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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 —... read more

Life in the Chicxulub Crater Years After It Was Formed


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Freeman awarded 2020 Nemmers Prize in Earth Sciences


Katherine Freeman, Evan Pugh University Professor of Geosciences at Penn State, has been awarded the 2020 Nemmers Prize in Earth Sciences. The prize is awarded by Northwestern University and... read more

Landscape to atomic scales: Researchers apply new approach to pyrite oxidation


Pyrite, or fool’s gold, is a common mineral that reacts quickly with oxygen when exposed to water or air, such as during mining operations, and can lead to acid mine drainage. Little is known,... read more

Researchers use minerals from ancient soils to reconstruct past climate


When the Paleocene ended and the Eocene began nearly 56 million years ago, Earth’s atmospheric carbon dioxide levels ranged between 1,400 and 4,000 parts per million (ppm). These carbon dioxide... read more