气候变化领域集成服务门户(CCPortal): Sandstone provenance analysis in Longyan supports the existence of a Late Paleozoic continental arc in South China

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DOI	10.1016/j.tecto.2020.228400
	Sandstone provenance analysis in Longyan supports the existence of a Late Paleozoic continental arc in South China
	Li C.; Hu X.; Wang J.; Vermeesch P.; Garzanti E.
发表日期	2020
ISSN	00401951
卷号	780
英文摘要	Because of the limited magmatic and metamorphic record, the Late Paleozoic tectonic setting in South China remains controversial. This paper presents sedimentologic data and provenance analysis of Upper Paleozoic sandstones in Longyan, which are rich in quartz (73–90%) and poor in lithic fragments (2–12%) and feldspar (3–25%). Devonian sandstones contain mostly metamorphic lithic fragments (e.g., quartzite), whereas Carboniferous-Permian sandstones contain mostly felsic volcanic and subvolcanic lithic fragments indicating provenance from felsic volcanic rocks. Detrital zircon U-Pb age spectra of Devonian-Carboniferous sandstones display modes at ~440 Ma and 420–380 Ma, with subordinate Mesoproterozoic age components, pointing at the Nanling terrane and the western-middle part of the Wuyi terrane as most likely ultimate sediment sources. Permian sandstones inherited the age components mentioned above, but also include peaks at ~290 Ma and ~1850 Ma. The ~290 Ma component corresponds to the age of Late Paleozoic magmatism in southeastern China and southwest Japan. Numerous detrital zircons aged at 350–250 Ma also occur in Permo-Triassic strata exposed across South China and southwest Japan. Based on regional data and on the ages and Hf isotope signatures of detrital zircon, we infer that a Late Paleozoic continental arc existed in the coastal area of southeastern China and contributed detritus to the adjacent sedimentary basins. The Permo-Triassic igneous rocks locally exposed in the area may represent the remnant of that continental arc. Arc growth may have been responsible for the westward retreat of a broad Upper Paleozoic carbonate platform. © 2020 Elsevier B.V.
关键词	Carbonate platform Continental arc Late Paleozoic Sedimentary provenance South China Tectonic setting
英文关键词	Binary alloys; Feldspar; Lead alloys; Sandstone; Sedimentology; Tectonics; Uranium alloys; Volcanic rocks; Volcanoes; Zircon; Carbonate platforms; Continental arc; Late Paleozoic; Sedimentary provenance; South China; Tectonic settings; Metamorphic rocks; carbonate platform; continental arc; feldspar; lithic fragment; metamorphism; Paleozoic; plate tectonics; provenance; quartz; sandstone; sedimentary petrology; sedimentology; tectonic setting; uranium-lead dating; China; Fujian; Longyan
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207806
作者单位	State Key Laboratory of Mineral Deposit Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Institute of Sedimentary Geology, Chengdu, 610059, China; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; London Geochronology Centre, University College London, London, WC1E 6BT, United Kingdom; Department of Earth and Environmental Sciences, Università di Milano-Bicocca, Milano, 20126, Italy
推荐引用方式 GB/T 7714	Li C.,Hu X.,Wang J.,et al. Sandstone provenance analysis in Longyan supports the existence of a Late Paleozoic continental arc in South China[J],2020,780.
APA	Li C.,Hu X.,Wang J.,Vermeesch P.,&Garzanti E..(2020).Sandstone provenance analysis in Longyan supports the existence of a Late Paleozoic continental arc in South China.Tectonophysics,780.
MLA	Li C.,et al."Sandstone provenance analysis in Longyan supports the existence of a Late Paleozoic continental arc in South China".Tectonophysics 780(2020).