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![]() Date: 2013-07-24 00:11:40Carnian Historical geology Geological history of Earth Geology Ordovician Perth Basin | Source URL: www.ga.gov.auDownload Document from Source WebsiteFile Size: 508,48 KBShare Document on Facebook |
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![]() | Carnian/Norian boundary based on conodonts corresponds to basal Newark magnetozone E7 at about 228 Ma (adopting Newark astrochronology), implying a long Norian with a duration of l20m.y. and a Rhaetian of about 6 m.y. duDocID: 1eVTk - View Document |
![]() | Goldschmidt Conference Abstracts Marine and terrestrial palaeoclimate proxies from the stable isotope analysis of North African molluscs AMY L. PRENDERGAST1, RHIANNON E. STEVENS2,DocID: 17CP0 - View Document |