What Causes The Formation Of An Alluvial Fan Quizlet?

What Causes The Formation Of An Alluvial Fan Quizlet? How do alluvial fans form? Steep channels and other sediment sources feed out onto flat planes. The energy of the system drop dramatically, leading to the deposition of more coarse-grained sediments. … They are formed where neighbouring alluvial fans feed into a closed-system valley. What are