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i1052-5173-26-9-4-f02
 

Figure 2.

Schematic sections of Hadean, Archean, and modern continental crust. Hadean and Archean sections adapted from Kamber et al. (2005) and modern crust from Hawkesworth and Kemp (2006). TTG—tonalite-trondhjemite-granodiorite.

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