Oldest zircon xenocryst (4.17 Ga) from the North China Craton Cui, Pei-Long ; Sun, Jing-Gui ; Sha, De-Ming ; Wang, Xi-Jing ; Zhang, Peng ; Gu, A. -Lei ; Wang, Zhong-Yu Abstract Publication: International Geology Review Pub Date: November 2013 DOI: 10.1080/00206814.2013.805925 Bibcode: 2013IGRv...55.1902C