As muddy sediments are pressed together, the gas and small droplets of oil may be squeezed out of the mud and may move into sandy layers nearby.
当泥质沉积物被挤压在一起时,气体和小油滴可能会从泥浆中被挤出,并进入附近的沙层。
2
These microscopic plants, commonly observed as a brown skin coating submerged stones in rivers and lakes and as phytoplankton in seas and oceans, typically contain oildroplets inside their cells.