The Natal Valley, offshore Mozambique, is a key area for understanding the evolution of East Gondwana. Within the scope of the integrated multidisciplinary PAMELA project, we present new wide‐angle seismic data and interpretations, which considerably alter Geoscience paradigms. These data reveal the presence of a 30‐km‐thick crust that we argue to be of continental nature. This falsifies all the most recent palaeo‐reconstructions of the Gondwana. This 30‐km‐thick continental crust 1,000 m below sea level implies a complex history with probable intrusions of mantle‐derived melts in the lower crust, connected to several occurrences of magmatism, which seems to evidence the crucial role of the lower continental crust in passive margin genesis.

中文翻译：

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冈瓦纳分手：北纳塔尔山谷的来信

莫桑比克近海的纳塔尔山谷是了解东贡瓦纳演变的关键地区。在综合的多学科PAMELA项目范围内，我们提出了新的广角地震数据和解释，这大大改变了地球科学的范式。这些数据揭示了一个30公里厚的地壳的存在，我们认为这是大陆性的。这篡改了冈瓦纳的所有最新古重建。海拔1000米以下的30公里厚的大陆壳暗示着一个复杂的历史，可能是下地壳可能侵入了地幔衍生的熔体，并与几次岩浆作用有关，这似乎证明了下大陆壳在海平面上的关键作用。被动边缘发生。