U-Pb and Hf isotopic study of detrital zircons from the Hutuo group in the Trans-North China Orogen and tectonic implications

Liu, Chaohui; Zhao, Guochun; Sun, Min; Zhang, Jian; He, Yumei; Yin, Changqing; Wu, Fu‐Yuan; Yang, Jin‐Hui

doi:10.1016/j.gr.2010.11.016

Cited by 147 publications

(31 citation statements)

References 79 publications

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“…The high-grade metamorphic terrain and granitic greenstone at the eastern crustal basements of the North China Craton are mainly with late Archean age; the western TTG gneiss, supracrustal rocks and the Paleoproterozoic khondalite of North China Craton are formed at the late Archean; and the central orogen of North China Craton is composed of the late Archean to the Paleoproterozoic TTG gneiss, supracrustal rock, mafic dike swarm and syn-or post-tectonic granite. In the previous Archean metamorphic terrain, many blocks of Proterozoic granitic gneiss and supracrustal rocks have been discovered [14,[25][26][27][28][29][30][31][32][33][34][35]. The magmatic ages from this research are consistent with a) Errors are 1; Pb c and Pb* indicate the common and radiogenic portions, respectively.…”

Section: Discussionsupporting

confidence: 81%

SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance

Liu

et al. 2012

Chin. Sci. Bull.

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Pb ages were obtained from two drill cores from the basement of the Ordos Basin. A garnet-sillimanite-biotite-plagioclase gneiss (QI1-1) from the western Ordos Basin basement yielded an average age of 203110 Ma. Based on the mineral assemblages, the source material of the gneiss is speculated to be pelitic-felsic system. A gneissic two-mica granite (Long1-1) from the eastern Ordos Basin basement yielded an average age of 203510 Ma. The zircons from both samples exhibit magmatic growth pattern. The shapes of the zircons suggest that the zircons should crystallize from a granitic of felsic volcanic terrain. The ages and the characters of zircons are consisitent with the other researches in the Ordos Basin and indicate that the basement of the Ordos Basin had experienced an intensive magmatic epsode during the late Paleoproterozoic period. The date from this study suggest the possible existences of a Paleoproterozoic mobile tectonic belt in the region. The reconstruction of such a belt is critical for understanding the tectonomagmatic evolution of the western block of the North China Craton.North China Craton, Ordos Basin, metamorphic rock, granite, U-Pb age of zircon, Paleoproterozoic Citation:Hu J M, Liu X S, Li Z H, et al. SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance.

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Section: Discussionsupporting

confidence: 81%

SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance

Liu

et al. 2012

Chin. Sci. Bull.

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“…This new information should help in understanding and unraveling the complex framework and evolution of this classic craton. Zhao et al (2005Zhao et al ( , 2011; the Fengzhen, Jinyu, and Liao-Ji mobile belts by Zhai and Liu (2003); Inner-Mongolia-North Hebei Orogen by Kusky and Li (2003) and Kusky et al (2007); Taihang and Zanhuang Sutures by Trap et al (2012); and Gushan Suture of Peng et al (2012a). Also shown are strata of typical Paleoproterozoic volcano-sedimentary sequences in the North China Craton, e.g., the Hutuo, Lvliang, Yejishan, Zhongtiao, Liaohe and Erdaowa (Halaqin) Groups .…”

Section: Introductionmentioning

confidence: 97%

Genesis of the Hengling magmatic belt in the North China Craton: Implications for Paleoproterozoic tectonics

Peng

Guo

Zhai

et al. 2012

Lithos

127

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“…All these sequences have similar ages to the Gantaohe Group [16,[41][42][43][44][45][46][47][48][49][50][51][52][53][54], and there is a serious debate on the depositional environment of these Paleoproterozoic supracrustal sequences. Du et al [55] suggested that the Hutuo Group formed in a continental environment and pointed out that the geochemistry of Hutuo basalts are different from that of island-arc basalt but similar to that of continental rift basalt [55,56].…”

Section: Discussionmentioning

confidence: 99%

Formation age and tectonic environment of the Gantaohe Group, North China Craton: Geology, geochemistry, SHRIMP zircon geochronology and Hf-Nd isotopic systematics

et al. 2012

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The Gantaohe Group is an important early Precambrian unit in the Trans-North China Orogen, North China Craton, and is mainly composed of greenschist-facies metabasalt, meta-sandstone and dolomitic marble. We report whole-rock geochemical compositions and SHRIMP zircon ages as well as LA-ICP-MS Hf-in-zircon isotopeic analyses for metabasalts from the Gantaohe Group. SHRIMP dating yielded a weighted mean 207 Pb/ 206 Pb age of 2087±16 Ma (MSWD=1.3) for magmatic zircons, but there are also abundant ca. 2.5 Ga inherited zircon xenocrysts. The magmatic zircons shows a large  Hf (t) variation in  Hf (t) from 7.17 to +0.45, suggesting an isotopically highly heterogeneous source for the metabasalt. Chemically all samples show no distinct Zr or Hf anomalies, and some samples show no Nd or Ta anomalies in a primitive mantle-normalized trace element variation diagram, and their whole-rock  Nd (t) values range from 4.0 to 0.8. We suggest that the basalt is formed by partial melting of a depleted mantle source, followed by significant crustal contamination. Field observations, the presence of abundant inherited zircon, as well as isotope and trace elements geochemistry support formation of the Gantaohe Group on top of a continental basement. These data and the regional geology lead us to conclude that the Trans-North China Orogen constituted an intracontinental rift during the Paleoproterozoic that was connected to the Eastern Block since the end of the Archean.

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U-Pb and Hf isotopic study of detrital zircons from the Hutuo group in the Trans-North China Orogen and tectonic implications

Cited by 147 publications

References 79 publications

SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance

SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance

Genesis of the Hengling magmatic belt in the North China Craton: Implications for Paleoproterozoic tectonics

Formation age and tectonic environment of the Gantaohe Group, North China Craton: Geology, geochemistry, SHRIMP zircon geochronology and Hf-Nd isotopic systematics

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