Collecting a lake sediment core at Pockwock Lake, Nova Scotia.

Geoscience

Collecting a lake sediment core at Pockwock Lake, Nova Scotia.

Geoscience

Dewey’s geoscience research focuses on the mechanisms that control the timing, distribution, and magnitude of toxic metal concentrations in lakes.

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Recent Posts

Paleolimnologists have been using the Constant Rate of Supply (CRS) and Constant Initial Concentration (CIC) model to interpret 210Pb …

I’m an avid Twitter follower of Simon Kuestenmacher (@simongerman600), who is a prolific tweeter of maps (all sorts). The other day I …

Inspired by Lindsay Anderson’s suggestion that “somebody code up that Edwards 1997 model”, I successfully avoided proofreading my Ph.D. …

A side project of mine recently has been to play with PHREEQC, which is a powerful geochemical modelling platform put out by the USGS. …

This post covers creating stratigraphic diagrams using ggplot2, highlighting the helpers contained within the tidypaleo package, which …

Publications

Separating the timing and effects of multiple watershed disturbances is critical to a comprehensive understanding of lakes, which is …

Multiparameter data with both spatial and temporal components are critical to advancing the state of environmental science. These data …

We analyzed photos of convex upward deformation in split sediment cores to obtain reasonable parameters with which to model the effect …

Small, temperate lakes are important to communities across Canada, but commonly lack the long-term water quality records that are …
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Dewey Dunnington
Geoscientist, Programmer, Educator