Baykonurian glaciation
Ice age around the beginning of the Cambrian Period
The Baykonurian glaciation is a glacial episode dating to around the Proterozoic–Phanerozoic boundary, at the end of the Ediacaran Period. The date of 547 million years ago has been proposed in the literature.[1] The glaciation is posited as a contributor to the Cambrian explosion.[1] Its deposits are known in regions of Asia and Africa, and it apparently affected both palaeohemispheres. Glacial deposits possibly related to this glaciation have been found to be dated between 549 and 530 Ma.[2] It is named for the Baykonur Formation in Central Asia.[1][3][2][4]
References
- ^ a b c Germs, G.J.B.; Gaucher, C. (2012). "Nature and extent of a late Ediacaran (ca. 547 Ma) glacigenic erosion surface in southern Africa". South African Journal of Geology. 115: 91–102. doi:10.2113/gssajg.115.91.
- ^ a b Chumakov, Nikolay (1 August 2009). "The Baykonurian glaciohorizon of the Late Vendian". Stratigraphy and Geological Correlation. 17 (4): 378–379. doi:10.1134/S0869593809040029. Retrieved 17 March 2020.
- ^ Chumakov, N. M. (30 November 2011). "Chapter 26 Glacial deposits of the Baykonur Formation, Kazakhstan and Kyrgyzstan". Geological Society, London, Memoirs. 36 (1): 303–307. doi:10.1144/M36.26.
- ^ "Project 512 Neoproterozoic ice ages" (PDF). Russian National Committee for IGCP—Annual Report on IGCP-related Activities 2010. Russian National Committee for IGCP. 2010. p. 11. Retrieved 7 November 2016.
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Ice ages
Late Cenozoic
| Quaternary |
|
|---|---|
| Pliocene Miocene Oligocene |
|
- Andean-Saharan (460 Mya to 430 Mya)
- Late Paleozoic icehouse (360 Mya to 260 Mya)
- Gaskiers (579.88 to 579.63 Mya)
- Baykonurian (547 to 541.5 Mya)
- Huronian (2.4 to 2.1 Gya)
- Pongola (2.9 to 2.78 Gya)
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