Zircon U–Pb geochronology and Hf isotope data from the Yangtze River sands: Implications for major magmatic events and crustal evolution in Central China

Detrital zircon U–Pb geochronology, Hf isotopes and geochemistry constraints on crustal growth and Mesozoic tectonics of southeastern China

“…300-200 Ma (Fig. 5F) are consistent with previous results from modern Yangtze River deposits (Safonova et al, 2010;He et al, 2013).…”

“…3), suggesting short transportation from sources. The wide range of their eHf(T) values (mostly between À12.5 and +1.8) is consistent with the previously reported results He et al, 2013), indicating that the magmatic rocks of Early Paleozoic age were mainly derived from crust sources with mixing of metapelitic, metaigneous and depleted mantle components, though magmatic rocks of this age sourced from a depleted mantle are yet to be reported (e.g., Yao et al, 2012).…”

Erosion patterns in the Changjiang (Yangtze River) catchment revealed by bulk-sample versus single-mineral provenance budgets

“…Diverse methods have been applied to quantify denudation rates, including landscape morphometry, heavy-mineral analyses, bulk-sediment geochemistry, isotope fingerprints of detrital K-feldspar, cosmogenic isotopic tracers, and detrital-zircon geochronology (Chappell et al, 2006;Jie et al, 2007;Yang et al, 2009Yang et al, , 2012Jia et al, 2010b;He et al, 2013aHe et al, , 2014Zhang et al, 2014). Erosion patterns inferred from these different approaches, however, diverge widely.…”

Late Miocene provenance change on the eastern margin of the Yinggehai-Song Hong Basin, South China Sea: Evidence from U–Pb dating and Hf isotope analyses of detrital zircons

“…The two grains have older Hf mode ages than their UePb ages, suggesting some degree of reworking of existing crust in the magmatic episode (He et al, 2013). The Mesoproterozoic felsic volcanic rocks in the western Hainan Island were dated at 1460e1430 Ma, which was considered to be related to the Grenvillian orogeny in Asia (Xu et al, 2007;Li et al, 2008).…”