Tectonics

Mantle plume vs. plate tectonics: Basalt cores reshape the North Atlantic breakup debate

• About 56 million years ago, Europe and North America began pulling apart to form what became the ever-expanding North Atlantic Ocean. • Vast amounts of molten rock from Earth’s m

The Moon is still shrinking and it could trigger more moonquakes

• Scientists map small mare ridges (SMRs), revealing active tectonic features across lunar maria. • SMRs are young, widespread, and indicate recent Moon contraction and stress buil