Altaid tectonic collage

Sengdr A. M. G., Natalin B. A., and Burtman V. S. (1993) Evolution of the Altaid tectonic collage and Palaeozoic crustal growth in Eurasia. Nature 364, 299-307. 

More recently Nd-model ages have been used to identify a large area in Central Asia, the Altaid Tectonic Collage, which was the site of voluminous juvenile crust generation during the Phanerozoic. Studies in this remote, relatively unknown region have estimated that up to 50% of the crust is juvenile and of Paleozoic age (Patchett St Samson, 2003 Jahn, 2004). 

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