Example of seismically imaged ancient continental lithospheric sutures

Example of seismically imaged ancient continental lithospheric sutures

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Credit:
M. Bostock/IRIS Consortium

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Seismic velocity discontinuities beneath the Sierra Nevada

Description

Example of seismically imaged ancient continental lithospheric sutures that have persisted into the present. The left-most portion of the figure shows lithospheric fabric from the controlled vibroseis source SNORCLE experiment. The right part of the figure, based on passive-source imaging of signals from distant earthquakes, shows these sutures extending under the ~ 2.7 Ga Slave craton in western Canada to depths exceeding 200 km. (Image courtesy of M. Bostock.)

Date Taken: February 18, 2009
Photographer / Contributor: M. Bostock

This photo has been tagged with

Seismological_Grand_Challenges, Long_Range_Science_Plan,

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