After Ward Hunt Island, Melville Island

July 29, 2015 in post

As they return from Ward Hunt Island, the Geocryolab team of Daniel Fortier, Gautier Davesne and Michel Paquette will split up. While the rest of the team will head back south with the precious samples collected on Ward Hunt, Michel will keep going for a few more weeks, heading west to Melville Island (Figure 1) on a new collaborative project between the Geocryolab and Scott Lamoureux’s Cape Bounty Arctic Watershed Observatory (CBAWO – Queen’s University). Along with Ashely Rudy (PhD candidate), Michel will use the lab’s Ground Penetrating Radar and core sampling drill to identify zones of high ice content, which are causing large disturbances on the slopes. At thaw, the melting of ice-rich layers causes soil liquefaction and slope failures, occuring as active-layer detachments slides. These landslides modify the hydrographic network and sedimentary transport in rivers, and could change the water quality in rivers and in the lakes in the area.

 

 

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Figure 1: Study site at Melville Island in the Arctic archipelago