Tectonics
Scientists have revealed that a hidden mantle plume contributed to the formation of the King's Trough Complex, a vast underwater canyon system in the North Atlantic larger than the Grand Canyon. Located about 1,000 kilometers off Portugal's coast, this 500-kilometer structure resulted from tectonic rifting between Europe and Africa millions of years ago. The findings, based on rock samples and seafloor mapping, highlight how deep Earth processes influence ocean floor features.
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Scientists have mapped over a thousand small mare ridges on the Moon, revealing ongoing contraction and potential seismic activity. These features, among the youngest on the lunar surface, form in the dark maria plains and share origins with known moonquake sources. The findings could guide safer landing sites for future missions like Artemis.