Volcanic ridges in Antarctica may explain ancient maps of ice-less Antarctica

So apparently they have just discovered some of the highest concentrations of volcanos in the world in Antarctica:

It (sort of) explains how it’s possible that the Ancients could have charted the region in mysterious maps on which Renaissance-era cartographers based some of their own very accurate maps of a snowless, iceless Earth-bottom.

These maps are known to be reasonably accurate when modern scientists have actually checked where all the land is under the snow.

These maps’ existences have also been embraced by theorists who hold the view that the ancients travelled around the world before an Ice Age that wiped out civilisations – or perhaps one world civilisation that was more highly advanced than we give credit for. (Graham Hancock is one such writer.)

In pop culture, they’re what the original Alien Vs Predator plot hung on, but it crops up far less in DaVinciCode or Indiana Jones type adventures than it should.

The idea goes that Renaissance and medieval map-makers had some sources from (say) Alexandria or from the Arabs, who had retained ancient manuscripts that would otherwise not have survived.

So more than ten millennia ago, given the presence of these volcanos, it is more possible this week than it was last week (in terms of what we know) that the Antarctic ice cap was melted at some point during human development. We now know that it could have been done by serious amounts of volcanic activity, and it’s perhaps made such fringe theories related to a highly advanced prehistoric human civilisation more of a possibility.

These ideas about the ancients also feature massive amounts of post-diluvian PTSD for our ancestors. Theorists such as Hancock put forward something like the following:
Imagine all of the coastal cities and towns being wiped out by a deluge. Imagine most of your doctors, engineers, scientists, parents and friends being killed.
You’re left with a mass of dribbling, traumatised people who can no longer tie their own shoelaces, telling fables about how Noah’s Ark, or a Chinese dam-builder, or people who sprung from maize instead of mud, wiped away the sin, or started afresh.

Of course, there are other details related to this rendering of a prehistorical civilisation. Potentially a green and fertile Antarctic continent could even have been the seat of Atlantis. But if there was a world flood, causing tsunami across the planet, how did mapmakers chart the southernmost continent if it had been under the ice to begin with? The melt has to have come from elsewhere.
Would volcanic activity have had to cause such a catastrophe, followed by the flooding?

Perhaps Antarctica had been dry and habitable, and the tsunami were caused (as Hancock has suggested) by masses of Arctic Ocean ice falling into the seas before the last Ice Age.
Perhaps huge levels of world volcanic activity caused a big drowny melt before causing the equivalent of a nuclear winter, and it had nothing to do with Antarctic ice. Or perhaps Antarctica WAS partially covered, and partially free of ice, and those tsunami came up via the Pacific and Atlantic and Southern Oceans, building and building until they hit the more inhabited Northern Hemisphere and Equatorial regions.

Apparently the only region of the world without a flood myth is Japan. And they have a volcano myth. If there was a lot of seismic rupturing coming out of the world’s botty, maybe the Japanese were similarly, simultaneously affected, by similar stuff. Or maybe their seafaring folk witnessed the Antarctic events themselves firsthand.

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