advancing glaciers in Patagonia. Satellite data indicate that main glacier terminus transitioned from calving to land‐based around 2010, effectively resulting formation an ice‐contact delta at head Eyre Fjord. Here, we investigate how this affected sediment transport processes Sediment cores seismic profiles collected along fjord provide evidence for a relatively abrupt increase number magnitude turbidity currents, coeval with...
<p>Proglacial sediments hold continuous and high-resolution records of past glacier dynamics. In this study, we examine the Eyre Fjord (Chilean Patagonia, 49°S), which is fed by Pio XI Glacier, to gain a better understanding how surging phase growing recorded in marine sediments. Glacier has experienced net advance >10 km since 1945 had several phases that each last 2 – 3 years occur every ~14 years. The reported happened between 1976 1979,...
<p>Proglacial lake sediments are widely recognised<em> </em>as accurate and high-resolution archives of climate glacier variability. Sediments deposited in proglacial lakes frequently varved, which offers the possibility to generate precisely-dated records, their basal ages often used constrain deglaciation histories. It is assumed that sedimentation starts immediately after deglaciation. With this mind, we studied onset a recently deglaciated...
<p>Glacial Lake Outburst Floods (GLOFs) are an increasing threat to Patagonian environments and communities. Here, we investigate the geomorphological hydrological impact of a recent GLOF from Pascua River, which discharges at head Baker Fjord (Chile, 48°S). To do so, sediment core was taken ~4 km offshore River mouth water depth 248 m. The coring site is located on flank submarine channel incised trough subaquatic delta 30 m above bottom channel. physical chemical...