The early Paleozoic Wuyi–Yunkai orogeny in South China: a collisional orogeny with a major lag in time between onset of collision and peak metamorphism in subducted continental crust
Abstract:Collisional orogeny is characterized by deep subduction of continental crust and major crustal thickening, leading to high-pressure/high-temperature metamorphism and anataxis of the subducted continental crust. Since conductive heating of large slabs of cold, subducted continental crust is a slow process, heating up to a temperature that is high enough to generate significant partial melting can take tens of millions of years. Where the spatial and temporal relationships are obscured due to later modification … Show more
“…These features suggest a turbidite origin in a proximal slope-basin environment. These sediments were sourced from eastern Gondwana, but the source area(s) and the tectonic pro-cesses responsible for the sediment accumulation are contentious (Yao and Li, 2016;Wang et al, 2023;Xue et al, 2023;Lin et al, 2023).…”
<p>Analytical methods and data, sample location map, field photographs and thin section photomicrographs, cathodoluminescence and backscatter electron images, and Concordia and kernel density estimation plots. </p>
“…These features suggest a turbidite origin in a proximal slope-basin environment. These sediments were sourced from eastern Gondwana, but the source area(s) and the tectonic pro-cesses responsible for the sediment accumulation are contentious (Yao and Li, 2016;Wang et al, 2023;Xue et al, 2023;Lin et al, 2023).…”
<p>Analytical methods and data, sample location map, field photographs and thin section photomicrographs, cathodoluminescence and backscatter electron images, and Concordia and kernel density estimation plots. </p>
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