TY - JOUR T1 - Challenges in application of radiocarbon dating of organic carbon phases in opal-rich marine sediments from the Southern Ocean JF - Trans. AGU 79 Y1 - 1998 A1 - Zheng, Y. A1 - Anderson, R. F. A1 - Froelich, P. N. A1 - Beck, W. A1 - McNichol, A. P. A1 - Guilderson, T. N1 - id: 266 ER -