ABSTRACT: Late Holocene solifluction rates and radiocarbon soil ages, Central Canadian Arctic

CGRG Bibliography of Canadian Geomorphology
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Abstract

Twelve radiocarbon dates on humus buried beneath four solifluction lobes indicate long-term average solifluction rates of 2.2, 3.3, >3.5, and 1.3 mm/year. The lobes are composed of till, sand, bouldery gravel, and cobble gravel on slopes of 2 degrees to 25 degrees. Availability of moisture seems to be more important than slope angle or texture in determining solifluction rates. The rates of advance of two lobes have varied through time, though not synchronously. Radiocarbon ages of soils at time of burial range from 285 to 953 years and are important components of the radiocarbon ages of the paleosols. Twelve other radiocarbon-dated lobes from other parts of the world experienced similar rates of movement.

Bibliography of Canadian Geomorphology