Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialConference paper

Tracing Diagenetic Smectite-To-Illite Transition Using Stable K Isotopes

Xin‐Yuan Zheng, Brian L. Beard, W. Crawford Elliott, Clark M. Johnson

Goldschmidt Abstracts · 2020

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Summary

This geochemical study examined stable potassium isotope fractionation as a tracer for the diagenetic transformation of smectite clay minerals to illite during burial and thermal maturation. As suggested by the title, the authors developed isotopic methods to fingerprint this mineralogical transition, which has implications for understanding clay diagenesis in sedimentary systems. The work appears to contribute to fundamental geochemical understanding of clay mineral behaviour rather than direct agricultural or food system application.

UK applicability

This fundamental geochemistry research has limited direct applicability to UK farming, food systems, or soil health practice. However, improved understanding of clay mineral diagenesis may indirectly inform long-term soil formation and weathering processes relevant to soil science education and geoarchaeological studies.

Key measures

Stable potassium (K) isotope ratios; smectite-to-illite conversion rates; diagenetic mineral phase transitions

Outcomes reported

The study used stable potassium isotope ratios to trace the diagenetic transformation of smectite to illite in clay minerals. The research evaluated whether K isotope fractionation could serve as a geochemical marker for this mineralogical transition.

Theme
Measurement & metrics
Subject
Measurement methods & nutrient profiling
Study type
Research
Study design
Laboratory / in vitro
Source type
Conference paper
Status
Published
System type
Laboratory / in vitro
DOI
10.46427/gold2020.3186
Catalogue ID
BFmokjoedi-b3x8w4

Topic tags

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