[ELSP] A comprehensive model of the Cambrian explosion featuring “multi-factors coupling and multi-sphere driving”. Supercontinent breakup and mantle plume activity served as the initial trigger of environmental change in the […]
Subduction
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Habitable Zones, Origin & Evolution of Life, Press Release
Ancient Rocks Reveal Evidence Of The First Continents And Crust Recycling Processes On Earth
New research led by scientists at the University of Wisconsin–Madison has uncovered chemical signatures in zircons, the planet’s oldest minerals, that are consistent with subduction and extensive continental crust during […]
Posted inAstrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Comets and Asteroids, Fossils & Paleontology, Mapping, Geodesy, Cartography, Bathymetry, Meteorites & Asteroids, Press Release
Understanding The Structure Of Ancient Earth
A team of researchers has made strides in understanding the formation of massif-type anorthosites, enigmatic rocks that only formed during the middle part of Earth’s history. These plagioclase-rich igneous rock […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Extinction events, Impact events, Moon, Status Report
A Giant Impact Origin For The First Subduction on Earth
Hadean zircons provide a potential record of Earth’s earliest subduction 4.3 billion years ago. It remains enigmatic how subduction could be initiated so soon after the presumably Moon-forming giant impact […]
Posted inHabitable Zones, Press Release
Habitability from Tidally-Induced Tectonics
The stability of Earth’s climate on geological timescales is enabled by the carbon-silicate cycle that acts as a negative feedback mechanism stabilizing surface temperatures via the intake and outgas of […]