, elevating the local pH and the saturation state of carbonate minerals ( Ωcap omega 2. Mineralogy and Organomineralization Pathways
] is rarely precipitated directly by modern organisms or open marine waters. Instead, most dolostones form when magnesium-rich fluids pass through pre-existing limestone during diagenesis, replacing calcium ions with magnesium: origin of carbonate sedimentary rocks pdf new
. Unlike most sedimentary rocks that originate from the weathering of pre-existing rocks, carbonates are often "born, not made," meaning they frequently precipitate in place within a depositional environment. Wiley Online Library Core Origins and Processes Biological Activity , elevating the local pH and the saturation