Closure and opening of oceans on time‐scales of a few hundred million years is a fundamental tectonic process on Earth, typically referred to as a “Wilson cycle”. Subduction of oceanic and continental crust leading up to and during continent–continent collision can refertilize and enrich the orogenic continental lithospheric mantle in heat‐producing elements. The resulting thermal anomaly weakens the lithosphere and, along with structural weaknesses (e.g. sutures), make this orogenic lithosphere more prone to rifting given an extensional stress field. Thermal modelling shows that anomalously hot lithosphere can focus asthenospheric upwellings over time‐scales of a few hundred million years. Processes related to closure of oceans thus provide a mechanism for later localization of rifting and an extensional driving force.

中文翻译：

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大陆裂谷和初始海洋扩散的放射触发和驱动力

在几亿年的时间尺度上，海洋的封闭和开放是地球上的一个基本构造过程，通常被称为“威尔逊循环”。在大陆-大陆碰撞之前以及期间，洋壳和大陆壳的俯冲作用可以使生热的大陆岩石圈地幔中的热量产生元素富集。由此产生的热异常会削弱岩石圈，并伴随结构性弱点（例如缝合线），使该造山岩石圈在扩展应力场的作用下更容易裂口。热力模型表明，异常热的岩石圈可以在几亿年的时间尺度上集中于软流圈上升。因此，与海洋封闭有关的过程为以后的裂谷定位和扩展的驱动力提供了一种机制。