Diagenetic fate of biogenic soft and hard magnetite in chemically stratified sedimentary environments of Mamanguá Ría, Brazil - Rodelli, Daniel; Jovane, Luigi; Giorgioni, Martino; Rego, Eric Siciliano; Benites, M.; Cedraz, Patrícia; Berbel, Glaúcia Bueno Benedetti; Braga, Elisabete de Santis; Ustra, A.; Abreu, F.; Robert, A. P. (Journal Geophysical Research: solid earth, 2019)