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Zealandia: Earth’s Hidden Eighth Continent- Pre Facts


Context:- A team of international seismologists and geologists have meticulously charted Zealandia, an elusive submerged continent in the South Pacific Ocean. Through extensive analysis of rock and sediment samples from the ocean floor, scientists have redefined Zealandia’s status, recognizing it as a continent rather than a microcontinent due to its distinct geology and expansive landmass.

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Key Insights:

Continent Characteristics: Zealandia, encompassing 4.9 million square kilometers, predominantly lies underwater, with 94% of its area submerged. Zealandia meets essential criteria defining a continent. It has unique geology and a well-defined area, with a much thicker crust compared to the ocean floor. The terrain stands elevated above the surrounding seabed, covering an extensive area of over one million square kilometers, separate from other continents.

Geological Significance: The landmass of Zealandia unveils a connection to the ancient Rodinia supercontinent, predating Gondwana. Granitic rock belts suggest connections to Rodinia. Zircon crystals within these rocks reveal formations dating a billion years, hidden deep in Fiordland’s crust.


The revelation of Zealandia represents a pivotal discovery, identifying it as Earth’s concealed continent submerged in the South Pacific Ocean. Through meticulous analysis and advanced mapping techniques, scientists unveiled Zealandia’s unique geological attributes. Consequently, this reclassification elevated it from a microcontinent to a distinguished entity on Earth’s map.

Read Also: How Coral Reefs Are Made?

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