Ji et al. use data from our article and from other work to argue that the dolomite we analyzed is not the result of soil forming processes. This conclusion is flawed because they (1) misinterpret relevant data and terminology, (2) do not consider the geologic context, and (3) do not fully understand soil carbonate formation.

Terminology. Their argument rests on the supposition that pedogenesis and diagenesis are distinct phenomena. They do not clearly define these terms; here we do, in order to address their arguments. Pedogenesis is the process of soil formation that occurs on land surfaces as atmospheric and...

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