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Tier 3 — Observational / field trialPeer-reviewed

Lacustrine 87 Sr/ 86 Sr as a tracer to reconstruct Milankovitch forcing of the Eocene hydrologic cycle

M’bark Baddouh, Stephen R. Meyers, Alan R. Carroll, Brian L. Beard, Clark M. Johnson

Earth and Planetary Science Letters · 2016

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Summary

This paper presents a palaeoclimate reconstruction using strontium isotope ratios from Eocene lake sediments to trace orbital forcing of the hydrologic cycle. As suggested by the title and journal scope, the authors employed 87Sr/86Sr as a proxy for weathering intensity and precipitation patterns, linking these to astronomical forcing cycles. The work contributes to understanding how orbital variations modulated continental hydrology during a greenhouse climate interval.

UK applicability

This is a palaeoclimate study with limited direct applicability to UK agricultural or soil systems. However, improved understanding of orbital-scale climate forcing and hydrologic sensitivity may inform long-term climate modelling relevant to UK water resource management and climate adaptation policy.

Key measures

Lacustrine 87Sr/86Sr ratios; Milankovitch orbital parameters; hydrologic cycle intensity; sediment chronology

Outcomes reported

The study used strontium isotope ratios (87Sr/86Sr) measured in lacustrine sediment records to reconstruct hydrologic variability during the Eocene epoch. The research examined whether orbital (Milankovitch) cycles influenced precipitation and weathering patterns as recorded in isotopic signatures.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Observational/Palaeoclimate reconstruction
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Other
DOI
10.1016/j.epsl.2016.05.007
Catalogue ID
BFmor3gfpg-xuihti

Topic tags

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