Milankovitch Cyclicity and Time Scale of the Middle and Upper Devonian |
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| Abstract: | In a study of the Devonian of South China, chemobiostratigraphic methods in particular have proven useful for estimating the time span of a biozone. Proxy eustasy cycles with a recurrence interval of 0.1 m.y. are recognized. These appear to be related to Milankovitch eccentricity cycles, and hence may have the potential for use in timing. Time spans of conodont zones and states of the Middle and Upper Devonian in South China are presented. |
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