Earth's Biggest Disasters Strike In a Hidden Pattern Every 27 Million Years

地球最大规模的灾难以每2700万年为周期的隐藏规律爆发

来源: sciencealert.com | 主题: Earth | 评论: 6

时间: on Tuesday July 28, 2026 @03:00AM

A new analysis of 89 major geological events over the past 260 million years found evidence that mass extinctions, volcanic eruptions, ocean crises, and other upheavals may cluster around a roughly 27.5-million-year cycle . The cause remains unknown, with possibilities ranging from mantle activity and orbital changes to speculative galactic influences. Slashdot reader alternative_right shares a report from ScienceAlert: One possibility lies deep within Earth itself. The planet's mantle is constantly circulating through convection, albeit at an almost unimaginably slow pace. Periodic changes in mantle convection, or the initiation of mantle plumes, could influence volcanism, plate tectonics, mountain building, and other large-scale geological processes. Because these systems are closely int

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