科学家发现古老的沉积物在南极冰层下移动,揭示了影响冰流和气候预测的过程。 Scientists found ancient sediment moving under Antarctic ice, revealing processes that affect ice flow and climate predictions.

探寻南极洲古老冰层的科学家发现沉积物在冰层下移动,揭示了可能影响冰流和气候模型的复杂的冰川下过程。 Scientists searching for ancient ice in Antarctica discovered sediment moving beneath the ice sheet, revealing complex subglacial processes that could affect ice flow and climate models. 研究人员利用空中雷达查明了几百万年来由冰川下山脉冰流形成的沉积物层,这很可能是由地热驱动的。 Using airborne radar, researchers identified a sediment layer formed over millions of years by ice flowing down a subglacial mountain range, likely driven by geothermal heat. 这些调查结果与目前为寻找80万年以上的冰而正在进行的努力相关联,表明沉积物迁移可能会影响冰层的稳定性和气候记录的保存,从而影响对未来海平面上升的理解。 The findings, tied to ongoing efforts to find ice older than 800,000 years, suggest that sediment transport may influence ice sheet stability and the preservation of climate records, with implications for understanding future sea level rise.