The Australia-Laurentia connection in the Paleoproterozoic to Mesoproterozoic supercontinent Nuna is thought to have initiated by ca. 1.6 Ga when both continents were locked in a proto-SWEAT (southwestern U.S.–East Antarctic) configuration. However, the longevity of that configuration is poorly constrained. Here, we present a new high-quality paleomagnetic pole from the ca. 1.3 Ga Derim Derim sills of northern Australia that suggests Australia and Laurentia were in the same configuration at that time. This new paleopole also supports a connection between Australia and North China and, in conjunction with previously reported data from all continents, indicates that the breakup of Nuna largely occurred between ca. 1.3 and 1.2 Ga.

中文翻译：

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努纳超大陆核心地带澳大利亚-劳伦西亚号连接持续时间的古磁约束

据认为，古元古代至中元古代超大陆努纳的澳大利亚-劳伦西亚连接起因于。当两个大洲都被锁定在原始SWEAT（美国西南部-南极东部）构造中时，则为1.6 Ga。但是，该配置的寿命受到了严格限制。在这里，我们从ca提出了一个新的高质量古磁极。1.3 Ga Derim澳大利亚北部的Derim窗台表明澳大利亚和Laurentia当时处于同一配置。这个新的古极也支持澳大利亚和华北之间的联系，并与先前报道的来自各大洲的数据相结合，表明努纳河的破裂主要发生在约旦河之间。1.3和1.2 Ga。