A Huge Water Reservoir Is Hidden Inside the Earth and May Contain Three Times the Volume of the Oceans, Study Suggests

Written by Ruth Rodrigues

Published on 03/08/2025 at 11:17

Pesquisadores encontram evidências de que água pode estar armazenada em minerais a centenas de quilômetros de profundidade, revelando um ciclo hidrológico profundo e pouco conhecido. Fonte: gerado por Inteligência Artificial

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Researchers Find Evidence That Water May Be Stored in Minerals Hundreds of Kilometers Deep, Revealing a Deep and Little-Known Hydrological Cycle.

Scientists have announced new evidence that a vast reservoir of water may be hidden deep within the Earth. According to a study published in the journal Communications Earth & Environment, this subterranean reservoir could contain a volume up to three times greater than all the oceans combined.

However, the water would not be in a liquid state. It would be trapped within the crystalline structure of minerals found between the upper and lower mantle, about 700 kilometers deep.

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How Water May Have Reached the Interior of Planet Earth?

According to researchers, the process of subduction – when a tectonic plate slides under another and sinks into the Earth’s interior – may have been responsible for transporting water from the surface to these deep regions.

This theory was strengthened by the analysis of rock samples collected in southern China, in the Emeishan Igneous Province. The results showed chemical compositions different from the typical ones of the Earth’s mantle, closer to those of subducted oceanic rocks.

The study highlighted the presence of ringwoodite, a mineral that acts like a sponge capable of storing water.

Identified in samples from the mantle transition zone, it reinforces the hypothesis that part of the planet’s water may have internal origins, not just external, as previously believed.

Previous Research and New Possibilities About the Water Reservoir

Seismic investigations conducted in 2014 had already indicated the presence of water in this region. At that time, analyses using thousands of sensors showed that earthquake waves behaved in a way consistent with the existence of moisture.

Now, the new data deepens this line of research, expanding the understanding of the water cycle on the planet.

According to experts, understanding this reservoir may help unravel the dynamics of the Earth and its geological evolution.

Additionally, other locations, such as the Columbia River Igneous Province in the United States, may hide similar clues. Scientists say that new studies are essential to identify the true size of this water stock and understand how it influences the planet’s history.

A Huge Water Reservoir Is Hidden Inside the Earth and May Contain Three Times the Volume of the Oceans, Study Suggests

Researchers Find Evidence That Water May Be Stored in Minerals Hundreds of Kilometers Deep, Revealing a Deep and Little-Known Hydrological Cycle.

How Water May Have Reached the Interior of Planet Earth?

Previous Research and New Possibilities About the Water Reservoir

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A Huge Water Reservoir Is Hidden Inside the Earth and May Contain Three Times the Volume of the Oceans, Study Suggests

Researchers Find Evidence That Water May Be Stored in Minerals Hundreds of Kilometers Deep, Revealing a Deep and Little-Known Hydrological Cycle.

How Water May Have Reached the Interior of Planet Earth?

Previous Research and New Possibilities About the Water Reservoir

A village with 115 inhabitants wants new residents: it offers a house, a job, up to 44 thousand euros in benefits, almost free rent, an annual grant of 8 thousand euros for 3 years, and a 20 thousand euro incentive for businesses in the mountains of Italy.

Seven world powers including the US, China, and Russia are spending €22 billion on a reactor in the south of France that aims to confine plasma at 150 million degrees Celsius, ten times the temperature of the Sun’s core, using a magnetic field capable of lifting an entire aircraft carrier.

With a wingspan of 152 meters, 76 tires, and a capacity to carry 1,270 tons, the Boeing Pelican was the giant “flying ship” that promised to cross oceans close to the water on an invisible air cushion beneath its wings.

Elon Musk’s internet comes to mobile: Starlink technology connects smartphones without an antenna via satellite, works even without carrier signal, already costs just US$10 extra in the US, and could arrive in Brazil as an included benefit.

While countries spend billions to draw water from the sea, a Nobel-winning scientist creates a container-sized machine that extracts up to 1,000 liters per day from dry air and uses ultrasound to release water in minutes, even in the middle of the desert.

After 16 years and almost 600 prototypes, a Chinese inventor unveils the world’s smallest and cheapest manned jet, at just 3.80 meters long and costing US$7.2 thousand in materials.

Belgium will sink 23 giant concrete caissons, each weighing 22,000 tons, in the North Sea to build the world’s first artificial energy island 45 km off the coast, forming offshore electrical walls.

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