Questions tagged [islands]

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Bouvet Island volcano [closed]

In this remote island (the most remote!) there is a volcano that wikipedia report as inactive, but from google maps there seems to be some ash in the sky. Are there some ongoing eruption?
6
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1answer
75 views

How do long, thin, island chains such as North Carolina's outer banks, form?

I can't think of a possible explanation, there's no volcanic activity in the area, and it gets destroyed every time a hurricane passes through. How did it get there?
1
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1answer
50 views

How are tall cays formed?

From reading about Cays on Wikipedia it seems they are formed from coral reefs covered with sand or gravel. There are however some cays scattered around the world which are hundreds of feet off of ...
3
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2answers
94 views

Is Mississippi and parts of Alabama, Tennessee, and Kentucky one giant island? [closed]

Apologies if this is a poorly written question, I'm writing this on my phone. I noticed that there were a lot of rather long rivers in the region in question, and I began to wonder just how connected ...
1
vote
1answer
145 views

How does fertile soil reach newborn volcanic islands?

When a volcanic island first surfaces, I assume no vegetation can grow, as it probably only consists of volcanic rock. How would a volcanic island like Iceland that is far from any continent grow to ...
0
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0answers
89 views

What initiates the plumes which create oceanic hot spots? [duplicate]

What causes the large and very long lasting magma plumes which rise up from the mantle and create a hot spot such as the ones which built the island chains of Hawaii and Galapagos? The volcanic ...