mare | half-distance of FeO excess (km) | TiO2 | E vs W excess within 0-100 km (FeO, TiO2) | N vs S
Mare Crisium              365     34   E-W +0.37 -0.012  (nE=207, nW=286)   N-S +0.74 -0.118
Mare Fecunditatis         nan     80   E-W +1.50 +0.101  (nE=338, nW=273)   N-S +0.64 +0.253
Mare Imbrium              nan    nan   E-W +0.09 +0.038  (nE=97, nW=187)   N-S -1.09 -0.520
Mare Moscoviense           23     17   E-W +2.05 +0.130  (nE=171, nW=138)   N-S +0.54 +0.021
Mare Nectaris             nan    104   E-W +0.31 +0.064  (nE=121, nW=116)   N-S +1.65 +0.077
Mare Serenitatis          nan     17   E-W +0.95 +0.839  (nE=21, nW=31)   N-S -2.23 -0.946
Mare Smythii               50     45   E-W -1.29 -0.169  (nE=169, nW=131)   N-S +1.48 +0.144
Mare Tranquillitatis      119    104   E-W -1.04 -0.378  (nE=197, nW=152)   N-S -0.70 -0.179
Oceanus Procellarum        68     37   E-W +3.45 +0.273  (nE=315, nW=834)   N-S -1.20 -0.512
