Clemente Coelho Junior / Roberto Lima Barcellos / Sayonara Medeiros Lins
Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
This book focuses primarily on the spatio-temporal study of the sedimentary, geochemical and morphological aspects of a sheltered coastal environment on an oceanic island. The research site is the Sueste Environmental System (4°S/32°W), located in the Mar de Fora, on the southern coast of the Fernando de Noronha Archipelago, in the south-equatorial Atlantic. The seasonal study conducted quarterly in 2010-11 indicated a textural and compositional homogeneity of the sediments, in general, moderately selected bioclastic fine sands, composed of mollusc/coral fragments and with low organic content (C < 2.0%/ N < 0.2%) of marine origin (C/N < 12.0 and d13C > -19.0‰PDB). Although seasonal morphology and geochemistry indicated spatial and temporal differences between sediments in the western and eastern portions of Sueste Beach, as well as in each sedimentary subenvironment studied: bay, beach, dune, lagoon, and mangrove. Finally, the beach profiles reveal a seasonal pattern of erosion and deposition due to regional oceanographic-climatic conditions and local morphodynamic factors. These transects also indicate the ongoing silting process in the Sueste mangrove and lagoon.
