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The strange race to track down a missing billion years​​​​​​​ (The Great Unconformity)


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The strange race to track down a missing billion years
Zaria Gorvett, BBC News, September 1, 2021


A billion years have vanished from the geological record –
and over 152 years after this was first discovered,
scientists can't agree on why.


Some papers:

Peters, S.E. and Gaines, R.R., 2012. Formation of the ‘Great

Unconformity’as a trigger for the Cambrian explosion. Nature, 

484(7394), pp.363-366.


Keller, C.B., Husson, J.M., Mitchell, R.N., Bottke, W.F., Gernon,

T.M., Boehnke, P., Bell, E.A., Swanson-Hysell, N.L. and Peters,

S.E., 2019. Neoproterozoic glacial origin of the Great Unconformity.

Proceedings of the National Academy of Sciences, 116(4),

pp.1136-1145. Open access


Marshak, S., Domrois, S., Abert, C., Larson, T., Pavlis, G.,

Hamburger, M., Yang, X., Gilbert, H. and Chen, C., 2017.
The basement revealed: Tectonic insight from a digital

elevation model of the Great Unconformity, USA cratonic

platform. Geology, 45(5), pp.391-394.




Paul H.

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