FIGURE 8 - available via license: Creative Commons Attribution 4.0 International
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| Example photo of coastal bluffs where niche erosion/block collapse was the predominant mechanism (image courtesy of Ann Gibbs, U.S. Geological Survey).
Source publication
Two prominent arctic coastal erosion mechanisms affect the coastal bluffs along the North Slope of Alaska. These include the niche erosion/block collapse mechanism and the bluff face thaw/slump mechanism. The niche erosion/block collapse erosion mechanism is dominant where there are few coarse sediments in the coastal bluffs, the elevation of the b...
Context in source publication
Context 1
... each photo, sand and gravel content data from one proximal core or bluff sample was used to determine the sediment areal density (Figure 7). Locations experiencing niche erosion/block collapse were readily determined based on the characteristic erosional blocks (Figure 8). Locations dominated by bluff face thaw/slump were evident based on the presence of a high elevation beach before the coastal bluff and the presence of material (e.g., vegetation) that was slumping on the bluff face ( Figure 9). ...
