Geochronological constraints on the formation and evolution of the Huangling basement in the Yangtze craton, South China

New evidence from heavy minerals and detrital zircons in Quaternary fluvial sediments for the evolution of the upper Yangtze River, South China

“…2), which underwent multistage magmatic (3000–2900 Ma, 2700–2600 Ma, and 1870–1850 Ma) and metamorphic events (2600–2500 Ma and 2050–1900 Ma). The Archean rock yielded abundant titanites, garnets and zircons with type 2 morphology (Zhao et al, 2006a; Wei et al, 2020). Thus, the Archean, Paleoproterozoic, and Paleo-Mesoproterozoic zircon populations from the Yunmeng planation surface can only be derived from rock group Ⅰ.…”

Mesoarchean banded iron-formation from the northern Yangtze Craton, South China and its geological and paleoenvironmental implications

“…The South China Block is one of the largest cratonic blocks in East Asia and is generally divided into the Yangtze Craton in the northwest and the Cathaysia Block in the southeast, separated by the intervening Jiangnan orogenic belt ( (Li et al, 2003;Zhao and Guo, 2012;Zhao and Cawood, 2012;Charvet, 2013;Zhai, 2013;Cawood et al, 2018);Figure 1a). Located to west of the Qinghai Tibet Plateau and south of the Qinling Dabie Sulu orogenic belt, the Yangtze Craton is composed mainly of late Paleoproterozoic and Neoproterozoic rocks with sporadic outcrops of Archean rocks (Zhao and Cawood, 2012;Zhang and Zheng, 2013;Ji et al, 2014;Jiang et al, 2016;Han et al, 2017;Wei et al, 2020). The Huangling dome, located in the northern part of the Yangtze Craton, is the only area where both Archean and Paleoproterozoic metamorphic rocks are exposed in the region (Gao et al, 1999;Qiu et al, 2000;Zheng et al, 2006;Gao et al, 2011;Chen et al, 2013;Han et al, 2018).…”

“…The NKT is considered metamorphosed to amphibolite facies (Jiang, 1986;Ling et al, 2001;Wei and Jing, 2013;Wei et al, 2020) and to be compose mainly of the Mesoarchean 2.9-3.0 Ga Dongchonghe tonalitic-trondhjemitic-granodioritic (TTG) gneiss, granitic gneiss, and locally preserved amphibolites. The protolith of most of the amphibolites is considered to be 3.2-3.0 Ga ultramafic-mafic rocks-the oldest known lithologies in the Huangling basement, the maintain constituent of the Huangling greenstone belt, HGB (Xiong et al, 2004;Wei et al, 2019;Wei et al, 2020;Wei, 2021). Based on chronological and petrological evidence, the Yemadong Complex is considered a relic of the HGB, named for its location near the Yemadong village (Figure 1c) (Wei et al, 2019;Zhou et al, 2019;Wei et al, 2020;Wei, 2021).…”

“…The protolith of most of the amphibolites is considered to be 3.2-3.0 Ga ultramafic-mafic rocks-the oldest known lithologies in the Huangling basement, the maintain constituent of the Huangling greenstone belt, HGB (Xiong et al, 2004;Wei et al, 2019;Wei et al, 2020;Wei, 2021). Based on chronological and petrological evidence, the Yemadong Complex is considered a relic of the HGB, named for its location near the Yemadong village (Figure 1c) (Wei et al, 2019;Zhou et al, 2019;Wei et al, 2020;Wei, 2021). Therefore, the lithological association of the Yemadong Complex inherits the HGB (Zhou et al, 2019).…”

Detrital Zircon U-Pb-Hf Isotopes of Middle Neoproterozoic Sedimentary Rocks in the Altyn Tagh Orogen, Southeastern Tarim: Insights for a Tarim-South China-North India Connection in the Periphery of Rodinia

“…2.6-2.7 Ga in the northern and western Yangtze craton probably reflects the importance of ca. 2.6-2.7 Ga crystalline basement in the Yangtze craton [69,70], which is relatively rare in the Tarim craton. Moreover, a ca.…”