Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Stable potassium (K) isotope characteristics at mid-ocean ridge hydrothermal vents and its implications for the global K cycle

Xin‐Yuan Zheng, Brian L. Beard, Mason Neuman, M. F. Fahnestock, J. G. Bryce, Clark M. Johnson

Earth and Planetary Science Letters · 2022

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Summary

This geochemical study examined stable potassium isotope signatures in mid-ocean ridge hydrothermal systems to better understand potassium cycling at the ocean–lithosphere interface. By measuring isotopic ratios in vent fluids and mineral phases, the authors as suggested by the title sought to quantify potassium fluxes and fractionation processes relevant to global biogeochemical cycling. The work contributes to understanding how submarine hydrothermal activity influences the global potassium budget.

UK applicability

This is a marine geochemistry study with indirect relevance to UK agricultural systems. Understanding global potassium cycling may inform long-term perspectives on nutrient availability, but the research does not directly address farming practices or soil management in UK conditions.

Key measures

Stable potassium (K) isotope ratios (δ41K) in hydrothermal fluids and precipitates; potassium concentration; isotopic fractionation factors

Outcomes reported

The study characterised stable potassium isotope ratios in fluids and minerals from mid-ocean ridge hydrothermal vents. The findings were used to constrain potassium fluxes and isotopic fractionation in the global potassium cycle.

Theme
General food systems / other
Subject
Other / interdisciplinary
Study type
Research
Study design
Laboratory / geochemical analysis
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Other
DOI
10.1016/j.epsl.2022.117653
Catalogue ID
BFmor3gfpg-qffm33

Topic tags

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