Weathering processes form a wide range of patterns, many of which are a result of “sculpting of rocks by reactive fluids”. Karst and cave morphologies for example, can form by reactive transport (cf.Palmer, 2011), often assisted by microbiological interactions (Hose et al., 2000). However, as discussed in Section 4.8, even cave morphologies usually depend on mechanical processes. When it comes to weathering influenced by dissolution and precipitation, emergent patterns are almost invariably affected by the coupling of chemical and physical processes. In discussing the origin of such patterns, we believe that it is useful...

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