Questions tagged [cavern]
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Possible cavern?
In eastern Ontario, Canada, there's a place where, when walking and stomping, you can hear a hollowness in the ground.
The area is primarily igneous rock with many large boulders, and the spot in ...
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2answers
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Sea cave vs Sea arch
How do you distinguish sea cave from sea arch?
If I want to classify a crack of sea cliff as sea cave, has it to have a dead end? Would you call a geological formation as a sea cave even a kayak can ...
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1answer
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What kind of lava tube feature is Cleopatra's Grave?
Cleopatra's Grave is a natural feature inside (warning: PDF) Catacombs Cave in Lava Beds National Monument near Modoc, California.
Source: LookBeforeYouLive
My apologies, as this image is somehow in ...
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2answers
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Why are there no deep caves in the continental US?
According to http://www.caverbob.com/wdeep.htm and http://www.caverbob.com/usadeep.htm, the only cave over 1000m deep in the US is a lava cave in Hawaii. In the continental US the deepest is 505m.
On ...
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1answer
433 views
How are Benagil caves formed?
The Benagil caves are really impressive. How are they formed though? What makes that perfect domed shape and how is that hole in the ceiling created?
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What is the deepest we have ever gone into the Earth?
I remember Journey to the Center of Earth and wonder: What is the deepest in the Earth surface or below sea level we have traveled either by foot, sub, drill or camera?
