Bulk Chondrite Nucleosynthetic Isotope Dichotomy
Channel: Dominik Hezel
Date: 2019-10-21

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Meteorites are separated into two groups based on their nucleosynthetic anomalies (e.g., 54Cr vs 50Ti): carbonaceous chondrites and non-carbonaceous chondrites. One explanation could be that  presolar grains with largely different isotope ratios were mixed to carbonaceous chondrites in the outer solar system, while the non-carbonaceous chondrite did not receive these presolar grains, as these were gravitationally shielded by Jupiter.