Provenance of the Paleoproterozoic Hutuo Group basal conglomerates and Neoarchean crustal growth in the Wutai Mountains, North China Craton: Evidence from granite and quartzite pebble zircon U-Pb ages and Hf isotopes
Provenance of the Paleoproterozoic Hutuo Group basal conglomerates and Neoarchean crustal growth in the Wutai Mountains, North China Craton: Evidence from granite and quartzite pebble zircon U-Pb ages and Hf isotopes
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华北克拉通五台山古元古代滹沱群基底砾岩物源及新太古代地壳生长:来自花岗岩和石英岩卵石锆石U-Pb年龄和Hf同位素的证据
DOI：
10.1007/s11430-012-4407-2
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发表时间：
2012-04
期刊：
影响因子：
--
通讯作者：
Geng Yuansheng Hou Kejun
中科院分区：
文献类型：
--
作者：
Wan Yusheng;Song Huixia;Gao Linzhi;Geng Yuansheng Hou Kejun
本文报道了五台山地区滹沱群四季庄组底砾岩中两个花岗岩和两个石英卵石的锆石U-Pb年龄（SHRIMP和LA-ICPMS）和Lu-Hf同位素数据。这两个花岗质卵石的锆石207Pb/206Pb年龄分别为2513 ± 8Ma和2527 ± 8Ma，与五台山王家会灰色花岗岩和光明寺或石佛花岗岩的侵位年龄一致。这两个石英卵石中的碎屑锆石年龄大多为2550-2490 Ma，少量为2800-2550 Ma，与五台群高凡亚群石英岩中的碎屑锆石年龄相近。因此，滹沱群底砾岩中的卵石是五台山新太古代的局部物源。四季庄组砾岩花岗岩和石英卵石中的锆石大多具有正的Hf（t）值，少数具有与同时代的模式亏损地幔（DM）相似的Hf（t）值，但大多数显示DM模式年龄为200-100 Ma。这表明，大部分的源物质来自地幔在过去的2亿年，而一些来自2550 - 2510 Ma的年轻地壳添加物。这一新证据表明，在华北陆缘，在新太古代晚期，在叠加古元古代造山旋回之前，有重要的初始多旋回地壳形成和陆壳化。
Zircon U-Pb ages (SHRIMP and LA-ICPMS) and Lu-Hf isotope data (LA-ICPMS) are presented for two granite and two quartzite pebbles from the basal conglomerates of the Sijizhuang Formation in the Hutuo Group from the Wutai Mountains area in the North China Craton. These two granite pebbles give zircon207Pb/206Pb ages of 2513±8 Ma and 2527±8 Ma respectively, which are consistent with the emplacement ages of the Wangjiahui grey granite and Guangmingsi or Shifo granite in the Wutai Mountains. Detrital zircons from those two quartzite pebbles are mostly 2550–2490 Ma old with lesser number of 2800–2550 Ma grains, which is similar to the ages of detrital zircons from quartzites in the Gaofan Subgroup of the Neoarchean Wutai Group. Thus, the pebbles in the Hutuo Group basal conglomerates were derived locally from Wutai Mountains Neoarchean sources. Zircons from the Sijizhuang Formation conglomerate granite and quartzite pebbles mostly have positiveɛHf(t) values, a minority withɛHf(t) values like model depleted mantle (DM) of the same age, but with most showing DM model ages 200-100 Ma. This indicates that most of the source materials were derived from the mantle within the previous 200 million years, whereas some are derived from 2550-2510 Ma juvenile crustal additions. This additional evidence suggests that in the North China Craton there was important initial polycyclic crustal formation and cratonization in the late Neoarchaean, prior to superimposed Palaeoproterozoic orogenic cycles.
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DOI：
10.1144/gsl.sp.2004.226
发表时间：
2004
期刊：
Geological Society, London, Special Publications
影响因子：
--
作者：
J. Malpas;C. Fletcher;J. Ali;J. Aitchison
通讯作者：
J. Malpas;C. Fletcher;J. Ali;J. Aitchison
DOI：
10.1111/j.1755-6724.2006.tb00303.x
发表时间：
2006-12
期刊：
Acta Geologica Sinica ‐ English Edition
影响因子：
--
作者：
Guochun Zhao;Liu Shuwen;M. Sun;Li Sanzhong;S. Wilde;X. Xia;Jian Zhang;Yanhong He
通讯作者：
Guochun Zhao;Liu Shuwen;M. Sun;Li Sanzhong;S. Wilde;X. Xia;Jian Zhang;Yanhong He
DOI：
10.1111/j.1755-6724.2006.tb00310.x
发表时间：
2006-12
期刊：
Acta Geologica Sinica ‐ English Edition
影响因子：
--
作者：
Jian Zhang;Guochun Zhao;Li Sanzhong;M. Sun;Liu Shuwen;X. Xia;Yanhong He
通讯作者：
Jian Zhang;Guochun Zhao;Li Sanzhong;M. Sun;Liu Shuwen;X. Xia;Yanhong He
影响因子：
3.8
作者：
Guochun Zhao;S. Wilde;Peter A. Cawood;M. Sun
通讯作者：
Guochun Zhao;S. Wilde;Peter A. Cawood;M. Sun
影响因子：
3
作者：
Fu-Yuan Wu;Guochun Zhao;S. Wilde;Deyou Sun
通讯作者：
Fu-Yuan Wu;Guochun Zhao;S. Wilde;Deyou Sun