Seismic Evidence of Shallow Permafrost Beneath Islands in the Beaufort Sea, Alaska

• Published in: ARCTIC
• Main Authors: Morack, J.L., Rogers, J.C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Arctic Institute of North America 1981
• Subjects: Barrier islands; Permafrost; Permafrost beneath oceans; Seismic surveys; Spatial distribution; Alaska; Northern; Alaskan Beaufort Sea; Barrier Islands; Arctic; Beaufort Sea; Ice; permafrost; Tundra
• Online Access: https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65570

Shallow ice-bonded permafrost has been shown by seismic refraction methods to exist beneath several islands in the Beaufort Sea. The marked contrast of seismic velocities in bonded materials (>2500 m/sec) and unbonded materials (<2100 m/sec) was used to determine the location of permafrost. In...