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Morphodynamic limits to environmental signal propagation across landscapes and into strata

Author

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  • Stephan C. Toby

    (University of Liverpool)

  • Robert A. Duller

    (University of Liverpool)

  • Silvio Angelis

    (University of Liverpool)

  • Kyle M. Straub

    (Tulane University)

Abstract

The sedimentary record contains unique information about landscape response to environmental forcing at timescales that far exceed landscape observations over human timescales. However, stochastic processes can overprint and shred evidence of environmental signals, such as sediment flux signals, and so inhibit their transfer to strata. Our community currently lacks a quantitative framework to differentiate between environmental signals and autogenic signals in field-scale analysis of strata. Here we develop a framework and workflow to estimate autogenic thresholds for ancient sediment routing systems. Crucially these thresholds can be approximated using measurements that are readily attainable from field systems, circumventing the low temporal resolution offered by strata. This work demonstrates how short-term system dynamics can be accessed from ancient sediment routing systems to place morphodynamic limits on environmental signal propagation across ancient landscapes and into strata.

Suggested Citation

  • Stephan C. Toby & Robert A. Duller & Silvio Angelis & Kyle M. Straub, 2022. "Morphodynamic limits to environmental signal propagation across landscapes and into strata," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-021-27776-6
    DOI: 10.1038/s41467-021-27776-6
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    References listed on IDEAS

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    1. Jasper Knight & Stephan Harrison, 2013. "The impacts of climate change on terrestrial Earth surface systems," Nature Climate Change, Nature, vol. 3(1), pages 24-29, January.
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