REIS , A. Tadeu Dos

Chronostratigraphic scheme illustrating the triggering periods of megaslides on the Amazon fan

Synthesis of the triggering processes (simple vs multiple failure), the dynamics (fast vs slow) and volumes of megaslides on both the Amazon and Nile fans

The Amazon fan contains a gas hydrate province known from a bottom-simulating reflection (BSR) that lies within an upper slope compressional belt. In this study, the extent and character of the BSR and its relation to thrust-fold structures is examined using a grid of 2D and 3D seismic data. We show the BSR to comprise a series of elongate...

Submarine gas hydrate systems are increasingly recognised to be associated with seafloor features recording the venting of gas-rich fluids to the deep ocean. The Amazon deep-sea fan contains a gas hydrate system characterised by a discontinuous bottom simulating reflection (BSR) forming elongate patches that follow the crests of thrust-folds...