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Feb 12, 2020

The lost continent of Zealandia hides clues to the Ring of Fire’s birth

Posted by in category: futurism

The hidden undersea continent of Zealandia underwent an upheaval at the time of the birth of the Pacific Ring of Fire.

Zealandia is a chunk of continental crust next door to Australia. It’s almost entirely beneath the ocean, with the exception of a few protrusions, like New Zealand and New Caledonia. But despite its undersea status, Zealandia is not made of magnesium- and iron-rich oceanic crust. Instead, it is composed of less-dense continental crust. The existence of this odd geology has been known since the 1970s, but only more recently has Zealandia been more closely explored. In 2017, geoscientists reported in the journal GSA Today that Zealandia qualifies as a continent in its own right, thanks to its structure and its clear separation from the Australian continent.

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