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Earth, Planets and Space
Fig. 9 | Earth, Planets and Space

Fig. 9

From: Crustal structure of the eastern Piedmont and Atlantic coastal plain in North Carolina and Virginia, eastern North American margin

Fig. 9

a The P-wave traveltime fit and seismic ray diagram. b The S-wave traveltime fit and seismic ray diagram. The rays emanate from each of the five shot points and are color coded by the crustal boundary from which they either refract or reflect. The density of ray coverage gives a qualitative indication of which portions of the model are well constrained. The short color segment is the observed times of the rays which have the same color in the seismic ray diagram. The length of segments indicates the estimated picking error. The black nodes are the calculated times

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