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Study Presents New Clues About the Rise of Earth's Continents

Study Presents New Clues About the Rise of Earth's Continents
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Iron-depleted, oxidized chemistry of Earths continental crust not from crystallization of mineral garnet: Study

Washington, May 8: A new research attempted to determine the understanding of Earth s crust by testing and ultimately eliminating one popular hypothesis about why continental crust is lower in iron and more oxidized compared to oceanic crust. The iron-poor composition of continental crust is a major reason why vast portions of the Earth s surface stand above sea level as dry land, making terrestrial life possible today. ....

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Study presents new clues about the rise of ea

New research from the Smithsonian’s National Museum of Natural History and Cornell University deepens the understanding of Earth’s crust by testing and ultimately eliminating one popular hypothesis about why continental crust is lower in iron and more oxidized compared to oceanic crust. The iron-poor composition of continental crust is a major reason why vast portions of the Earth’s surface stand above sea level as dry land, making terrestrial life possible today. The study, published in Science, uses laboratory experiments to show that the iron-depleted, oxidized chemistry typical of Earth’s continental crust likely did not come from crystallization of the mineral garnet, as a popular explanation proposed in 2018. ....

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Solving the mystery of how Earth's continents arose

Iron-depleted, oxidized chemistry in Earth’s continental crust likely didn’t come from crystallization of the mineral garnet ....

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Mock lava worlds will help the Webb telescope understand exoplanets

A catalog of rock types that could be found on exoplanets covered in lava will aid researchers using the James Webb Space Telescope in characterizing these molten worlds. ....

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