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ScienceBlog.com
scienceblog.com > s-sixty-magnetic-profiles-flown-across-the-arctics-gakkel-ridge-in-1974-and-1975-classify-about-68-percent-of-the-seafloor-they-cross-from-the-present-back-to-roughly-35-million-years-ago-as

Sixty magnetic profiles flown across the Arctic's Gakkel Ridge in 1974 and 1975 classify about 68 percent of the seafloor they cross, from the present back to roughly 35 million years ago, as exhumed mantle rather than volcanic crust

1+ week, 4+ day ago   (247+ words) The Gakkel Ridge is the slowest spreading mid ocean ridge on Earth, and the new reading suggests its melt reaches the surface in bursts rather than in a continuous supply. By Science Blog Editorial Team Published September 3, 2026 · How we edit…...

ScienceBlog.com
scienceblog.com > d-scientists-sent-robots-more-than-two-kilometres-beneath-the-pacific-and-mapped-enormous-lava-fields-around-an-active-volcano-revealing-how-molten-rock-once-pooled-swelled-beneath-a-hardened

Scientists sent robots more than two kilometres beneath the Pacific and mapped enormous lava fields around an active volcano — revealing how molten rock once pooled, swelled beneath a hardened crust and burst outward to reshape the ocean floor

2+ week, 7+ hour ago   (684+ words) The ocean floor's violent geology remains largely hidden—until robotic expeditions reveal how molten rock sculpts the seafloor in ways that challenge what we thought we knew about underwater volcanism. Published August 31, 2026 · How we edit Two kilometres under the Pacific,…...

ScienceBlog.com
scienceblog.com > t-earth-inner-core-backtracking-earthquakes-day-length-magnetic-field

Earth's inner core has begun drifting backward relative to the surface after decades of moving slightly faster — a reversal detectable only through earthquakes, tied to millisecond-scale changes in the length of a day and to dynamics deep inside the planet that also influence its magnetic field.

4+ week, 20+ hour ago   (1075+ words) Repeating earthquakes show Earth's solid inner core retracing its position relative to the mantle, while newer work reveals deformation in the same deep boundary region. By The Long View · Edited by Lachlan Brown Published August 16, 2026 · How we edit Earth’s inner…...