{"id":123964,"date":"2021-06-19T01:23:03","date_gmt":"2021-06-19T08:23:03","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2021\/06\/the-27-5-million-year-cycle-of-geological-activity"},"modified":"2021-06-19T01:23:03","modified_gmt":"2021-06-19T08:23:03","slug":"the-27-5-million-year-cycle-of-geological-activity","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2021\/06\/the-27-5-million-year-cycle-of-geological-activity","title":{"rendered":"The 27.5-million-year cycle of geological activity"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/the-27-5-million-year-cycle-of-geological-activity2.jpg\"><\/a><\/p>\n<p>Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a \u2018pulse,\u2019 according to a new study published in the journal Geoscience Frontiers.<\/p>\n<p>\u201cMany geologists believe that geological events are random over time. But our study provides statistical evidence for a common <a href=\"https:\/\/phys.org\/tags\/cycle\/\" rel=\"tag\" class=\"\">cycle<\/a>, suggesting that these geologic events are correlated and not random,\u201d said Michael Rampino, a geologist and professor in New York University\u2019s Department of Biology, as well as the study\u2019s lead author.<\/p>\n<p>Over the past five decades, researchers have proposed cycles of major geological events\u2014including <a href=\"https:\/\/phys.org\/tags\/volcanic+activity\/\" rel=\"tag\" class=\"\">volcanic activity<\/a> and mass extinctions on land and sea\u2014ranging from roughly 26 to 36 million years. But early work on these correlations in the <a href=\"https:\/\/phys.org\/tags\/geological+record\/\" rel=\"tag\" class=\"\">geological record<\/a> was hampered by limitations in the age-dating of geologic events, which prevented scientists from conducting quantitative investigations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a \u2018pulse,\u2019 according to a new study published in the journal Geoscience Frontiers. \u201cMany geologists believe that geological events are random over time. But our study provides statistical evidence for a common cycle, suggesting that these geologic events are correlated and not [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-123964","post","type-post","status-publish","format-standard","hentry","category-existential-risks"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/123964","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=123964"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/123964\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=123964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=123964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=123964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}