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

Oxygen and U-Th isotopes and the timescales of hydrothermal exchange and melting in granitoid wall rocks at Mount Mazama, Crater Lake, Oregon

Meagan E. Ankney, Charles R. Bacon, John W. Valley, Brian L. Beard, Clark M. Johnson

Geochimica et Cosmochimica Acta · 2017

Read source ↗ All evidence

Summary

This geochemical study employs oxygen and uranium-thorium isotope analysis of granitoid wall rocks from Mount Mazama, Crater Lake, Oregon, to constrain timescales and mechanisms of hydrothermal fluid exchange and partial melting in magmatic systems. The isotopic signatures preserved in the rocks provide evidence for the duration and intensity of magmatic-hydrothermal interaction during the volcano's evolution. The findings contribute to fundamental understanding of crustal-scale geochemical processes in subduction-zone volcanoes, but have no direct application to agricultural or food systems research.

UK applicability

This fundamental volcanology study has no direct applicability to UK agricultural practice, soil health, or food production systems. The research contributes to pure geochemical science rather than applied food or farming research.

Key measures

Oxygen isotope ratios, uranium-thorium isotope ratios, and radiometric ages in granitoid samples

Outcomes reported

The study measured oxygen and uranium-thorium isotopic compositions in granitoid wall rocks from Mount Mazama to constrain the timescales and mechanisms of hydrothermal fluid exchange and partial melting. Isotopic signatures were used to infer the duration and intensity of magmatic-hydrothermal interaction during the volcano's evolution.

Theme
General food systems / other
Subject
Other / interdisciplinary
Study type
Research
Study design
Laboratory / in vitro geochemical analysis
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Other
DOI
10.1016/j.gca.2017.04.043
Catalogue ID
BFmokjoedi-ln99rw

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.