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

Silicon isotope fractionation during microbial reduction of Fe(III)–Si gels under Archean seawater conditions and implications for iron formation genesis

Thiruchelvi R. Reddy, Xin‐Yuan Zheng, Eric Roden, Brian L. Beard, Clark M. Johnson

Geochimica et Cosmochimica Acta · 2016

Read source ↗ All evidence

Summary

This laboratory study investigates silicon isotope fractionation during microbial reduction of Fe(III)–silicate gels under conditions simulating Archean seawater, as suggested by the experimental design and title. The research contributes to understanding the isotopic signatures preserved in ancient banded iron formations and the role of microbial metabolic processes in their genesis. The findings may refine geochemical models of early Earth iron cycling and silica biogeochemistry.

UK applicability

This is fundamental geochemistry research with limited direct applicability to UK farming or soil management practice. The findings are relevant primarily to Earth science education and our understanding of ancient biogeochemical cycles.

Key measures

Silicon isotope ratios (δ30Si) during microbial Fe(III) reduction; fractionation factors; isotopic composition of reaction products

Outcomes reported

The study examined silicon isotope fractionation patterns during microbial reduction of Fe(III)–silicate gels under simulated Archean seawater conditions. The research provides isotopic evidence relevant to understanding the geochemical processes underlying ancient iron formation deposition.

Theme
Measurement & metrics
Subject
Soil biology & microbiology
Study type
Research
Study design
Laboratory experiment
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Laboratory / in vitro
DOI
10.1016/j.gca.2016.06.035
Catalogue ID
BFmokjoedh-6alefc

Topic tags

Pulse AI · ask about this record

Dig deeper with Pulse AI.

Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.