Fig. 1: Tectonic, station and event maps of the study region.
From: Dual-layered mantle lithosphere beneath southeastern Canadian Cordillera
a Map view of regional tectonic provinces and surface topography109. Hatched areas indicate different tectonic provinces and ages. Colored symbols denote 107 broadband seismic stations from 4 networks used in this study. Major tectonic boundaries are delineated by colored lines. The red circle highlights station SLEB, which was analyzed by Miller and Eaton33 and revealed mantle conversions at ~100 km and 180 km depths. Abbreviations: ME2010 Miller and Eaton33; BHT Buffalo Head Terrane, BHH Buffalo Head Hills, BM Birch Mountain, CDF Cordilleran Deformation Front, GSLSZ Great Slave Lake Shear Zone, RMT Rocky Mountain Trench, GFTZ Great Falls Shear Zone, STZ Snowbird Tectonic Zone, Ta Taltson magmatic zone, THO Trans-Hudson Orogen, VS Vulcan Structure, ML Mountain Lake. b Event (red circles, mainly occurred from 2014 to 2019) used in SRF computation110. The blue polygon marks the boundaries of the study area.
