The tectonically complex Indonesian Gateway is part of the global thermohaline circulation and exerts a major control on climate. Waters from the Pacific flow through the Indonesian Archipelago into the Indian Ocean via the Indonesian Throughflow. Much progress has been made toward understanding the near-modern history of the Indonesian Gateway. However, the longer-term climate and ocean consequences of Australia's progressive collision with the Eurasian Plate that created it are less known. The gateway initiated ∼23 Ma, when Australia collided with Southeast Asia. By ∼10 Ma the gateway was sufficiently restricted to create a proto–warm pool. During the Pliocene it alternated between more or less restricted conditions, until modern oceanic conditions were established by 2.7 Ma. Despite its tectonic complexity, climate modeling and Indian and Pacific scientific ocean drilling research continue to yield insights into the gateway's deep history. ▪The Indonesian Gateway is a key branch of global thermohaline oceanic circulation, exerting a major control on Earth's climate over the last 25 Myr.▪We find that a complex interplay of tectonics and sea level has controlled Indonesian Gateway restriction since 12 Myr, resulting in La Niña– and El Niño–like states in the equatorial Pacific.▪Long term Indonesian Gateway history is best determined from ocean drilling cores on the Indian and Pacific sides of the Indonesian Gateway, as records from within it are typically disrupted by tectonics.▪Model simulations show the global impact of the Indonesian Gateway. Further modeling with ocean drilling/tectonic research will enhance our understanding of Cenozoic Indonesian Gateway history.

中文翻译：

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印度尼西亚门户的新生代历史


构造复杂的印度尼西亚门户是全球温盐环流的一部分，对气候产生重大控制。来自太平洋的水域通过印度尼西亚群岛通过印度尼西亚流入印度洋。在理解印度尼西亚门户的近代历史方面已经取得了很大进展。然而，澳大利亚与产生它的欧亚板块的逐渐碰撞对气候和海洋的长期影响却鲜为人知。当澳大利亚与东南亚相撞时，门户开始了 ∼23 马。到 ∼10 马 时，网关受到足够的限制，可以创建一个原型暖池。在上新世，它在或多或少的限制条件之间交替，直到 2.7 马 建立现代海洋条件。尽管其构造复杂，但气候建模以及印度和太平洋的科学海洋钻探研究继续深入了解该门户的深厚历史。▪印度尼西亚门户是全球温盐海洋环流的一个关键分支，在过去 25 Myr 中对地球气候施加了重大控制。▪我们发现，自 12 Myr 以来，构造和海平面的复杂相互作用一直控制着印度尼西亚门户的限制，导致赤道太平洋出现类似拉尼娜和厄尔尼诺的状态。 ▪Gateway，因为它内部的记录通常会被构造破坏。▪模型模拟显示了印度尼西亚门户的全球影响。使用海洋钻探/构造研究进行进一步建模将增强我们对新生代印度尼西亚门户历史的理解。