1. Regions of the ancient lavafield, which flowed from volcanoes 201.4m years ago, are preserved in sediments in Newark and Hartford, in the north-eastern US.
这些201.4万年前从火山口流下的古老熔岩被保存在美国东北部纽瓦克和哈特福德的沉积物中。
来自互联网
2. This lavafield just north of the Mýrdalsjökull ice cap serves as one of many monitoring sites to track ground deformation that could serve as a signal of an impending eruption of Katla.
3. As the rocks cool from lava, for instance at the deep mid-ocean ridges where the earth's surface plates are formed, crystals line up with the direction of the magnetic field.
4. As the rocks cool from lava, for instance at the deep mid-ocean ridges where the earth's surface plates are formed, crystals line up with the direction of the magnetic field.
