A rock plunged 90 kilometers into Earth and revealed something unexpected
Researchers discovered a rock from Papua New Guinea that traveled 90 kilometers into the Earth's interior, revealing unexpected temperature patterns. The findings challenge existing models of tectonic plate subduction and heat distribution.
Why it matters
This discovery provides new insights into the geological processes that shape the Earth's crust and regulate the planet's climate over millions of years.
A remarkable rock discovered in Papua New Guinea has revealed an unexpected temperature pattern deep beneath Earth's surface, challenging scientists' understanding of how tectonic plates move into the planet's interior.
An international research team led by G ttingen University found that the rock traveled more than 90 kilometers (56 miles) underground about four million years ago. Along the way, it experienced unusually high temperatures at shallower depths before entering conditions associated with a relatively cooler type of subduction.
The discovery raises new questions about how heat is distributed inside Earth and how tectonic plates behave as they descend. The findings were published in Nature Geoscience .
A Strange Discovery Deep Beneath Earth's Surface
Earth's outer shell is divided into enormous tectonic plates that slowly move across the planet. When two plates converge, one can be forced beneath the other and sink into Earth's interior. This process is called "subduction."
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