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11 votes

How plausible is it that "a portion of the ocean's floor" could suddenly be "thrown up to the surface" as described in this Lovecraft story?

Generally the Earth's geology moves very slowly, ... very slowly. When people use the term geological time scales they mean a very long period of time, usually in the millions of years. In volcanic ...
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9 votes

How plausible is it that "a portion of the ocean's floor" could suddenly be "thrown up to the surface" as described in this Lovecraft story?

Very implausible. If your sailor is actually in the middle of the ocean, there are several kilometres of water underneath. Nothing that we know of can uplift kilometres of rock overnight, at least ...
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3 votes

How plausible is it that "a portion of the ocean's floor" could suddenly be "thrown up to the surface" as described in this Lovecraft story?

Putting a piece of oceanic crust on land is an existing geological process called obduction. However, it is not a sudden process, but rather a very slow one. Now, there is one process that can lift ...
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2 votes

How plausible is it that "a portion of the ocean's floor" could suddenly be "thrown up to the surface" as described in this Lovecraft story?

The rock on the ocean floor is not likely to well up to the surface anytime soon. But methane can. Methane, formed from biological processes or decay of organic matter at sea bottoms, forms water-ice ...
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1 vote

For how long can mid-oceanic islands be volcanically active?

There is a series of volcanic islands in the Atlantic. Besides St. Helena there are for example Bermuda, Madeira, The Canary Islands, Ascension, Tristan da Cunha, The Azores, and Iceland, which is ...
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1 vote

Why is Earth's age given by dating meteorites rather than its own rocks?

Patterson could not age the Earth from Uranium to lead decay root because the Zircon samples were contaminated by lead pollution at that time. So he used meteorites under the assumption that they were ...
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