Researchers reveal a dynamic geologic past for Antarctica’s Transantarctic Mountains, uncovering ancient mountain-building ...

Yooperlites are a variety of sodalite-rich syenite found in the Upper Peninsula of Michigan.

Geologists recently dated the age of Watersmeet gneiss, a type of rock in the Upper Peninsula, as the oldest in the U.S. Here ...

"Dating zircon grains using ... techniques is now celebrated as the optimal method for determining when igneous rocks formed," the report said. The technique involves measuring the decay of ...

Granite and other rocks made from recycled magma Igneous rocks, which form from magma (which is called lava when it erupts on the surface), aren’t anything special in our solar system.

Instead, researchers are now exploring the possibility that Skull Hill could be a chunk of igneous rock, formed from cooling magma and potentially ejected by an impact event or uncovered by erosion.

Another theory suggests that "Skull Hill" is actually an igneous rock, formed by the cooling of lava or magma. It could have happened a million or even a billion years ago. "Fortunately for us ...

If it is not meteoritic in origin, another hypothesis is that it is an igneous rock, formed by the cooling of magma or lava, explained a member of the science team. On both Earth and Mars, iron- and ...

Another theory is that Skull Hill is an igneous rock formed when lava or magma cooled, possibly millions or billions of years ago. Such rocks are common on both Earth and Mars and often contain ...

Another theory is that it’s an igneous rock, formed by cooled lava or magma, which could make it millions—or even billions—of years old. Deahn said the team is planning more tests to ...

The mysterious rock – dubbed “Skull Hill” was discovered April 11 by the Perseverance rover while it was driving down a ridge called Witch Hazel Hill. The hill is part of the Jezero Crater ...