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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 paleoclimatic study employed strontium isotope geochemistry in lacustrine sediments to trace hydrological responses to Milankovitch orbital forcing during the Eocene epoch. By analysing 87Sr/86Sr ratios, the authors reconstructed changes in the hydrologic cycle driven by periodic orbital variations. The work contributes to understanding how orbital-scale climate forcing modulates continental weathering and water cycling in deep time, as suggested by the isotopic proxy data.

UK applicability

This fundamental paleoclimate research has limited direct applicability to contemporary UK agricultural or land management practice. However, understanding long-term orbital controls on regional hydrology may inform palaeo-analogues for future climate scenarios relevant to UK water resources and soil formation processes.

Key measures

Lacustrine 87Sr/86Sr ratios; Milankovitch orbital parameters; hydrologic cycle reconstructions

Outcomes reported

The study used lacustrine strontium isotope ratios (87Sr/86Sr) as a proxy to reconstruct changes in the hydrologic cycle during the Eocene epoch. The research examined how Milankovitch orbital cycles influenced precipitation and weathering patterns as recorded in lacustrine sediment geochemistry.

Theme
Climate & resilience
Subject
Other / interdisciplinary
Study type
Research
Study design
Research
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Other
DOI
10.1016/j.epsl.2016.05.007
Catalogue ID
BFmommplpq-l8k583

Topic tags

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