阿德莱德大学的地球化学研究团队通过分析澳大利亚西部皮尔巴拉克拉通的古代火山岩，发现水在30多亿年前就已经深入地球内部并影响火山活动1。这项研究表明，地球早在现代板块构造形成之前，就已经进行了地表与深层内部之间的物质循环1。
研究人员提出了"滴洗作用"机制来解释这一过程：富含水分的冷地壳部分周期性地沉入地幔，释放的水帮助生成岩浆1。该发现已发表在《自然通讯》2026年第17卷第1期上，参与研究的机构还包括莫纳什大学、西澳大利亚地质调查局、科廷大学、澳大利亚国立大学、卡迪夫大学和德国海洋研究中心1。
A team of geochemists from the University of Adelaide has discovered evidence that water was already penetrating Earth's deep interior and driving volcanic activity more than 3 billion years ago.1 By studying ancient volcanic rocks from the Pilbara Craton in Western Australia, the researchers identified a mechanism they term "dripduction," in which water-rich sections of cold crust periodically sank into the mantle and released water that helped generate magma.1
This finding demonstrates that Earth was already cycling material between its surface and deep interior long before modern plate tectonics became established.1 The research, conducted by scientists from the University of Adelaide, Monash University, the Geological Survey of Western Australia, Curtin University, the Australian National University, Cardiff University, and the German Centre for Marine Research, has been published in Nature Communications, Volume 17, Issue 1, in 2026.1
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