Postdoc at the Japan Agency for Marine-Earth Science and Technology
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I am a marine geologist and geophysicist working on volcanic islands by interdisciplinary approaches. I am particularly interested in volcaniclastic deposits, sedimentation processes and their associated marine hazards around volcanic islands.
March 2023 - present
Japan Agency for Marine-Earth Science and Technology
In this project, interdisciplinary methods are applied to study abundant submarine landslide valleys, sediment wave trains and volcaniclastic deposits in submarine parts of Azores volcanic islands to assess the sedimentary processes, characteristics of deposits and their hazard implications. Marine geophysical data help to characterise geomorpholog...
Volcanic islands export clastic material to their surrounding oceans by explosive eruptions, lava emissions, biogenic production on their shelves, and failure of their slopes, amongst other processes. This raises the question of whether geological events (in particular, eruptions and landslides) can be detected offshore and dated, and whether any r...
Sediment waves are common on the submarine flanks of volcanic islands, but the processes that form them are difficult to decipher from geophysical data alone. Here, we identify downslope-trending trains of sediment waves in multibeam sonar data from five islands of the Azores. Train abundances are derived by counting the train intersections with de...
Small landslides in the upper submarine slopes of volcanic islands present potential hazards locally because of their high frequency. We examine evidence for landsliding in high-resolution bathymetric data from Faial, Pico, São Jorge, and Terceira islands of the Azores. Because the rugged morphology of the upper slopes makes landslides difficult to...
Geological histories of volcanic ocean islands can be revealed by the sediments shed by them. Hence there is an interest in studying cores of volcaniclastic sediments that are particularly preserved in the many flat-floored basins lying close to the Azores islands. We analyse four gravity cores collected around the central group of the islands. Thr...
Giant landslides are now well known to occur in ocean islands with a frequency globally of ∼10 ky, but small landslides occurring in the steep upper submarine slopes of islands are more common and likely more frequent, making them also a potential hazard. The central and eastern Azores Islands, which are scattered about the Africa-Europe plate boun...