SHRIMP U–Pb zircon dating of the Neoproterozoic Penglai Group and Archean gneisses from the Jiaobei Terrane, North China, and their tectonic implications

Provenance of Early Paleozoic metasediments in the central Chinese Altai: Implications for tectonic affinity of the Altai-Mongolia terrane in the Central Asian Orogenic Belt

“…In the North China Craton, the age spectrum is dominated by zircons formed at 1.7-2.7 Ga with major age peaks at 2.47 and 1.87 Ga (Darby and Gehrels, 2006;Zhou et al, 2008;Wan et al, 2011;Liu et al, 2012bLiu et al, , 2013, of which the~1.9 Ga zircons record the assembly of the west and east blocks (Zhao et al, 2004;Zhai and Santosh, 2011). The oldest zircons with an age peak at 3.4 Ga were probably derived from the oldest basement rocks of the North China Craton.…”

“…Comparing relative probability plots for detrital zircons from the Paleozoic metasediments in the Chinese Altai and detrital zircons from several other blocks. Original data are from the references: the Chinese Altai ; and data in this study), the North China Craton (Darby and Gehrels, 2006;Zhou et al, 2008;Wan et al, 2011;Liu et al, 2012bLiu et al, , 2013, the Siberia Craton (Khudoley et al, 2001;Wang et al, 2011;Gladkochub et al, 2013), the Tarim Craton Zhang et al, 2011Zhang et al, , 2012Zhu et al, 2011;Wang et al, 2013), the Yilgarn Craton (Cawood et al, 2003;Veevers et al, 2005;Pidgeon and Nemchin, 2006), the Gawler Craton (Swain et al, 2005;Belousova et al, 2009), the East Antarctica Block (Bisnath et al, 2006;Clark et al, 2012;Grew et al, 2012;Marschall et al, 2013), the northern India Block (Decelles et al, 2004;Gehrels et al, 2006;Kaur et al, 2011;McKenzie et al, 2011;Ravikant et al, 2011), and the South China Block (Wan et al, 2007;Wang et al, 2007Wang et al, , 2010bXu et al, 2007;Sun et al, 2009;Yu et al, 2010;Li et al, 2011). materials for the Early Paleozoic metasediments in the Chinese Altai. Therefore, we suggest that the Tarim Craton is most likely the main source of old detritus of the Early Paleozoic metasedimentary rocks in the Chinese Altai, which therefore suggests that the whole AltaiMongolia terrane has a close tectonic affinity to the Tarim Craton.…”

Hf–Nd–O isotopic evidence for melting of recycled sediments beneath the Sulu Orogen, North China

“…1a) juxtaposes mainly Late Archean to Early Proterozoic high-grade metamorphic rocks of the NCC and the Mesozoic Laiyang Basin, to the north and west, against the Neoproterozoic low-grade metamorphic complexes and interleaved Triassic HP-UHP rocks, to the south. Based on zircon U-Pb-Hf isotope data, Zhou et al (2008aZhou et al ( ,b,c, 2012 identified the metamorphic rocks of both NCC and Yangtze affinity at the northern margin of the Sulu Orogen, with the Haizhou and Wulian metamorphic complexes to be of Yangtze affinity, whereas the Penglai, Fenzishan and Jingshan metamorphic complexes were of NCC affinity. They further considered that the surface boundary between the Yangtze Block and NCC was located along the Baichihe-Yantai fault (Zhou et al, 2012).…”

“…In the Sulu Orogen and its adjacent regions, exposed Archean to Proterozoic metamorphic complexes, e.g., such as those occurring at Haizhou, Wulian, Penglai, Fenzishan and Jingshan (Zhou et al, 2008a(Zhou et al, ,b, c, 2012 could provide a source of crustal components. Recycling of these crustal materials into the mantle would require lithospheric delamination.…”

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

“…The 1.8-1.9 Ga zircons have also been found in the Paleoproterozoic Yejishan, Hutuo, Zhongtiao, Gantaohe and Songshan Groups in the Trans-North China Orogen (Liu et al, 2011a(Liu et al, , 2011b(Liu et al, , 2012c In the Daqingshan area in the Western Block of the North China Craton, the Precambrian Khondalite Belt recorded the ~1.9 Ga ages, which represent the metamorphic events of the North China Craton (Wan et al, 2009;Zhao et al, 2010). In the Eastern Block of the North China Craton, a large amount of 1.8-1.9 Ga zircons have been revealed in the Paleoproterozoic Jiao-Liao-Ji Belt (Li et al, 2004Luo et al, 2004Luo et al, , 2008Li and Zhao, 2007;Zhou et al, 2008;Tam et al, 2011Tam et al, , 2012aTam et al, , 2012bTam et al, , 2012c. After 1.7 Ga, the Precambrian basements of the North China Craton had been stabilized until the Ordovician (Gao et al, 2002), which led to the lack of 500~1700 Ma detrital zircons in the Laoha River.…”