Artifacts of teleseismic body-wave inversion PowerPoint PPT Presentation

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Title: Artifacts of teleseismic body-wave inversion


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Artifacts of teleseismic body-wave inversion
Don L. Anderson
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A cylinder (a) and a pillbox (b) both give a tent
or cone plus rabbit ears when teleseismic
body waves are inverted
Slowness perturbations
Keller et al.
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Examples of Rabbit Ear artifacts resulting from
use of teleseismic body waves
Foulger et al.
Use of surface waves and regional events can
suppress the artifacts
West et al.
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Rabbit Ear artifacts result from use of
teleseismic body waves
Foulger et al.
West et al.
Wolfe et al. SCIENCE 2009
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Rabbit ears artifact
Hawaii
Yellowstone
Rabbit ear artifacts?
Wolfe et al. 2009
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The shallow anomaly is saturated but is about 3
the deep one about 0.5
Result 1 with faint rabbit ears
Test object 2 with Gaussian taper over 100-km
Question what would be the result if the test
object were 3 ,with sharp edges?
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