A5004322284- Geological formations and processes
- Geology and Paleoclimatology Research
- Pleistocene-Era Hominins and Archaeology
- Archaeology and Rock Art Studies
- Landslides and related hazards
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geological and Geophysical Studies Worldwide
- Maritime and Coastal Archaeology
- Hydrology and Sediment Transport Processes
- Archaeology and ancient environmental studies
- Music and Audio Processing
- Flood Risk Assessment and Management
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Seismic Imaging and Inversion Techniques
- Coastal wetland ecosystem dynamics
- Aeolian processes and effects
- Marine and environmental studies
- Cryospheric studies and observations
- Climate change and permafrost
- Methane Hydrates and Related Phenomena
- Music Technology and Sound Studies
- Phonetics and Phonology Research
University of Oxford
2022
Geotek (United Kingdom)
2019
National Oceanography Centre
2015-2017
University of Southampton
2015-2017
Turbidity currents, and other types of submarine sediment densityflow, redistribute more acrossthe surface the Earth than any flow process, yet their concentration has never been measured directly in deep ocean.The depositsof these flows are societal importance as imperfect records past earthquakes tsunamogenic landslides reservoir rocks for many deep-water petroleum accumulations.Key future research directions on deposits were identified at an informal workshop September 2013.This...
Rivers (on land) and turbidity currents (in the ocean) are most important sediment transport processes on Earth. Yet how rivers generate as they enter coastal ocean remains poorly understood. The current paradigm, based laboratory experiments, is that triggered when river plumes exceed a threshold concentration of ~1 kg/m3. Here we present direct observations an exceptionally dilute plume, with concentrations 1 order magnitude below this (0.07 kg/m3), which generated fast (1.5 m/s), erosive,...
The intersection of archaeological material with the landscape is investigated using OSL dating landforms associated Middle Stone Age (MSA) archaeology in Makgadikgadi basin, Botswana. In this study, MSA sites on pan floor date to two dry periods basin during late Quaternary. Site formation at one site occurred dry, or seasonally conditions that followed a period high lake levels between 128 ± 18 ka and 81 6 ka. was buried by sediments from subsequent 72 5 57 8 At other sites, most likely...
Turbidity currents are the principal processes responsible for carving submarine canyons and maintaining them over geological time scales. The turbidity that maintain or "flush" some of most voluminous sediment transport events on Earth. Long-term controls frequency triggers canyon-flushing poorly understood in canyon systems due to a paucity long sedimentary records. Here, we analyzed 160-m-long Ocean Drilling Program (ODP) core determine recurrence intervals Nazaré Canyon last 1.8 m.y. We...
The full-glacial extent and deglacial behaviour of marine-based ice sheets, such as the Barents Sea Ice Sheet, is well documented since Last Glacial Maximum about 20,000 years ago. However, reworking older sea-floor sediments landforms during repeated Quaternary advances across shelf typically obscures their longer-term behaviour, which hampers our understanding. Here, we provide first detailed long-term record Sheet advances, using timing debris-flows on Bear Island Trough-Mouth Fan....
Submarine canyons are one of the most important pathways for sediment transport into ocean basins. For this reason, understanding canyon architecture and sedimentary processes has importance budgets, carbon cycling, geohazard assessment. Despite increasing knowledge turbidity current triggers, down-canyon variability in frequency within systems is not well constrained.NewAMS radiocarbon chronologies from cores illustrate significant Nazaré Canyon through time. Generalised linear models Cox...