![]() ![]() ![]() Overall BSR–derived heat flow values decrease from approximately 95 mW m –2 10 km east of the deformation front to approximately 60 mW m –2 located 60 km landward of the deformation front. From these MCS profiles we generated a 3–D view of the Cascadia margin thermal structure by interpreting 40,232 individual BSR picks in terms of temperature and heat flow. The 11 MCS lines consisted of nine lines perpendicular and two lines parallel to the Cascadia margin covering a 100 km along–strike region of the accretionary wedge. Eleven recently collected multichannel seismic (MCS) profiles from the Cascadia Open–Access Seismic Transects experiment offshore Washington State are used to characterize the distribution of bottom–simulating reflectors (BSRs) from seaward of the deformation front onto the continental shelf of the Cascadia Subduction Zone.
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