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Figure 2.

(A) Simplified geologic map of the Wyoming Province showing Precambrian outcrop in blue. Thick black lines indicate interpreted extent of the Wyoming Province. Double black lines mark the boundaries between subprovinces. BBMZ—Beartooth-Bighorn magmatic zone; MMT—Montana metasedimentary terrane; SAT—Southern Accreted Terranes. Modified from Bedrosian and Frost (2022). (B) Schematic cross section south-north along the Deep Probe seismic refraction/wide-angle reflection experiment (Snelson et al., 1998; Gorman et al., 2002). Crustal structure interpreted from seismic data shows greater lithospheric thickness beneath the Wyoming and Medicine Hat cratons compared to Colorado province and Paleoproterozoic Great Falls orogen that lies between the two cratons. Province boundaries and approximate thickness of the lithosphere are interpreted from electrical and seismic data by Bedrosian and Frost (2022).

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