The lowest elevation that running water can flowbase levelstrikefootwallzone of ablation
Question
The lowest elevation that running water can flow
- base level
- strike
- footwall
- zone of ablation
Solution
Understanding the Terminology
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Base Level: This is the lowest point to which a river can erode its channel. It represents the elevation below which running water cannot flow, determined largely by sea level and other geological features.
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Strike: In geological terms, 'strike' refers to the direction of the line formed by the intersection of a horizontal plane and an inclined geological surface.
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Footwall: This term is used in geology to describe the block of rock that lies beneath an inclined fault or ore body.
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Zone of Ablation: This refers to the area on a glacier or ice sheet where ice loss occurs primarily through melting, sublimation, or calving, as opposed to the accumulation zone where snow accumulates.
Final Insight
The term "base level" is most relevant when discussing the lowest elevation to which running water can flow. This is because it essentially sets the limit on erosion and sediment transport for rivers and streams. Hence, in this context, the answer to your question about the lowest elevation that running water can flow is the base level.
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