The Las Vegas valley is ringed by mountains. When it rains in the mountains flash floods carry tons of clastic sediment down narrow slot canyons, and then deposit the sediment on alluvial fans at the mouth of the canyon. What kind of sedimentary rock would you expect to form on the alluvial fans

conglomerate

Explanation:

The Las Vegas valley is ringed by mountains. When it rains in the mountains flash floods carry tons of clastic sediment down narrow slot canyons, and then deposit the sediment on alluvial fans at the mouth of the canyon. The kind of sedimentary rock you would expect to form on the alluvial fans is called conglomerate which is formed by river movement or ocean wave action. The cementing agents that fill the spaces to form the conglomerate are silica , calcite, or iron oxides.

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