frost wedging

frost wedging

[′frȯst ‚wej·iŋ]
(geology)
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References in periodicals archive ?
Lawrence, Northumberland Strait and the Bay of Fundy coastlines, friable rocks, glaciotectonic activity, frost wedging, and coastal erosion have resulted in many small failures and incremental retreat of coastal cliffs.
Most failures are spatially restricted and initiated by frost wedging.
The combination of bedrock structure, glaciotectonic activity, frost wedging, and coastal erosion has resulted in the development of numerous small-scale landslide features in Prince Edward Island and New Brunswick, along with incremental retreat of coastal cliffs.
Croix Lowlands, Precambrian rocks are subject to frost wedging, and weathered surfaces undergo limited frost creep, although no significant failures are evident.
Just 1/4 mile in, you'll see large angular fragments covering a slope--victims of frost wedging, which occurs when water freezes and thaws in the cracks.