Molybdenum isotope composition of the upper mantle and its origin: insight from mid-ocean ridge basalt

Shuo CHEN

doi:10.1007/s00343-024-3250-6

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Molybdenum isotope composition of the upper mantle and its origin: insight from mid-ocean ridge basalt

Deep Sea | Updated：2026-05-18

- Molybdenum isotope composition of the upper mantle and its origin: insight from mid-ocean ridge basalt
- Journal of Oceanology and Limnology Vol. 42, Issue 3, Pages: 705-708(2024)
- Affiliations：
  
  Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Author bio：
  
  shuochen@qdio.ac.cn
- Funds：
- DOI：10.1007/s00343-024-3250-6
  CLC：
- Received：21 November 2023，
  
  Online First：12 January 2024，
  
  Published：01 May 2024
- Accepted：
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CHEN Shuo.Molybdenum isotope composition of the upper mantle and its origin: insight from mid-ocean ridge basalt[J].Journal of Oceanology and Limnology,2024,42(03):705-708.
DOI：

CHEN Shuo.Molybdenum isotope composition of the upper mantle and its origin: insight from mid-ocean ridge basalt[J].Journal of Oceanology and Limnology,2024,42(03):705-708. DOI： 10.1007/s00343-024-3250-6.

摘要

Abstract

The molybdenum (Mo) isotope system is pivotal in reconstructing marine redox changes throughout Earth’s history and has emerged as a promising tracer for igneous and metamorphic processes. Understanding its composition and variation across major geochemical reservoirs is essential for its application in investigating high-temperature processes. However

there is debate regarding the δ

98/95

Mo value of the Earth’s mantle

with estimates ranging from sub-chondritic to super-chondritic values. Recent analyses of global mid-ocean ridge basalt (MORB) glasses revealed significant δ

98/95

Mo variations attributed to mantle heterogeneity

proposing a two-component mixing model to explain the observed variation. Complementary studies confirmed the sub-chondritic δ

98/95

Mo of the depleted upper mantle

suggesting remixing of subduction-modified oceanic crust as a plausible mechanism. These findings underscore the role of Mo isotopes as effective tracers for understanding dynamic processes associated with mantle-crustal recycling.

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references

Bezard R , Fischer-Gödde M , Hamelin C et al . 2016 . The effects of magmatic processes and crustal recycling on the molybdenum stable isotopic composition of Mid-Ocean Ridge Basalts . Earth and Planetary Science Letters , 453 : 171 - 181 , https://doi.‍‍org/10.1016/j.epsl.2016.07.056 https://doi.‍‍org/10.1016/j.epsl.2016.07.056 . https://do 10.1016/j.epsl.2016.07.056 http://dx.doi.org/10.1016/j.epsl.2016.07.056

Burkhardt C , Hin R C , Kleine T et al . 2014 . Evidence for Mo isotope fractionation in the solar nebula and during planetary differentiation . Earth and Planetary Science Letters , 391 : 201 - 211 , https://doi.‍org/10.1016/j.epsl.2014.01.037 https://doi.‍org/10.1016/j.epsl.2014.01.037 . https://do 10.1016/j.epsl.2014.01.037 http://dx.doi.org/10.1016/j.epsl.2014.01.037

Chen S , Hin R C , John T et al . 2019 . Molybdenum systematics of subducted crust record reactive fluid flow from underlying slab serpentine dehydration . Nature Communications , 10 ( 1 ): 4773 , https://doi.org/10.1038/s41467-019-12696-3 https://doi.org/10.1038/s41467-019-12696-3 .

Chen S , Sun P , Niu Y L et al . 2022 . Molybdenum isotope systematics of lavas from the East Pacific Rise: constraints on the source of enriched mid-ocean ridge basalt . Earth and Planetary Science Letters , 578 : 117283 , https://doi.org/10.1016/j.epsl.2021.117283 https://doi.org/10.1016/j.epsl.2021.117283 .

Freymuth H , Vils F , Willbold M et al . 2015 . Molybdenum mobility and isotopic fractionation during subduction at the Mariana arc . Earth and Planetary Science Letters , 432 : 176 - 186 , https://doi.org/10.1016/j.epsl.2015.10.006 https://doi.org/10.1016/j.epsl.2015.10.006 .

Greber N D , Puchtel I S , Nägler T F et al . 2015 . Komatiites constrain molybdenum isotope composition of the Earth's mantle . Earth and Planetary Science Letters , 421 : 129 - 138 , https://doi.org/10.1016/j.epsl.2015.03.051 https://doi.org/10.1016/j.epsl.2015.03.051 .

Hin R C , Hibbert K E J , Chen S et al . 2022 . The influence of crustal recycling on the molybdenum isotope composition of the Earth's mantle . Earth and Planetary Science Letters , 595 : 117760 , https://doi.org/10.1016/j.epsl.2022.117760 https://doi.org/10.1016/j.epsl.2022.117760 .

Kendall B , Dahl T W , Anbar A D . 2017 . The stable isotope geochemistry of molybdenum . Reviews in Mineralogy and Geochemistry , 82 ( 1 ): 683 - 732 , https://doi.org/10.2138/rmg.2017.82.16 https://doi.org/10.2138/rmg.2017.82.16 .

Liang Y H , Halliday A N , Siebert C et al . 2017 . Molybdenum isotope fractionation in the mantle . Geochimica et Cosmochimica Acta , 199 : 91 - 111 , https://doi.org/10.1016/j.gca.2016.11.023 https://doi.org/10.1016/j.gca.2016.11.023 .

McCoy-West A J , Chowdhury P , Burton K W et al . 2019 . Extensive crustal extraction in Earth's early history inferred from molybdenum isotopes . Nature Geoscience , 12 ( 11 ): 946 - 951 , https://doi.org/10.1038/s41561-019-0451-2 https://doi.org/10.1038/s41561-019-0451-2 .

Miller D M , Goldstein S L , Langmuir C H . 1994 . Cerium/lead and lead isotope ratios in arc magmas and the enrichment of lead in the continents . Nature , 368 ( 6471 ): 514 - 520 , https://doi.org/10.1038/368514a0 https://doi.org/10.1038/368514a0 .

Niu Y L , Regelous M , Wendt I J et al . 2002 . Geochemistry of near-EPR seamounts: importance of source vs. process and the origin of enriched mantle component . Earth and Planetary Science Letters , 199 ( 3-4 ): 327 - 345 , https://doi.org/10.1016/S0012-821X(02)00591-5 https://doi.org/10.1016/S0012-821X(02)00591-5 .

Salters V J M , Stracke A . 2004 . Composition of the depleted mantle . Geochemistry, Geophysics, Geosystems , 5 ( 5 ): Q05 B 07 , https://doi.org/10.1029/2003gc000597 https://doi.org/10.1029/2003gc000597 .

Wang Z C , Becker H . 2018 . Molybdenum partitioning behavior and content in the depleted mantle: insights from Balmuccia and Baldissero mantle tectonites (Ivrea Zone, Italian Alps) . Chemical Geology , 499 : 138 - 150 , https://doi.org/10.1016/j.chemgeo.2018.09.023 https://doi.org/10.1016/j.chemgeo.2018.09.023 .

Willbold M , Elliott T . 2017 . Molybdenum isotope variations in magmatic rocks . Chemical Geology , 449 : 253 - 268 , https://doi.org/10.1016/j.chemgeo.2016.12.011 https://doi.org/10.1016/j.chemgeo.2016.12.011 .

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