[HTML][HTML] Subducted carbonates not required: Deep mantle melting explains stable Ca isotopes in kimberlite magmas

MA Antonelli, A Giuliani, Z Wang, M Wang… - … et Cosmochimica Acta, 2023 - Elsevier
Ca isotope geochemistry has great potential for improving our understanding of magmatic
systems and for tracing the deep Earth carbon cycle. There are still many open questions …

Calcium isotope constraints on OIB and MORB petrogenesis: The importance of melt mixing

ZT Eriksen, SB Jacobsen - Earth and Planetary Science Letters, 2022 - Elsevier
Lithological and isotopic heterogeneity in the mantle archive the mantle's melting history and
fingerprint crustal recycling processes coupling the deep Earth with the terrestrial biosphere …

The potential of Ca isotopes to trace subducted marine carbonates in deep mantle

H Zhu, R Liao, L Du, Z Zhang - Journal of Oceanology and Limnology, 2024 - Springer
Marine carbonates, the major carrier of carbon upon the upper crust, can be subducted into
the Earth's interior along with oceanic crust, and then returned to the surface through …

Global trends in novel stable isotopes in basalts: Theory and observations

CR Soderman, O Shorttle, S Matthews… - … et Cosmochimica Acta, 2022 - Elsevier
The geochemistry of global mantle melts suggests that both mid-ocean ridge basalts
(MORB) and ocean island basalts (OIB) sample lithological and temperature heterogeneities …

Calcium isotopes in high-temperature terrestrial processes

MA Antonelli, JI Simon - Chemical Geology, 2020 - Elsevier
This chapter explores the growing body of stable and radiogenic Ca isotope measurements
in high temperature terrestrial materials and covers the emerging applications for Ca isotope …

Zinc isotope fractionation in mantle rocks and minerals, and a revised δ66Zn value for the Bulk Silicate Earth

SB Fang, J Huang, XC Zhang, DA Ionov… - … et Cosmochimica Acta, 2022 - Elsevier
The isotope composition of zinc (Zn) can be an important tracer of planetary formation and
differentiation, but estimates of the Bulk Silicate Earth (BSE) and the extent and origin of Zn …

Calcium isotope compositions of subduction-related leucite-bearing rocks: Implications for the calcium isotope heterogeneity of the mantle and carbonate recycling in …

H Ren, M Casalini, S Conticelli, C Chen… - … et Cosmochimica Acta, 2024 - Elsevier
Large Ca isotope variations recorded in mantle xenoliths and mantle-derived igneous rocks
have been widely used to decode the origin of mantle heterogeneity, especially to trace …

Calcium isotopic variability in hotspot lavas controlled by partial melting and source lithological heterogeneity

XJ Wang, LH Chen, T Hanyu, ZB Zhou, JQ Liu, G Zeng… - Chemical …, 2024 - Elsevier
Crustal recycling can induce significant chemical and lithological heterogeneity of the
mantle. Ocean island basalts (OIBs) are the surface expressions of rising mantle plumes …

The stable isotope character of the Earth's mantle–A review

DA Ionov, J Hoefs, R Harmon - Chemical Geology, 2024 - Elsevier
This review describes the stable isotope character of the Earth's mantle, the 2900 km thick
silicate layer between the core and crust that comprises 67% of the Earth's mass and 84% of …

Calcium isotopic fractionation during plate subduction: Constraints from back-arc basin basalts

H Zhu, L Du, X Li, Z Zhang, W Sun - Geochimica et Cosmochimica Acta, 2020 - Elsevier
Subduction related metasomatism has been proposed to be one of the most important
processes that may cause Ca isotopic heterogeneities in the mantle. Back-arc basin basalts …