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中文摘要：
从西方的山东的 Tietonggou 侵入的四纯橄榄岩捕虏体，中国，受到标明日期抑制北方中国 Craton (NCC ) 破坏预定的虾锆石 U-Pb，许多争吵的一个话题。阴极射线发光图象表明从捕虏体的 18 锆石谷物中的 15 个显示有斑纹的吸收。剩余的显示出摆动的生长 zoniation。所有锆石有 Th 的可变内容(493569 ppm；平均， 885 ppm ) 并且 U (1845398 ppm；平均， 1277 ppm ) ，并且可变 Th/U 比率(0.152.04 ) 。这些锆石特征显示 magmatic 起源。锆石年龄数据能被划分成五个组：131145， 151164， 261280， 434452，和 500516 妈。组(131145 妈) 我与 Tietonggou high-Mg 闪长岩的形成预定历久不渝。组 II (151164 妈) 在到在东方 NCC 的中间迟了的侏罗记 magmatism 的年龄是类似的，它包括了导出披风、集中的导出外壳的 magmatism。组 III (261280 妈) 在到 Emeishan 大火的省的年龄是类似的，并且组 IV (434452 妈) 在到在东方 NCC 的古生代的高硅石的 magmatism 的年龄是类似的。组 V (500516 妈) 可以对应于全球平底锅非洲人事件。结果在东方 NCC 显示 lithospheric 披风的重复修正，并且建议最集中的修正发生在迟了的中生代(131164 妈) 。
英文摘要：
Four dunite xenoliths from the Tietonggou intrusion of western Shandong, China, were subjected to SHRIMP zircon U-Pb dating to constrain timing of the North China Craton （NCC） destruction, a topic of much controversy. Cathodoluminescence images revealed that 15 of the 18 zircon grains from the xenoliths display striped absorption. The rest showed oscillatory growth zoni- ation. All the zircons had variable contents of Th （49-3569 ppm; average, 885 ppm） and U （184-5398 ppm; average, 1277 ppm）, and variable Th/U ratios （0.15-2.04）. These zircon characteristics indicate a magmatic origin. The zircon age data can be divided into five groups： 131-145, 151-164, 261-280, 434-452, and 500-516 Ma. Group I （131-145 Ma） is consistent with timing of formation of the Tietonggou high-Mg diorites. Group II （151-164 Ma） is similar in age to Middle-Late Jurassic magmatism in the eastern NCC, which included both mantle-derived and intensive crust-derived magmatism. Group III （261-280 Ma） is similar in age to the Emeishan large igneous province, and Group IV （434-452 Ma） is similar in age to Paleozoic high-silica magmatism in the eastern NCC. Group V （500-516 Ma） may correspond to the global Pan-African event. Results indicate repeated modification of lithospheric mantle in the eastern NCC, and suggest that the most intensive modification occurred in the late Mesozoic （131-164 Ma）.
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