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| 2009, Vol. 11(5): 513-523 DOI: 10.7605/gdlxb.2009.05.005 | ||
| Internal-wave and internal-tide deposits of the Middle Ordovician Xiangshan Group Xujiajuan Formation， Ningxia | ||
| Li Xiangdong1, He Youbin1, Wang Dan1, Gao Zhenzhong1, Zheng Zhaochang2 | ||
| 1 School of Earth Science， Yangtze University， Jingzhou 434023， Hubei 2 Ningxia Bureau of Geology and Mineral Resources， Yinchuan 750021， Ningxia |
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| Received 2009-01-19 Revised 2009-04-07 | ||
| Supporting info | ||
| null | ||
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