Figure 1: Reconstructed 1.8 Ga Nuna and sketch map of the North China Craton. | Nature Communications

Figure 1: Reconstructed 1.8 Ga Nuna and sketch map of the North China Craton.

From: Paleoproterozoic high-pressure metamorphism in the northern North China Craton and implications for the Nuna supercontinent

Figure 1

(a) The North China Craton (NCC) and Siberia are in the core of Nuna11,12. The active margin of SW Siberia and North NCC are juxtaposed, and the Trans-North China orogen continues to the Central Indian Tectonic Zone10. (b) Yinshan, Ordos, Longgang and Langrim are four Archean blocks that mutually collided to give rise to three Paleoproterozoic orogenic belts within the NCC19,20. The high-pressure granulite is from Zhao et al.20 and Zhai et al.21 The Alxa area (marked in Fig. 2) is on the northernmost margin of the craton.

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