Episodic crustal growth in the southern segment of the Trans-North China Orogen across the Archean-Proterozoic boundary

Lateral variation in oxygen fugacity and halogen contents in early Cretaceous magmas in Jiaodong area, East China: Implication for triggers of the destruction of the North China Craton

“…The major elements of studied samples are comparable with the literature data of the gabbro-diorite from the same locality Meng et al, 2005;Tang et al, 2009) (Fig. 4) (Griffin et al, 2000); the fields of Mesozoic intrusions in western Shandong Province (Tongshi, Yinan and Jinan-Zouping areas) are after Huang et al (2012a); the field of the TTG in the southern North China Craton (SNCC) is compiled from the data in Huang et al (2010Huang et al ( , 2012bHuang et al ( , 2013). …”

Geochronology and geochemistry of the late Paleoproterozoic aluminous A-type granite in the Xiaoqinling area along the southern margin of the North China Craton: Petrogenesis and tectonic implications

“…1b), and consists mainly of the Neoarchean to early Paleoproterozoic basement rocks and the overlying late Paleoproterozoic to Phanerozoic cover sequences (e.g., Sun et al, 1981;Zhang et al, 1985;Guan et al, 1988;Li et al, 1995;Wan et al, 2006a,b). The crystalline basement comprises the Neoarchean to early Paleoproterozoic TTG and Paleoproterozoic metamorphosed supracrustal rocks of the Taihua Group (e.g., Sun et al, 1981;Zhang et al, 1985;Guan et al, 1988;Wan et al, 2006a,b;Liu et al, 2009;Xu et al, 2009;Diwu et al, 2010Diwu et al, , 2013Diwu et al, , 2014Huang et al, 2010Huang et al, , 2012Huang et al, , 2013Shi et al, 2011), which is unconformably overlain by the Paleoproterozoic Tietonggou Formation. The Tietonggou Formation, limited with a thickness of 315-2850 m (e.g., Diwu et al, 2013), consists predominantly of quartzites whose protolith depositional ages were constrained at 1.91-1.80 Ga (e.g., Diwu et al, 2013Diwu et al, , 2014.…”

Age and geochemistry of the early Mesoproterozoic A-type granites in the southern margin of the North China Craton: Constraints on their petrogenesis and tectonic implications

“…It shares the similar basement and cover sequences to those in other areas of the NCC, including the Archean to early Paleoproterozoic basement rocks and the overlying late Paleoproterozoic to Phanerozoic cover sequences (e.g., Zhang et al, 1985Zhang et al, , 1994Guan et al, 1988;Tu, 1998;Wan et al, 2006;Liu et al, 2009;Diwu et al, 2014;Hu et al, 2014). The oldest basement rocks in this area consist mainly of the Neoarchean-Paleoproterozoic Taihua Complex (2.84-1.97 Ga), which is also defined as Taihua Group composed of a suite of metamorphic rocks including graphitebearing gneisses, greenstones, biotite gneisses, marbles and banded iron formations (e.g., Zhang et al, 1985Zhang et al, , 1994Guan et al, 1988;Tu, 1998;Wan et al, 2006;Diwu et al, 2007Diwu et al, , 2010Diwu et al, , 2013Diwu et al, , 2014Liu et al, 2009;Xu et al, 2009;Huang et al, 2010Huang et al, , 2012Huang et al, , 2013. It is locally unconformably overlain by the Paleoproterozoic Tietonggou Formation in the Xiaoqinling area, which is the boundary region between Shaanxi and Henan provinces.…”

“…5), which were both derived from the crust origin (e.g., Wang et al, 2013;Deng et al, 2015). In this respect, an origin of magma mixing can also be precluded because such isotopic signatures of the Zhangjiaping granites would require one more enriched source material with lower e Hf (t) values than the Taihua Complex rocks (À11.23 to 9.48, e.g., Liu et al, 2009;Huang et al, 2010Huang et al, , 2012Huang et al, , 2013Xu et al, 2009;Shi et al, 2011;Diwu et al, 2007Diwu et al, , 2010Diwu et al, , 2014 to mix with a depleted mantle-derived magma. No such a source region has been revealed in the study area at present.…”