Borrego Flores, JoséMonterde, J.Morales González, Juan AntonioCarro Flores, BertaLópez González, Nieves2014-11-052014-11-052002http://hdl.handle.net/10272/9118Diagenetic sulphurs have been observed in subsurficial sediments from Odiel River Estuary. These sulfurs display three distinct morphologies: microcrystal aggregates, framboidal aggregates and euhedral pyrite macrocrystals. The genesis of these pyrite morphologies occurs in non-strictly-anoxic environments with a continuous sulphate and iron support where the bacterial activity induces a fast nucléation and growth of microcrystals. These optimal environmental conditions present in the Odiel estuary allow an accelerated evolution from framboidal morphologies to euhedral macrocristals during early diagenetic stagesspaAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/PyriteDiagenesisEstuarine sedimentsSpainjournal articleopen access