Recently, an Early Neoproterozoic North China-São Francisco connection model has been proposed; however, it awaits further evidence. In this paper, Precambrian geological records of the two cratons have been summarized and compared, aiming to provide clues to evaluate the above model. Major crustal events peaked at ～2.7 Ga in both cratons; however, there were distinct ～2.5 Ga crustal growth and reworking events in the North China Craton, which are seemly absent in the São Francisco Craton. There are only a few 2.4～2.2 Ga volcanics and plutons in the North China Craton, comparing with widespread rifting-related volcanic-sedimentary formations and plutons at ～2.1 Ga and arc-related igneous series and ultra-high temperature metamorphism at ～2.0～1.9 Ga, which resulted in the amalgamation of the eastern North China Craton and the western North China Craton to form the unified North China paleocontinent. As for the São Francisco Craton, there is a long-lived magmatism event along both the northern and southern margins of the block during 2.4～2.0 Ga, including ～2.0 Ga ultra-high temperature metamorphism. It is likely that both cratons have experienced ～2.0～1.9 Ga arc-events except that the peak metamorphism is slightly earlier in the São Francisco Craton than that in the North China Craton. There are several generations of 1.8～0.8 Ga major dyke swarms in both cratons, and some of these are coeval, e.g., ～1.78 Ga, ～1.7 Ga, and ～0.92 Ga dyke swarms; however, there are ～1.3～1.2 Ga sills/dyke swarms in the North China Craton but ～1.5 Ga dyke swarms in the São Francisco Craton. There are 1.8～0.8 Ga（volanic-）sedimentary formations in both cratons: they comprise of quartz-sandstone-dominated clastic rocks with minor carbonates for 1.8～1.6 Ga and 1.4～1.2 Ga sequences, and clastic sediments and carbonates for 1.0～0.8 Ga sequences; however few 1.2～1.0 Ga records or sequence（s）have been confirmed. There is a 1.6～1.4 Ga carbonate-dominated sequence in the North China Craton but a clastic sediments-dominated suite in the São Francisco Craton. It needs to be mentioned that there are plenty of ～1.5 Ga detrital zircons in the Neoproterozoic strata in the North China Craton, of which rare coeval igneous rocks have been reported, comparing with a distinct igneous event peak in the São Francisco Craton. Both cratons developed Archean-Paleoproteorzoic banded iron formation-related iron deposits, Paleoproterozoic graphite ore deposits, and Meso-Neoproterozoic volcanic-sediments-related sulphide lead-zinc ore deposits. Paleoproteroizc boron and magnesite deposits, and Mesoproterozoic carbonatite-related rare earth element ore deposits were developed in the North China Craton, but not in the São Francisco Craton; on the other hand, greenstone belt-type gold and nickel deposits, as well as emerald gem deposits are important in the São Francisco Craton but not in the North China Craton. During ～0.7～0.5 Ga, the São Francisco Craton was surrounded by the Pan-Africa orogenic; whereas it seems absent in the North China Craton. During Phanerozoic, the São Francisco Craton was stable, except that its broke away from the Congo Craton during the Mesozoic; while the North China Craton has experienced strong tectno-magmatic event during Mesozoic. More work based on detailed geological comparison and paleo-magnetic poles is needed to confirm their neighbourhood, focusing especially on the ～2.0～1.9 Ga igneous-metamoprhic（orogenic）event, the ～1.8～1.7 Ga igneous-sedimentation（rifting）event, and the ～0.9 Ga igneous-sedimentation（rifting）event. Nevertheless, if the two blocks were neighbours, the eastsouthern margin of the North China Craton and the southern margin of the São Francisco Craton are possible linking positions for their similar and continous geology.
Peng Peng Sun Fengbo Wang Chong Wang Xinping Su Xiangdong Zhang Zhiyue Zhou Xiaotong. Comparing the Precambrian geology of the North China Craton and the São Francisco Craton[J]. Chinese Journal of Geology, 2018, 53(2): 363-399.