Cyanobacterial Contribution to Travertine Deposition in the Hoyoux River System, Belgium ; Contribution des cyanobactéries à la déposition des travertins dans le système de la rivière du Hoyoux, Belgique

peer reviewed ; Travertine deposition is a landscape-forming process, usually building a series of calcareous barriers differentiating the river flow into a series of cascades and ponds. The process of carbonate precipitation is a complex relationship between biogenic and abiotic causative agents, involving adapted microbial assemblages but also requiring high levels of carbonate saturation, spontaneous degassing of carbon dioxide and slightly alkaline pH. We have analysed calcareous crusts and water chemistry from four sampling sites along the Hoyoux River and its Triffoy tributary (Belgium)... Mehr ...