Earth ChangesFresh lava from Earth’s mantle found bursting onto the surface where a new ocean is forming Posted on July 13, 2025 by Administrator Deep beneath the Earth’s surface, in a layer called the mantle, heat builds up and pulses, causing rock to slowly rise toward the crust. This movement is known as a mantle upwelling, and it plays a major role in forming volcanoes, breaking continents apart, and even creating new ocean basins.
