How Deep Can Caves Get?
Krubera Cave, one of our planet’s deepest known caves, extends 2200 meters into the earth – that’s a depth of nearly six Empire State Buildings. Or at least, that's as far down as humans have been able to explore; there might be other undiscovered chambers that go down even farther. But the cave can't be that much deeper, because there's a limit – actually, three limits – to how deep caves on Earth can get.
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Show Notes
To learn more about this topic, start your googling with these keywords:
- Karst: landscape underlain by limestone which has been eroded by dissolution, producing ridges, towers, fissures, sinkholes and other characteristic landforms.
- Solutional cave: a cave usually formed in a soluble rock like limestone
- Water table: the upper surface of the saturated zone underground, where all the pores and cracks in soil and rock are completely filled with water.
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