A New Discovery of ～3.0 Ga Tonalitic Gneiss in Northern Liaoning Province, China

摘要

Objective The North China Craton,bounded by the Paleozoic Central Asian Orogenic Belt on the north and by the Qinling–Dabie–Su–Lu Orogenic Belt on the south,is one of the oldest continental nuclei on Earth as a consequence of its preservation of some of the oldest rock records ranging up to ca.3.85 Ga and mineral older than 4.0 Ga(Li et al.,2016,2017).Ancient zircons have been extensively reported from different parts of the craton。