The magnitude of this hidden sea prompts a re-evaluation of Earth’s water cycle, suggesting a potential departure from theories positing comet impacts as the primary source. Instead, the notion that Earth’s oceans might have gradually seeped from its core gains prominence.Unveiling this underground ocean involved deploying an extensive network of 2000 seismographs across the United States, scrutinising seismic waves emitted by over 500 earthquakes.
These waves, traversing through Earth’s inner layers including its core, experience deceleration when passing through damp rock, indicating the presence of this extensive water reservoir.As per a latest development, a reservoir of water deep below Earth's surface that is three times the size of Earth’s oceans has been discovered by scientists.
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With this groundbreaking revelation in hand, researchers are eager to collect additional seismic data globally to ascertain the prevalence of mantle melting. Their findings hold the promise of revolutionising our comprehension of Earth’s water cycle, offering fresh perspectives on one of the planet’s fundamental processes.
If reports are to go by, it was discovered from Northwestern University in Evanston, Illinois, and that this subterranean water cache lies approximately 700 km beneath us.
The scientific endeavour behind this revelation was led by Steven Jacobsen, a researcher at Northwestern University, who asserts, “This constitutes significant evidence supporting the notion that Earth's water originated internally.”This discovery potentially reshapes our understanding of Earth’s water cycle, proposing that water may exist within the mantle, migrating amid rock grains.
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Jacobsen stresses the reservoir's significance, highlighting its role in maintaining water beneath Earth’s surface, without which water would predominantly reside on the planet’s surface, rendering only mountain peaks visible.
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