Mulde event
Template:Short description Script error: No such module "Graphical timeline". The Mulde event was an anoxic event,[1] and marked the second of three1 relatively minor mass extinctions (the Ireviken, Mulde, and Lau events) during the Silurian period. It coincided with a global drop in sea level, and is closely followed by an excursionScript error: No such module "Unsubst". in geochemical isotopes. Its onset is synchronous with the deposition of the Fröjel Formation in Gotland.[1] Perceived extinction in the conodont fauna, however, likely represent a change in the depositional environment of sedimentary sequences rather than a genuine biological extinction.[2]
Higher resolution δ13C isotope analysis identifies differences in the organic and carbonate carbon isotope curves (Δ13C), allowing the inference of a sustained drop in CO2 levels coincident with the extinction once sedimentological data are taken into account.[3]
Notes
<templatestyles src="Citation/styles.css"/>^1 The Ireviken, Mulde, and Lau events were all closely followed by isotopic excursions.
References
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