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A new analysis of ceramic chips embedded in meteorites suggests the formation of our solar system was not as quiet and orderly as we once thought.
The new study builds evidence that the baby solar system likely witnessed wild temperature swings and changing conditions. That contradicts the decades-old theory that the solar system had gradually and steadily cooled following the formation of the sun.
The study finds its answers in gifts from outer space. Because rocks on Earth are constantly pulled under tectonic plates, melted, and reformed, they don’t offer much evidence for what our solar system looked like four and half billion years ago. Instead, scientists look to meteorites.
Analysis by UChicago scientists reverses earlier findings, suggests large temperature swings
A new analysis of ceramic chips embedded in meteorites suggests the formation of our solar system was not as quiet and orderly as we once thought.
A new study from University of Chicago scientists builds evidence that the baby solar system likely witnessed wild temperature swings and changing conditions contradicting the decades-old theory that the solar system had gradually and steadily cooled following the formation of the Sun.
Published Jan. 6 in
Science Advances, the study finds its answers in gifts from outer space. Because rocks on Earth are constantly pulled under tectonic plates, melted and reformed, they don’t offer much evidence for what our solar system looked like four and half billion years ago. Instead, scientists look to meteorites.
New Study Helps Pinpoint When Earth’s Plate Subduction Began
A new study from scientists at Scripps Institution of Oceanography at UC San Diego and the University of Chicago sheds light on a hotly contested debate in Earth sciences: when did plate subduction begin?
According to findings published Dec. 9 in the journal Science Advances, this process could have started 3.75 billion years ago, reshaping Earth’s surface and setting the stage for a planet hospitable to life.
For geochemists like Scripps assistant professor and study lead author Sarah Aarons, the clues to Earth’s earliest habitability lie in the elements that ancient rocks are composed of – specifically titanium. Aarons analyzed samples of Earth’s oldest-known rocks from the Acasta Gneiss Complex in the Canadian tundra – an outcrop of gneisses 4.02 billion years old. These rocks are dated from the Hadean eon, which started at the beginning of Earth’s formation and was defined by hellish conditions on a pla
New study helps pinpoint when Earth’s tectonic plates began
Dec 11, 2020 Rocks tell story of planet’s transition from alien landscape to continents, oceans and life
Every year, earthquakes shake the ground and volcanoes erupt around the edges of tectonic plates the massive pieces of Earth’s crust that slide slowly across the planet, creating and destroying mountains and oceans on the scale of eons. But the question of when this plate subduction actually began has been a hotly contested debate in earth sciences.
A new study from scientists at Scripps Institution of Oceanography at UC San Diego and the University of Chicago sheds light on this burning question. According to findings published Dec. 9 in the journal