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Similar to using a big spoon to stir a pot of tomato sauce, sinking tectonic plates into the Earth’s mantle generate flow patterns. And if you shift stirring styles then the mantle will be mixed together in a different way. A new study by CEED researcher Valentina Magni, published in Earth and Planetary Science Letters, shows how mantle flow can cause changes in melt production and composition at volcanic arcs.
Today Mars is dry, cold and has an atmosphere a hundred times thinner than the Earth’s. However, more than 3.7 billion years ago Mars was likely more humid and warmer than our planet today. But how was this possible? A new study by Benjamin Bultel and coworkers from CEED, IMPMC (Institut de Minéralogie, Physique des Matériaux et Cosmochimie) and IAS (Institut d’Astrophysique Spatiale), published in the Journal of Geophysical Research-Planets, has discovered a new piece of puzzle of the early Mars climate. They found that surface carbonates formed in a CO2-rich atmosphere that was much thicker than present.
The world's oceans are blanketed in sediments - in some places the sedimentary cover is very thick and in other places it is just a mere sprinkling. New work by CEED and international collaborators reveals a new and improved map of sedimentary thickness for the world's oceans, and it reveals far more sediments than previously thought!
Oceanic transform faults and fracture zones are scars in the seafloor that can generate large magnitude earthquakes and possibly destructive tsunamis. These major seafloor corrugations occur over much of our oceans, forming subparallel elongated valleys more than 2,000 m deep and extending for thousands of kilometers in length. The thriving of unique life forms, sheltered by these morphological barriers, is fueled by the deep rising fluids within these zones. A new manuscript published in Frontiers in Earth Science from members of the European Consortium “FLOWS,” including CEED Researcher Adriano Mazzini, provides an overview on many of the unknown and intriguing aspects of these underexplored regions of our oceans.