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beacuse the seamounts were once formed as volcanoes

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Q: Why do geologists think that seamounts are extinct volcanoes?
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How many volcanoes are dangerous on earth?

I think any volcano is potentially dangerous. It was once thought that volcanoes were extinct but now scientist think volcanoes are active or dormant. So any volcanoe could erupt and be dangerous. Some are more likely to than others.


Would it be possible for a volcano to form off the Atlantic coast of the US?

A rather silly answer would be to point out that the mid-Atlantic ridge is technically off the Atlantic coast -- just 2500 kilometers away! More seriously: it is always possible that a new hot spot will form, like that which formed the New England Seamounts chain of extinct underwater volcanic peaks extending to the east of Cape Cod all the way to the (still volcanically active) Azores. (For some reason Pinduck85 seems to have forgotten about hotspot volcanoes. Also volcanoes from rifting - hmm, come to think of it The St. Lawrence River and estuary is a failed rift zone with a line of ancient extinct volcanoes running eastward of Montreal).


Does earth venus and mars have volcanoes?

Venus definitely have more volcanoes than Mars. Yes, Venus and Mars have pretty much all extinct and dormant volcanoes, but they're still volcanoes. Think of it like this: when someone dies or is in a coma, that doesn't mean they're not human. Yes I know that was dark deal with it :P


What countries does not have volcanoes?

I really think Canada, Singapore and Malaysia are the countries have not volcanoes. Is That Right?


What are some similarities between mountains and volcanoes?

hmm... probably... 1. They are both tall 2. They both form at convergent plate boundaries 3. They both lie on plate boundaries ( could be active ones ) yep, thats all i can think of. Hope this help :)

Related questions

How many volcanoes are dangerous on earth?

I think any volcano is potentially dangerous. It was once thought that volcanoes were extinct but now scientist think volcanoes are active or dormant. So any volcanoe could erupt and be dangerous. Some are more likely to than others.


How do geologists think earths atmosphere formed?

how do geologists think earths atmosphere is formed


Would it be possible for a volcano to form off the Atlantic coast of the US?

A rather silly answer would be to point out that the mid-Atlantic ridge is technically off the Atlantic coast -- just 2500 kilometers away! More seriously: it is always possible that a new hot spot will form, like that which formed the New England Seamounts chain of extinct underwater volcanic peaks extending to the east of Cape Cod all the way to the (still volcanically active) Azores. (For some reason Pinduck85 seems to have forgotten about hotspot volcanoes. Also volcanoes from rifting - hmm, come to think of it The St. Lawrence River and estuary is a failed rift zone with a line of ancient extinct volcanoes running eastward of Montreal).


All volcanoes whether active or inactive are dangerous do you think this is true?

With some exceptions, volcanoes are generally not dangerous to people. Your chance of being killed by a volcano is 1 in 80000 over your lifetime, which is far less than your chance of being killed in say a motor vehicle accident (1 in 67). There are also two classifications for inactive volcano's. Volcanoes which have not erupted for a significant amount of time are known as dormant volcanoes. Volcanoes which have not erupted in human history are known as extinct volcanoes. Extinct volcanoes are never expected to erupt again, and are therefore not dangerous unless they have been misclassified. So no, I do not think that all volcanoes whether active or inactive are dangerous. The only dangerous volcanoes are dormant volcanoes that explode suddenly with little or no warning.


Does earth venus and mars have volcanoes?

Venus definitely have more volcanoes than Mars. Yes, Venus and Mars have pretty much all extinct and dormant volcanoes, but they're still volcanoes. Think of it like this: when someone dies or is in a coma, that doesn't mean they're not human. Yes I know that was dark deal with it :P


What are some similarities between mountains and volcanoes?

hmm... probably... 1. They are both tall 2. They both form at convergent plate boundaries 3. They both lie on plate boundaries ( could be active ones ) yep, thats all i can think of. Hope this help :)


What countries does not have volcanoes?

I really think Canada, Singapore and Malaysia are the countries have not volcanoes. Is That Right?


How many composite volcanoes are there?

you people think there are about 1000 volcanoes .


Why do you think that the work of geologists is important to our daily lives?

geologists affect our lives in the following ways. they monitor seismic activities within the earths interior and are able to warn us of impending earthquakes and impending shockwaves geologists monitor volcanoes and are able tom predict when the next eruption will occur and the expected magnitude geologists are also important in the process of drilling boreholes as they have crucial information on the type of soil found in different areas and they can offer crucial advice in the process of drilling bore holes geologists also moniter the earths magnetic fields and can use this fields to date rocks which can then tell us crucial movements of tectonic plates


Have there been any eruptions observed on mars?

No. There's some evidence of recent (geologically speaking, this means within the last ten million years or so) lava flows, but we have never observed any active volcanic eruptions on Mars. Some areologists (think geologists, except specializing in Mars rather than Earth) think volcanic activity is still possible on Mars, others think that Mars' volcanoes are now extinct (the mountains created by them still exist, of course; Olympus Mons is the solar system's largest known volcanic feature).


What is the Name of volcano that has never erupted?

With volcanoes, it is never absolutely certain.But a volcanic feature that should not erupt again is called extinct. One that is not expected to erupt is called dormant. A volcano that might erupt again is called active.The word extinct is usually used for volcanoes that last erupted many thousands of years ago, and show little or no signs of tectonic activity.


Are whale sharks extinct?

no, but i think they might almost be extinct!