Author Topic: Ocean's Away?  (Read 20 times)

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Ocean's Away?
« on: May 08, 2020, 10:23:07 pm »

A geologic mystery is stumping scientists after a new seismic study revealed the Earth’s crust is swallowing three times the amount of sea water as originally thought.

The study, which was published in Nature last month, sheds new light on Earth’s complex water cycle, a subject that is still shrouded in mystery.

When Earth’s tectonic plates converge, one of the plates moves beneath the other, or subducts. The deepest subduction zone, lying nearly 7 miles below sea level, is the Mariana Trench, which was the prime location for the study.

The study’s results revealed that for the Mariana Trench alone, four times more water subducts than previously thought.

Researchers then used their results to extrapolate the conditions of other oceanic trenches across the world, but will be conducting further study in the future, according to Source.

“Then estimates of the global water flux into the mantle at depths greater than 100 kilometres must be increased by a factor of about three compared to previous estimates,” the study authors wrote.