Island beaches morphological and sedimentary short term variations – the case of SE Fernando de Noronha Island, South Atlantic, Brazil

A study on the Brazilian Atlantic Islands, specifically Fernando de Noronha and Atol das Rocas Reserves, reveals significant short-term variations in beach morphology and sediment composition. The research highlights the influence of geological structures, such as hotspots and fracture zones, on the formation and evolution of these oceanic islands. It synthesizes modern knowledge about their geology, including chemical and mineralogical characteristics of their rocks, and suggests that hotspot activity played a crucial role in shaping volcanic chains and island formations. The study also compares Fernando de Noronha with other Brazilian archipelagos like Martin Vaz and São Pedro e São Paulo, emphasizing the unique geological processes at work. The research approach involves detailed analysis of sedimentary and morphological data to understand these dynamic changes over short periods.

Barcellos, R. L., Coelho-Júnior, C., Lins, S. R. R. M., Silva, M. S., Camargo, P. B., & Travassos, P. E. P. F. (2011). Island beaches morphological and sedimentary short term variations – the case of SE Fernando de Noronha Island, South Atlantic, Brazil. Revista de Gestão Costeira Integrada, 11(4), 471–478. https://doi.org/10.5894/rgci283