Authors: Damanveer S. Grewal, Rajdeep Dasgupta, Sanath Aithala Abstract: Partitioning of carbon (C) into the cores of rocky protoplanets and planets is one of the primary causes of its depletion in their bulk silicate reservoirs. Most of the experimental studies that determined the alloy to silicate melt partition coefficient of carbon (DCalloy/silicate) have been conducted in graphite-saturated conditions. […]
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Authors: Damanveer S. Grewal, Rajdeep Dasgupta, Taylor Hough, Alexandra Farnell Abstract: The effect of protoplanetary differentiation on the fate of life-essential volatiles like nitrogen and carbon and its subsequent effect on the dynamics of planetary growth is unknown. Because the dissolution of nitrogen in magma oceans depends on its partial pressure and oxygen fugacity, it […]
Authors: Damanveer S. Grewal, Rajdeep Dasgupta, & Bernard Marty Abstract: Understanding the origin of life-essential volatiles such as nitrogen (N) in the Solar System and beyond is critical to evaluate the potential habitability of rocky planets. Whether the inner Solar System planets accreted these volatiles from their inception or had an exogenous delivery from the […]
GCA: The speciation of carbon, nitrogen, and water in magma oceans and its effect on volatile partitioning between major reservoirs of the Solar System rocky bodies Damanveer S. Grewal, Rajdeep Dasgupta, Alexandra Farnell The composition of atmospheres and the resulting potential for planetary habitability in the rocky bodies of our Solar System and beyond is […]
Rajdeep Dasgupta, Damanveer S. Grewal Summary This chapter reviews what is known about the fate of carbon during early differentiation of inner solar system planets. It reviews the nature of carbon fractionation in a magma ocean as compared to the core, mantle, and atmosphere, and how this may have varied between planetary bodies in the […]
The fate of nitrogen during core-mantle separation on Earth Damanveer S. Grewal, Rajdeep Dasgupta, Alexandra K. Holmes, Gelu Costin, Yuan Li, Kyusei Tsuno Nitrogen, the most dominant constituent of Earth’s atmosphere, is critical for the habitability and existence of life on our planet. However, its distribution between Earth’s major reservoirs, which must be largely influenced […]
Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact Damanveer S. Grewal, Rajdeep Dasgupta, Chenguang Sun, Kyusei Tsuno and Gelu Costin Earth’s status as the only life-sustaining planet is a result of the timing and delivery mechanism of carbon (C), nitrogen (N), sulfur (S), and hydrogen (H). On the basis of their isotopic signatures, terrestrial […]
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