Baldini, James U.L. and Lechleitner, Franziska A. and Breitenbach, Sebastian F.M. and van Hunen, Jeroen and Baldini, Lisa M. and Wynn, Peter M. and Jamieson, Robert A. and Ridley, Harriet E. and Baker, Alexander J. and Walczak, Izabela W. and Fohlmeister, Jens (2021) 'Detecting and quantifying palaeoseasonality in stalagmites using geochemical and modelling approaches.', Quaternary science reviews., 254 .
Stalagmites are an extraordinarily powerful resource for the reconstruction of climatological palaeoseasonality. Here, we provide a review of different types of seasonality preserved by stalagmites and methods for extracting this information. A new drip classification scheme is introduced, which facilitates the identification of stalagmites fed by seasonally responsive drips and which highlights the wide variability in drip types feeding stalagmites. This hydrological variability, combined with seasonality in Earth atmospheric processes, meteoric precipitation, biological processes within the soil, and cave atmosphere composition means that every stalagmite retains a different and distinct (but correct) record of environmental conditions. Replication of a record is extremely useful but should not be expected unless comparing stalagmites affected by the same processes in the same proportion. A short overview of common microanalytical techniques is presented, and suggested best practice discussed. In addition to geochemical methods, a new modelling technique for extracting meteoric precipitation and temperature palaeoseasonality from stalagmite δ18O data is discussed and tested with both synthetic and real-world datasets. Finally, world maps of temperature, meteoric precipitation amount, and meteoric precipitation oxygen isotope ratio seasonality are presented and discussed, with an aim of helping to identify regions most sensitive to shifts in seasonality.
|Full text:||(AM) Accepted Manuscript|
Available under License - Creative Commons Attribution Non-commercial No Derivatives 4.0.
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|Publisher Web site:||https://doi.org/10.1016/j.quascirev.2020.106784|
|Publisher statement:||© 2021 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/|
|Date accepted:||21 December 2020|
|Date deposited:||26 May 2021|
|Date of first online publication:||07 January 2021|
|Date first made open access:||07 January 2023|
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