An intercomparison of planetary evolution codes finds Earth magma oceans solidify in about 4 million years while Venus scenarios show more varied prolonged stages up to 50 million years, with outcomes sensitive to initial volatile budgets and model-specific treatments.
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Water-rich formation produces CH4- and CO2-rich atmospheres while water-poor formation produces carbon-depleted ones, with soot boosting methane; the H2O/CH4-MMW plane diagnoses formation environment for JWST targets.
citing papers explorer
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Coupled atmospHere Interior modeL Intercomparison (CHILI). I. Evolutionary Modelling -- Primordial Magma Oceans of Earth and Venus
An intercomparison of planetary evolution codes finds Earth magma oceans solidify in about 4 million years while Venus scenarios show more varied prolonged stages up to 50 million years, with outcomes sensitive to initial volatile budgets and model-specific treatments.
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Atmospheric diversity of sub-Neptunes from formation with rock, water, and soot
Water-rich formation produces CH4- and CO2-rich atmospheres while water-poor formation produces carbon-depleted ones, with soot boosting methane; the H2O/CH4-MMW plane diagnoses formation environment for JWST targets.