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。