Geoscientists use zircon to trace origin of Earth's continents

Geoscientists have long known that some parts of the continents formed in the Earth's deep past, but the speed in which land rose above global seas—and the exact shapes that land masses formed—have so far eluded experts.

European colonization accelerated erosion tenfold

Rates of soil erosion and alluvium accumulation in North America accelerated 10-fold after Europeans colonized the continent, according to new research carried out by scientists from China, Belgium and U.S..

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