Surficial Geology and Neotectonics of Selected Areas of Western Idaho and Northeastern Oregon
نویسنده
چکیده
1. Location map of selected fault-controlled valleys in western Idaho and northeastern Oregon 3 2. Plot of all scarp height and slope angle values obtained in this study 5 3. Map of sackung features, vegetation lineaments, and landslide headscarps on West Mountain 6 4. Map of Meadows Valley, showing approximate trace of Meadows Valley fault zone 8 5. Surficial geologic map of the north end of Meadows Valley 10 6. Map of generalized trace of the Rush Peak and Goodrich Creek faults in western Idaho 12 7. Surficial geologic map of the Rush Peak fault at Rush Creek 14 8. Plots of scarp height and scarp-slope angle values for southwest-facing fault scarps in this study 16 9. Map showing generalized traces of the West and East Grande Ronde Valley fault zones 17 10. Surficial geologic map of West Grand Ronde Valley fault zone, La Grande, Oregon 18 11. Plots of scarp height and scarp-slope angle values from eastern splay of La Grande segment 22 12. Surficial geologic map of East Grand Ronde Valley fault zone in the vicinity of Gasset Bluff 23 TABLES 1. Time terms for the Quaternary Period used in this report 2 2. Scarp-profile data from faults in western Idaho and northeastern Oregon 2 3. Historic climate data for selected reference and fault scarp profile sites 5
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