科学家在南极西部钻探了228米的岩心 发现了海洋化石 表明冰层在过去的温暖时期崩溃 Scientists drilled a 228-meter core under West Antarctica, finding marine fossils that show the ice sheet collapsed in past warm periods, raising sea levels by up to five meters.

科学家们从克拉里冰隆西南极冰盖下方取回了一个228米厚的沉积物岩芯,这是史上最深的钻探,揭示了过去温暖时期该区域曾经是开阔海洋的证据。 Scientists have retrieved a 228-meter sediment core from beneath the West Antarctic Ice Sheet at Crary Ice Rise, the deepest ever drilled, revealing evidence that the region was once open ocean during past warm periods. 海洋生物的化石表明,当全球气温升高,导致海平面升高5米时,冰层可能崩溃。 Fossils of marine organisms indicate the ice sheet likely collapsed when global temperatures were higher, contributing up to five meters of sea level rise. 该核心在两次尝试失败后收集,运输到新西兰1 100多公里,历时数百万年,将有助于完善气候模型,预测未来的冰损和海平面上升。 The core, collected after two failed attempts and transported over 1,100 km to New Zealand, spans millions of years and will help refine climate models to predict future ice loss and sea level rise.