basaltic

Frantz Josef Land is a basaltic plateau split into many islands and covered with ice..法兰仕约瑟夫地的群岛是由一个玄武岩高原分裂而成的，终年覆盖着冰雪。

In this image streaks of dark basaltic sand have been carried frombelow the ice layer to form fan-shaped deposits on top of the seasonalice..在这幅图像中黑色玄武岩沙带被从冰层下面显露出来，在季节性冰盖的顶部形成扇形堆积。

Researchers have found the deposits contain opaline silica and iron sulfates, which you would expect to find if acidic water once flowed over basaltic materials in low temperatures..研究人员发现，这些沉积物中含有乳白石英和铁硫酸盐，而这些东西只出现在低温状态下被酸性水侵蚀的玄武岩地区。