Submarine canyon development controlled by slope failure and oceanographic process interactions.

ABSTRACT: The southeastern Australian margin hosts a series of submarine canyons. Although the origin and evolution of canyons within the northwestern segment of the margin is relatively well studied, their quantitative morphology, interaction with longshore drift currents and slope failure remain poorly understood in the southeastern region. In this study, high-resolution bathymetry and 3D seismic reflection datasets revealed five main submarine canyons present in the central offshore Otway Basin. The canyons have V-shaped, evolving to U-shaped morphology downslope with sedimentary infill characterized by medium-high amplitudes, recognizable stratal pattern and localized chaotic seismic reflections. Analysis reveals these canyons were initiated by retrogressive slope failure on the continental slop

SUBMITTER: Harishidayat D 

PROVIDER: S-EPMC11316078 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature