Alluvial fans
3 important questions on Alluvial fans
Name the 3 zones that can be distinquished in an alluvial fan and are relevant for both water and sediment flow.
Recharge zone, transmission zone, discharge zone
Name the 4 geomorphological characteristics of an alluvial fan and explain where they are located in the area.
Apex: place where the alluvial fan starts/ontspringt.
Fan: area where the flow fans out. The elevation decreases and the fan coincides with both the recharge and transmission zone (and very start of the discharge zone).
Distal end: End of the fan and roughly coincides with the start of the discharge zone. Can be interpreted more as a line.
Playa: the rest of the discharge zone, flatter area. As it is wetter here, more vegetation can grow here.
Fan: area where the flow fans out. The elevation decreases and the fan coincides with both the recharge and transmission zone (and very start of the discharge zone).
Distal end: End of the fan and roughly coincides with the start of the discharge zone. Can be interpreted more as a line.
Playa: the rest of the discharge zone, flatter area. As it is wetter here, more vegetation can grow here.
Explain the geological built-up of an alluvial fan and the implications for potential water well locations.
See lec notes
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