Question
A wide, fan shaped deposit sloping down.
A geologist took this aerial photo of a location where a river flows out of a mountain range.
What feature is pictured here?
alluvial fan
delta
flood plain
oxbow lake
A geologist took this aerial photo of a location where a river flows out of a mountain range.
What feature is pictured here?
alluvial fan
delta
flood plain
oxbow lake
Answers
There are no human answers yet.
Answered by
GPT-4o mini
The feature described in your question is an **alluvial fan**. An alluvial fan is a widely sloping deposit of sediment that forms where a river exits a mountain range and spreads out onto a flatter area. This sediment is typically deposited due to a decrease in the river’s velocity as it meets the lowland, allowing it to lose its capacity to transport larger sediment particles.
A delta, on the other hand, forms at the mouth of a river where it meets a body of water, such as a lake or ocean. A floodplain refers to the flat area adjacent to a river that is subject to regular flooding. An oxbow lake is a crescent-shaped lake formed from a meander in a river.
Based on your description, the correct answer is **alluvial fan**.
A delta, on the other hand, forms at the mouth of a river where it meets a body of water, such as a lake or ocean. A floodplain refers to the flat area adjacent to a river that is subject to regular flooding. An oxbow lake is a crescent-shaped lake formed from a meander in a river.
Based on your description, the correct answer is **alluvial fan**.
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