A critical review of architectural styles in foreshore-to-upper-shoreface sand bodies: what does preservation tell us about morphology and controlling factors?

SCHWARZ, E.; VEIGA, G.D.; ISLA, M.F.

Toulouse

Congreso; 33rd IAS Meeting of Sedimentology; 2017

International Association of Sedimentologists

Despite the knowledge on morphodynamics of regressive, wave-dominated barrier systems, processes responsible for sand accretion and seaward migration operating in the upper-shoreface and foreshore regions are far from been understood. Additionally, as the morphological configuration of this region can vary from non-barred coasts, to more complex bar-and-trough systems in short time spans (101-103), it is reasonable to assume that architectural styles of foreshore-to-upper-shoreface deposits would represent the time-averaged, preserved conditions during accretion. In this contribution we analyze architectural styles of sand bodiesdeveloped in recent and ancient regressive barrier systems in order to discuss what information is ultimately preserved and their key controlling factors.