(A) The global total SMFe particle abundance (wt%). (B) Total latitudinal average of SMFe particle abundance (wt%) with a standard deviation envelope. (C) Only the mare regions of the global SMFe particle abundance (wt%). (D) Mare SMFe particle abundance (wt%) latitudinal average with a standard deviation envelope. (E) Only the highland regions of the global SMFe particle abundance (wt%). (F) Highlands SMFe particle abundance (wt%) latitudinal average with a standard deviation envelope.