Geology

A new study shows that thawing permafrost can accelerate rock weathering, a process that removes carbon dioxide from the atmosphere and offsets emissions from rivers in some regions.

June 18, 2026 由 AI 报道

A new study finds that tectonic stress along Southern California's San Andreas and San Jacinto faults has reached levels unseen in the past millennium. Researchers identified Cajon Pass as an earthquake gate that could allow a rupture to spread across both systems. The findings, based on a physics-based model, highlight conditions that historically preceded major multi-fault events.

A team of scientists has identified a long-hidden underground formation beneath the United States dating back to the Jurassic period. The structure, described as a lost basement, may intensify the effects of future solar storms on the power grid.

May 02, 2026 由 AI 报道

A new study indicates that the Cascadia subduction zone and the northern San Andreas fault may trigger earthquakes in close succession, potentially amplifying disaster risks along the U.S. West Coast. Researchers identified evidence of such synchronization in ocean floor sediment cores spanning 3,100 years. This connection could affect cities from San Francisco to Vancouver simultaneously.

Harvard geoscientists have found the oldest direct evidence of plate tectonics on Earth, dating back 3.5 billion years. Analysis of ancient rocks from western Australia reveals early crustal drift and rotation. The discovery, published in Science, challenges notions of a rigid early planetary surface.

March 20, 2026 由 AI 报道

Researchers have identified volcanic eruptions, likely in Iceland, as the source of a mysterious platinum spike in Greenland ice cores from 12,800 years ago. This finding rules out a comet or asteroid impact and occurred decades after the onset of the Younger Dryas cooling period. The study provides new insights into abrupt climate shifts.