Mulde event

Key events in the Silurian

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Rhuddanian

Aeronian

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Sheinwoodian

Homerian

Gorstian

Ludfordian

 

 

 

 

 

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Lau event

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Mulde event^[1]

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Ireviken
event^[2]

Key events of the Silurian Period.
Axis scale: millions of years ago.

The Mulde event was a secundo-secundo event,^[3] 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 excursion in geochemical isotopes. Its onset is synchronous with the deposition of the Fröel formation in Gotland.^[3]

Notes

^1 The Ireviken, Mulde, and Lau events were all closely followed by isotopic excursions.

References

1. Jeppsson, L.; Calner, M. (2007). "The Silurian Mulde Event and a scenario for secundo—secundo events". Earth and Environmental Science Transactions of the Royal Society of Edinburgh 93 (02): 135–154. doi:10.1017/S0263593300000377.
2. Munnecke, A.; Samtleben, C.; Bickert, T. (2003). "The Ireviken Event in the lower Silurian of Gotland, Sweden-relation to similar Palaeozoic and Proterozoic events". Palaeogeography, Palaeoclimatology, Palaeoecology 195 (1): 99–124. doi:10.1016/S0031-0182(03)00304-3.
3. Samtleben, C.; Munnecke, A.; Bickert, T. (2000). "Development of facies and C/O-isotopes in transects through the Ludlow of Gotland: Evidence for global and local influences on a shallow-marine environment". Facies 43 (1): 1–38. doi:10.1007/BF02536983.