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Glacially Induced Faulting in Alaska Southern Alaska provides an ideal setting to assess how surface mass changes can influence crustal deformation and seismicity amidst rapid tectonic deformation. Since the end of the Little Ice Age, the glaciers of southern Alaska have undergone extensive wastage, retreating by kilometers and thinning by hundreds of meters. Superimposed on this are seasonal mass fluctuations due to snow accumulation and rainfall of up to meters of equivalent water height in fall and winter, followed by melting of gigatons of snow and ice in spring and summer and changes in permafrost. These processes produce stress changes in the solid Earth that modulate seismicity and promote failure on upper-crustal faults. Here we quantify and review these effects and how they combine with tectonic loading to influence faulting in the southeast, St. Elias and southwest regions of mainland Alaska
Document ID
20205006654
Document Type
Book Chapter
Authors
Jeanne Sauber (Goddard Space Flight Center Greenbelt, Maryland, United States)
Date Acquired
August 21, 2020
Publication Date
September 7, 2020
Publication Information
Publication: Glacially Triggered Faulting
Subject Category
Geosciences (General)
Funding Number(s)
CONTRACT_GRANT: ESI2015-0051 GRACE15-0006
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.
Technical Review
Professional Review

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NameType Jeanne Sauber Chapter7.2.pdf STI