Plugs and plug circles: A basic form of patterned ground, Cornwallis Island, Arctic Canada - origin and implications

Link Washburn, a glimpse at the person

“…I will always remember that it was Linc's model to have special luncheons regularly on campus … and invite all the faculty who were loosely connected with the QRC activities…. 25 or so colleagues he had Washburn (1989Washburn ( , 1997. They helped pave the way to modern quantitative modeling of patterned ground formation (e.g., Kessler et al 2001).…”

“…Link examining soil plugs and other periglacial features near Resolute, Cornwallis Island, NW Territories, Canada in the early 1980s. Results were published by Washburn (1989Washburn ( , 1997. They helped pave the way to modern quantitative modeling of patterned ground formation (e.g., Kessler et al 2001).…”

Age and origin of upland block fields on melville peninsula, eastern canadian arctic

“…Block fields, boulder fields, felsenmeer and mountain-top detritus are all names that have been given to bouldery, rubbly terrain in alpine or arctic areas. Terminology has been summarized by Washburn (1973Washburn ( , 1980 and White (1976). In most cases these terms have been used to designate terrain composed of in situ angular boulders and stones derived from mechanical and chemical weathering of bedrock, although they have also been applied to other bouldery materials, such as till and slope deposits, in a few instances.…”

“…1), although some discussion relates to others on southeastern Melville Peninsula. The term 'block field' used here, in accordance with Washburn (1973), refers to an upland area composed largely of angular to subangular, large rock fragments. The extensive areas of frost-shattered limestone on glaciated and recently emerged lowland terrain (Dredge 1992) are excluded from the discussion, because their geologic setting, weathering characteristics, age and landforms differ from those of the upland block fields described here.…”

Cryostratigraphical studies of ground ice formation and distribution in a High Arctic polar desert landscape, Resolute Bay, Nunavut1

“…This seemed to correspond to the bottom of the active layer before the deposition of sandy loam, the former would then have been between 27 and 34 cm deep. Burial of the organic matter would have occurred through cryoturbation processes, which are widespread both near water bodies and in drier sites in the area (Mackay 1953;Washburn 1989Washburn , 1997. While dating of the organics was not performed for this work, further investigation into the timing and processes of permafrost formation in patchy wetlands should consider these markers.…”