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RNA degradation by metal mixtures. Results for the basalt analog solutions tend towards less overall cleavage in Mg2+‐rich solutions (e.g., forsteritic) over Fe2+‐rich solutions (e.g., fayalitic). Degradation at pH 9 for all basalt analogs is inferred to be primarily Mg2+‐catalyzed as Fe2+ was observed to precipitate out of solution. Error bars represent SEM (n = 2)
