70–80% of the continental crust was produced during the 4.0–2.0 Ga time span, but the preserved area of Archean/early Paleoproterozoic cratons is smaller than 40%. Part of this deficit can be accounted for by the presence of reworked old crust in the basement of mid-Paleoproterozoic to Phanerozoic orogenic belts. Here, I compare the crustal evolution of the Brasiliano-Pan-African Borborema Province (BP) with that of the São Francisco Craton (SFC) in eastern Brazil and highlight numerous geological aspects, several of which are uncommon in other cratons/orogenic belts, indicating their shared evolution for most of the Precambrian. These include: 1. Presence of the oldest rocks (Eo- to Paleoarchean) from the South American Platform. 2. Occurrence of Siderian (2.5–2.3 Ga) rocks. 3. Generation of juvenile crust and reworking of pre-existing rocks during the Transamazonian event (2.2–2.0 Ga). 4. Intermittent rifting and intraplate magmatic events between 1.78 and 1.50 Ga. 5. Intrusion of mafic dykes and A-type granites at 1.0–0.85 Ga. 6. Intrusion of mafic rocks, syenites and granitoids with intraplate signature between ca. 0.71 and 0.64 Ga. 7. The lack of evidence for igneous and tectonic activity between ca. 1.95 and 1.78 Ga, during most of the Mesoproterozoic, and between 0.85 and 0.73 Ga. The temporal coincidence of Rhyacian orogenic events in the SFC and BP favors the hypothesis that they were part of a continent formed by the accretion of Archean/early-Paleoproterozoic blocks and of juvenile arc crust during the Transamazonian Orogeny. In addition, the recording of several intraplate tectonomagmatic events from the late-Paleoproterozoic to the Neoproterozoic indicates that they remained united until at least the mid-Neoproterozoic. In this context, BP can be interpreted as a fragment of the SFC re-accreted and reworked during the Brasiliano-Pan-African Orogeny (ca. 640–550 Ma). Recent studies demonstrate that most of the basement of the Brasília and Araçuaí belts, which occur to the west and east, respectively, of the SFC, also resulted from its reworking. Therefore, an area c. two times larger than the current outline of the SFC can be inferred, indicating an intense process of decratonization during the Brasiliano-Pan-African Orogeny. The intermittent late Paleoproterozoic to early Neoproterozoic extension-related magmatism in this Greater São Francisco paleocontinent contrasts with the worldwide occurrence of orogenic episodes accompanying the amalgamation of the Columbia supercontinent, its fragmentation, and the build-up of Rodinia. These differences suggest that Greater São Francisco was not part of these supercontinental assemblages.

在4.0-2.0 Ga的时间跨度内产生了70-80％的大陆壳，但是太古宙/早元古生代克拉通的保存面积小于40％。这种缺陷的部分原因可归因于古古生代中至生代造山带的基底中存在返工的旧地壳。在这里，我比较了巴西东部的巴西利亚-泛非-博尔博雷马省（BP）和巴西圣弗朗西斯科·克拉顿（SFC）的地壳演化，并重点介绍了许多地质方面，其中一些在其他克拉通/造山带中并不常见，说明他们在大多数前寒武纪时期都有共同的发展。其中包括：1.存在来自南美平台的最古老的岩石（从Eo到古近纪）。2.出现Siderian（2.5–2.3 Ga）岩石。3。在Transamazonian事件（2.2–2.0 Ga）期间，幼年地壳的产生和原有岩石的再加工。4.在1.78和1.50 Ga之间的间歇裂谷和板内岩浆事件。5.在1.0–0.85 Ga处侵入铁镁质岩性岩和A型花岗岩。6.大约在大约2个之间的板内特征侵入的镁铁质岩石，正长岩和花岗岩。0.71和0.64 Ga。7.缺乏有关火成岩和构造活动的证据。在大多数中元古代期间，在1.95和1.78 Ga之间，在0.85至0.73 Ga之间。SFC和BP中的Rhyacian造山事件的时间重合性支持这样一个假设，即它们是由太古宙/古古生代积聚形成的大陆的一部分。 Transamazonian造山运动中的岩石块和幼年的地壳。此外，从古生代晚期到新元古代的板块内构造学事件的记录表明，它们至少在中新生代之前一直保持统一。在这种情况下，BP可以解释为Brasiliano-Pan-African造山运动（约640-550 Ma）期间重新积聚和重做的SFC的一部分。最近的研究表明，分别发生在证监会西部和东部的巴西利亚和阿拉索阿带的大部分地下室也是由于其改造造成的。因此，区域c。可以推断出比目前SFC轮廓大两倍的现象，表明在Brasiliano-Pan-African造山运动中发生了强烈的非克拉通作用。在该大圣弗朗西斯科古大陆，古元古代晚期到新元古代早期延伸相关的岩浆作用是间歇性的，这与哥伦比亚超大陆合并，其破碎和罗迪尼亚的形成在全世界发生的造山事件形成了鲜明的对比。这些差异表明，大圣弗朗西斯科不属于这些超大陆组合。