Volcano crystal balls Magma, the super-hot molten rock which feeds volcanic eruptions, is generated many tens of kilometers below the surface in Earth's mantle. On its journey up to the surface ...

About 400 kilometers northwest of Sydney, just south of Dubbo, lies a large and interesting body of rock formed around 215 ...

Its surface is in great part traversed by mountainous ridges, which form an intricate system, and consist in each case of an axis of basic and often coarsely crystalline volcanic rocks concealed ...

Crystals in the mantle take a long time to ... The stable LLSVPs might help explain why volcanic rocks in different parts of the world have different compositions or how tectonic plates are ...

An enormous water reservoir — likely the largest aquifer of its kind in on Earth — sits inside the volcanic rocks of the Oregon Cascades, scientists have revealed. A hidden reservoir of ...

Researchers from the University of Oregon and other institutions have identified an aquifer—a layer of water-saturated rock or sediment—beneath volcanic rocks at the crest of the central ...

Crystals in the mantle take a long time to ... This process may help explain the geological composition of volcanic rocks around the world. | Credit: Utrecht University "They must have been ...