What are the different styles of calcite precipitation within a hyperalkaline leachate? A sedimentological Anthropocene case study

This study aims to compare the fabrics of anthropogenic carbonates downstream lime and steel disposal sites with models carbonate precipitation from natural systems elucidate potential drivers, mechanisms, morphological similarities, predictability in 3D facies distributions depositional these systems. For this purpose, a combination sedimentological, mineralogical geochemical approaches is conducted including analysis microfacies (petrographic microscope electron microscopy), X-ray diffraction hydrochemistry. The data show that both exhibit clear proximal, middle distal zones precipitation. main macroscopic differences are dominance swamp environments proximal zone prevalence tufa-like barrage-and-pool sequences zones. Microfabrics comparable travertines but lack sub-surface at extreme pH sparry crusts without equivalents travertines. sedimentology shows calcite mineral formation complex not homogeneous or purely driven by thermodynamic processes. Considering human-induced will help us understand mechanisms which aid efforts utilise alkaline wastes for carbon capture manage their environmental impacts.