In vitro, batch-dissolution of biogenic silica in seawater – the application of recent modelling to real data

Abstract

Abstract Both for straight-forward oceanographic needs as well as application to climate-change amelioration, there is a need for quantitative description of the spatial and temporal variability in the recycled flux of silicic acid in the ocean water column in terms of governing processes. As part of that, the need for a fuller chemical kinetics treatment of biogenic silica dissolution, involving laboratory rate measurements, rate equations and mechanisms, is stressed. Advantage is taken of recent modell [KEYWORDS: Silica dissolution ; Biogenic silica ; In vitro dissolution ; Chemical kinetics ; Batch dissolutions ; Mineral dissolution]