User:Kent.condie

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Condie CIDER topics

Condie CIDER topics 5/11/2013

1) Growth and Recycling of Continental Crust

The emphasis will be on preservation versus generation of continental crust coinciding with zircon age peaks. I will concentrate of the zircon age record and the correlation of peaks with the supercontinent cycle. In particular, how, when and where is juvenile crust preserved in collisional and accretionary orogens? It will include discussion of the use of Hf isotopes in zircons and whole rock Nd isotopes to constrain juvenile crust addition rates.

Reading Assignment: Chapters 7 and 8: Condie 2011, Earth as an Evolving Planetary System, Second Edition, Academic Press, Amsterdam.

Other Readings:

Condie, 2013, Geosciences 2013, 3, 240-261

Dhuime et al 2012 Science 335: 1334-1336

Scholl/ Von Huene, Geological Society London, Special Publ. 318: 105-125


2) Plate Tectonics and Continental Evolution

This topic will focus on the geological and geochemical evidence for a major change in Earth's evolution in the late Archean, probably related to the widespread propagation of plate tectonics. It will include a discussion of mantle potential temperatures, trace element characteristics of basalts and how they are used to constrain mantle source compositions and tectonic settings, how to identify tectonic settings in the past, distribution of tectonic settings through time, biologic changes in the late Archean and similar topics. It will also include a summary of geophysical models of the mantle contrasting stagnant lid and plate tectonic regimes and how they could relate to episodic events in Earth history.

Reading Assignment: Chapters 8 and 9 (esp. Event 3): Condie 2011, Earth as an Evolving Planetary System, Second Edition, Academic Press, Amsterdam.

Other Readings:

Condie and Kroner, 2013, Gondwana Research 23: 394-402

Rollinson, 2008, G Cubed 9 (12), doi:10.1029/2008GC002262

Korenaga 2008, Terra Nova, doi: 10.1111/j.1365-3121.2008.00843.x

Reading Material

Lecture file

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