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Mountain Hardware
Mojave River Valley Museum
Thrust
FN6. Location/Access:(37o 21.276’N; 117o 47.317’W). This site is 0.4 miles north of the previous site and is an obvious thrust fault on the west cliff along the road.
Best Time: Morning.
Geology: Is this a western limit of the Roberts Mountain thrust? It certainly is impressive to look at. According to Joseph and Taylor (1987), the rocks above the thrust are Cambrian Bonanza King and the rocks below are the older Cambrian Polito formation. This makes little structural sense to us. However, remember that the Amargosa and Tucki Mountain detachment systems were once thought of as thrusts. Considering the current tectonics of the area and the structural relations, this fault may be mis-mapped.
