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

Early Archean biogeochemical iron cycling and nutrient availability: New insights from a 3.5 Ga land-sea transition

Clark M. Johnson, Xin‐Yuan Zheng, Tara Djokic, Martin J. Van Kranendonk, Andrew D. Czaja, Eric Roden, Brian L. Beard

Earth-Science Reviews · 2022

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Summary

This paper synthesises geochemical evidence from a 3.5 Ga land-sea transition deposit to elucidate early Archean iron cycling and nutrient dynamics. As suggested by the title and journal context, the authors integrate iron isotope systematics with sedimentological and mineralogical observations to illuminate biogeochemical processes operating in early Earth environments, with implications for understanding the evolution of nutrient availability during the early biosphere.

UK applicability

This study addresses fundamental early Earth biogeochemistry rather than contemporary agriculture or food systems, and therefore has no direct applicability to UK farming, soil management, or food production practices.

Key measures

Iron isotope ratios, geochemical proxies for iron speciation and redox state, nutrient bioavailability indicators in early Archean sediments

Outcomes reported

The study examined iron cycling processes and nutrient availability patterns in a 3.5 billion-year-old land-sea transition environment, using geochemical and isotopic evidence to infer biogeochemical conditions.

Theme
Climate & resilience
Subject
Other / interdisciplinary
Study type
Research
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Other
DOI
10.1016/j.earscirev.2022.103992
Catalogue ID
BFmor3gfpg-klhot8

Topic tags

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