Tectonic setting of the study area. (A) Regional fault map showing faults of the San Andreas, Walker Lane, and Basin and Range. Locations of the Carson and Excelsior domains are outlined by blue circles. (B) Enlarged view of the Walker Lane displaying physiographic and fault trends. The northeast-trending Olinghouse (red), Carson (yellow), and Wabuska (blue) lineaments are the focus of this study. Normal faults (teeth on downthrown side) are green, right-lateral strike slip faults are magenta, and left-lateral strike-slip faults of Excelsior domain are orange. Thin dashed line is highstand contour (1332 m) of pluvial Lake Lahontan. Red arrows are global positioning system velocity vectors plotted with respect to stable North America adapted from Hammond and Thatcher (2007).
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