New Mexico University Study Suggests Earth's Water Formed Through Hydrogen-Rock Reactions

Investigating the Origins of Earth's Water

According to НВ — Техно: Scientists at the University of New Mexico have discovered that Earth's water may have been produced by chemical reactions between hydrogen and rocky minerals during the planet's early formation. Laboratory tests demonstrated that this process occurs rapidly-within minutes-and has the potential to generate water quantities comparable to hundreds of Earth's oceans. This newly identified mechanism could shed light on how water appeared not only on Earth but also on other rocky planets.

Details of the Experimental Approach

In their experiments simulating early Earth conditions, researchers observed that water formation resulted from hydrogen interacting with rock samples heated to temperatures between 1200 and 1400 °C. Reaction durations ranged from 15 minutes up to three hours. Remarkably, nearly 80% of the iron oxide in the samples was transformed into metallic iron through this reaction, accompanied by the release of water vapor.

The study also found that a similar reaction did not take place in helium environments, indicating the process requires specific atmospheric conditions. These findings support the idea that such hydrogen-rock interactions could have occurred during Earth's formation, when hot, dense environments allowed rocky particles to react with abundant hydrogen.

While this reaction pathway might explain water origins on other terrestrial planets, the research does not yet clarify the exact proportion of Earth's water produced this way. The team emphasizes that further investigations are necessary to draw definitive conclusions.

“The outcomes were unexpected,” remarked Zachary Sharp, one of the lead researchers.

This discovery challenges existing theories about how water emerged on Earth and other planets, opening new avenues for studying planetary geology beyond our solar system. Understanding the role of hydrogen-rock reactions in water formation highlights the importance of early planetary conditions, which could be crucial in the search for extraterrestrial life.

This groundbreaking study not only reshapes our understanding of water's origins on Earth but also invites comparisons to recent findings about hydrogen's journey from the planet's core to the mantle. Such insights reveal a complex interplay of geological processes over billions of years. For a deeper exploration of how hydrogen may have influenced Earth's formation, check out the article on hydrogen escape from Earth's core.