ArticleScience advances2020
Calcium isotopic evidence for the mantle sources of carbonatites.
Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 80 citations in OpenAlex.
- Heavy potassium isotopes in carbonatites reveal oceanic crust subduction as the driver of deep carbon cycling.Science advances · 2025Article
- Calcium isotope compositions as a means to trace carbonate recycling.National science review · 2022Article
- Calcium isotope evidence for early Archaean carbonates and subduction of oceanic crust.Nature communications · 2021Article
- Reversal of carbonate-silicate cation exchange in cold slabs in Earth's lower mantle.Nature communications · 2021Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The origin of carbonatites-igneous rocks with more than 50% of carbonate minerals-and whether they originate from a primary mantle source or from recycling of surface materials are still debated. Calcium isotopes have the potential to resolve the origin of carbonatites, since marine carbonates are enriched in the lighter isotopes of Ca compared to the mantle. Here, we report the Ca isotopic compositions for 74 carbonatites and associated silicate rocks from continental and oceanic settings, spanning from 3 billion years ago to the present day, together with O and C isotopic ratios for 37 samples. Calcium-, Mg-, and Fe-rich carbonatites have isotopically lighter Ca than mantle-derived rocks such as basalts and fall within the range of isotopically light Ca from ancient marine carbonates. This signature reflects the composition of the source, which is isotopically light and is consistent with recycling of surface carbonate materials into the mantle.
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Registered trials
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