New U-Pb and Hf isotopic data confirm Anshan as the oldest preserved segment of the North China Craton Liu, D. ; Wilde, S. A. ; Wan, Y. ; Wu, J. ; Zhou, H. ; Dong, C. ; Yin, X. Abstract Publication: American Journal of Science Pub Date: March 2008 DOI: 10.2475/03.2008.02 Bibcode: 2008AmJS..308..200L