<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Absolute dating of mass movements is crucial for disentangling possible release factors and determining the frequency of events. Here, we present an overview of a recent approach to dendrochronological dating of rockfalls, flows, landslides and avalanches. The results, based on 69 casestudies, show that methodological approaches to sampling and material processing differ considerably for different types of mass movements. Landslides are usually detected through abrupt growth changes and changes in stem eccentricity, whereas high-energy events as avalanches and flows are mostly identified by the formation of traumatic resin ducts, reaction wood, growth injuries and eccentricity changes. Cross-dating of dead wood is applicable as well. The dating of most mass movements except landslides is common, even with sub-annual resolution. In comparison to other methods of absolute dating, the main benefit of dendrochronology still lies in the high temporal resolution of the results. If living material is accessible, on-going research progress makes absolute dating of most mass-wasting events possible with sub-annual precision.</p></abstract>

Absolute dating of mass movements is crucial for disentangling possible release factors and determining the frequency of events. Here, we present an overview of a recent approach to dendrochronological dating of rockfalls, flows, landslides and avalanches. The results, based on 69 casestudies, show that methodological approaches to sampling and material processing differ considerably for different types of mass movements. Landslides are usually detected through abrupt growth changes and changes in stem eccentricity, whereas high-energy events as avalanches and flows are mostly identified by the formation of traumatic resin ducts, reaction wood, growth injuries and eccentricity changes. Cross-dating of dead wood is applicable as well. The dating of most mass movements except landslides is common, even with sub-annual resolution. In comparison to other methods of absolute dating, the main benefit of dendrochronology still lies in the high temporal resolution of the results. If living material is accessible, on-going research progress makes absolute dating of most mass-wasting events possible with sub-annual precision.

Meta-analysis of dendrochronological dating of mass movements

Faculty of Science, Department of Physical Geography and Geoecology, Charles University in Prague, Albertov 6, Prague, 12843, Czech Republic

Geochronometria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Meta-analysis of dendrochronological dating of mass movements"}

Absolute dating of mass movements is crucial for disentangling possible release factors and determining the frequency of events. Here, we present an overview...

Meta-analysis of dendrochronological dating of mass movements

Pubblicato online: 27 dic 2012

Pagine: 59 - 76

DOI: https://doi.org/10.2478/s13386-012-0021-5

Parole chiave
dendrogeomorphology, disturbances, meta-analysis, mass-movement, absolute dating

© 2012 Silesian University of Technology, Gliwice, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Meta-analysis of dendrochronological dating of mass movements

Pubblicato online: 27 dic 2012

Pagine: 59 - 76

DOI: https://doi.org/10.2478/s13386-012-0021-5

Parole chiavedendrogeomorphology, disturbances, meta-analysis, mass-movement, absolute dating

© 2012 Silesian University of Technology, Gliwice, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
dendrogeomorphology, disturbances, meta-analysis, mass-movement, absolute dating