{"id":68504,"date":"2025-05-02T13:36:13","date_gmt":"2025-05-02T13:36:13","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/68504\/"},"modified":"2025-05-02T13:36:13","modified_gmt":"2025-05-02T13:36:13","slug":"research-on-meteorite-impact-rewrites-scotlands-geological-history","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/68504\/","title":{"rendered":"Research on meteorite impact rewrites Scotland’s geological history"},"content":{"rendered":"

\"ResearchThe Stac Fada Member. Credit: Tony Prave \"Kerry Kerry Taylor-Smith<\/a> 02\/05\/2025 14:00 3 min <\/p>\n

Scientists have rewritten Scotland<\/a>\u2019s geological history<\/strong> after discovering that a meteorite that struck the northwestern part of the country actually occurred 200 million years later than previously thought<\/strong>.<\/p>\n

The billion-year-old impact created the Stac Fada Member, a layer of rock that holds vital clues to Earth\u2019s ancient past <\/strong>and changes our understanding of the conditions during the development of non-marine life on Earth.<\/strong><\/p>\n

Crystal clues<\/p>\n

Tiny zircon crystals \u2013 geological time capsules \u2013 were to date the impact to 990 million years ago<\/strong>, rather than the previously thought 1.2 billion years ago.<\/p>\n

\u201cThese microscopic crystals recorded the exact moment of impact<\/strong>, with some even transforming into an incredibly rare mineral called reidite, which only forms under extreme pressures<\/strong>,\u201d explains Dr Chris Kirkland from the Frontier Institute for Geoscience Solutions Curtin University<\/a> in Western Australia<\/a>. <\/p>\n

\"Ancient<\/a><\/p>\n

\u201cThis provided undeniable proof<\/strong> that a meteorite strike caused the Stac Fada deposit. When a meteorite hits, it partially resets the atomic clocks inside the zircon crystals and these \u2018broken timepieces\u2019 are often unable to be dated but we developed a model to reconstruct when the disturbance occurred<\/strong>, confirming the impact at 990 million years ago.\u201d<\/p>\n

Analysis showed the impact event occurred around the same time as the emergence of some of the earliest known freshwater eukaryotes<\/strong>, the ancient ancestors of plants, animals and fungi. This revised date suggests that these lifeforms were living in Scotland<\/a> at a similar time to the meteorite impact.<\/p>\n

\"youtube<\/p>\n

\u201cThe Stac Fada impact occurred on a landscape sculpted by rivers, lakes and estuaries containing thriving microbial ecosystems<\/strong>,\u201d says Professor Tony Prave from the School of Earth and Environmental Sciences at the University of St Andrews<\/a>.<\/p>\n

\u201cImpacts typically blow away the land surface and create deep craters. What makes Stac Fada unique is that it preserves not only the record of the impact event but also of the actual land surface<\/strong> across which those ancient ecosystems existed prior to the impact and, importantly, how they recovered from such a natural disaster<\/strong>.\u201d<\/p>\n

Where\u2019s the crater?<\/p>\n

The findings raise questions about meteorite impacts and how they may have influenced environmental conditions<\/strong> in ways that affected early ecosystems.<\/p>\n

Kirkland says that the impact crater has yet to be found<\/strong>, but the \u201cstudy has collected further clues that could finally reveal its location. Understanding when meteorite impacts occurred helps us explore their potential influence on Earth\u2019s environment<\/strong> and the expansion of life beyond the oceans.\u201d<\/p>\n

News reference<\/p>\n

A one-billion-year-old Scottish meteorite impact<\/a>, Geology, 28th April 2025. Kirkland, C.L., et al.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"The Stac Fada Member. Credit: Tony Prave Kerry Taylor-Smith 02\/05\/2025 14:00 3 min Scientists have rewritten Scotland\u2019s geological…\n","protected":false},"author":2,"featured_media":68505,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5009],"tags":[748,34455,728,3926,26430,4884,2178,18862,712,16,15],"class_list":{"0":"post-68504","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-scotland","8":"tag-britain","9":"tag-crater","10":"tag-environment","11":"tag-evolution","12":"tag-geology","13":"tag-great-britain","14":"tag-marine-life","15":"tag-meteorite","16":"tag-scotland","17":"tag-uk","18":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/114438510049247546","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/68504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=68504"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/68504\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/68505"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=68504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=68504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=68504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}