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Fig. 1 | Earth, Planets and Space

Fig. 1

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

Fig. 1

Topographic map of the area showing the location of the eastern North American margin (ENAM) onshore seismic wide-angle reflection/refraction profiles (Lines 1 and 2). The interpretation of Line 1 is presented here. Red stars represent explosion sources. Black line represents locations of portable seismographs (708 stations in Line 1). The black dashed line represents the boundary of the tectonic belts. Several earlier studies around our study area are shown in Figure: A–A′, a seismic reflection profile of Pratt et al. (1988, 2015); B–B′, crustal model of Dreiling and Mooney (2015); C–C′, S-wave velocity model of Shen and Ritzwoller (2016); D–D′, P-wave velocity model of Hales et al. (1968) and Lewis and Meyer (1977); E–E′, P-wave velocity model of Holbrook et al. (1994); F–F′: S-wave velocity model of Lynner and Porritt (2017). Red box in the inset map outlines the study area

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