Abstract
The rift zones of Iceland are subsiding at relatively constant rate. The absolute subsidence has not been determined but the rate of tilt of the flanks of the rift zones is 0.2 to 0.7 microradians per year and the width of the zone that is being tilted appears to be more than 40 kilometers. It is estimated that the central part of the rift zone is subsiding 0.5 to 1.0 centimeter per year relative to surrounding areas. The ground deformation associated with this subsidence is characterized by gentle bending of the earth’s crust with no measureable fault displacement except during earthquakes and possibly during a period of one or two years after earthquakes.
This work has been supported by grants GP-5365, GA-987, GA-4112 and GA-24152 from the National Science Foundation, Washington.
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© 1974 D. Reidel Publishing Company, Dordrecht
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Tryggvason, E. (1974). Vertical Crustal Movement in Iceland. In: Kristjansson, L. (eds) Geodynamics of Iceland and the North Atlantic Area. NATO Advanced Study Institutes Series, vol 11. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2271-2_17
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DOI: https://doi.org/10.1007/978-94-010-2271-2_17
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