Rhodalgal/bryomol assemblages in temperate type carbonate, channelised depositional systems: the Early Miocene of the Sarcidano area (Sardinia, Italy)

During Aquitanian-Burdigalian times, temperate-type carbonate-siliciclastic successions were deposited in basins located on the graben and half-graben along the Oligo-Miocene Sardinia Rift Basin (Sardinia, Italy). In one of these basins, the Isili Basin, rhodalgal/bryomol limestone was deposited in a temperate-type carbonate depositional system in which a shallow carbonate factory, a marginal tributary belt and a main channel were identified. In this paper, The Isili Limestone is described in terms of biogenic components and taphonomic characterization. This allows a more detailed reconstruction of the complex relationships between the different sectors of the sedimentary system: a carbonate factory, the smaller tributary channels, and the deeper main channel.