Cores

Archived tree cores reveal why boreal forests are getting starved for nitrogen

• Despite decades of industrial deposition, nitrogen availability in the boreal forest is steadily declining. • In a new study published in Nature, researchers from the Swedish Uni

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