Bioerosion and dissolution of molluscs in Holocene deposits in the Bahía Blanca estuary, Argentina.

FARINATI, E.; SPAGNUOLO, J.; ALIOTTA, S.

Current Topics on Taphonomy and Fossilization.

De Renzi, M. et al

Lugar: Valencia; Año: 2002; p. 193 - 198

Bioerosion and dissolution of shells are analysed as the most relevant tapho nomical processes present in the skeletal concentrations of the Holocene shell ridges  on the north-east coast of the Bahia Blanca Estuary. Bioerosion indicates that bioclasts have remained exposed during long lapses in the water-sediment interface. Once the final deposit has been conformed due to storm events, a strong effect of dissolution upon bioclasts imprints these accumulations with a distinctive character. nomical processes present in the skeletal concentrations of the Holocene shell ridges  on the north-east coast of the Bahia Blanca Estuary. Bioerosion indicates that bioclasts have remained exposed during long lapses in the water-sediment interface. Once the final deposit has been conformed due to storm events, a strong effect of dissolution upon bioclasts imprints these accumulations with a distinctive character.a distinctive character.