A reconstruction of the proposed first Proterozoic supercontinent Columbia at 1800 Ma, configured by Zhao et al. (2002).





The proposed reconstruction of Rodinia at 750 Ma configured by Torsvik (2003).






85 billion years old high-pressure garnet-bearing granulite from one of the earliest collisional orogens in China
From: Trans-North China Orogen, Hengshan Complex
Size: 10 cm




85 billion years old metamophic rock, a high-pressure
garnet-bearing granulite from one of the earliest collisional orogens in China

From: Trans-North China Orogen, Hengshan Complex
Size: 15cm