کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4693302 1636856 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Provenance record of a foreland basin: Detrital zircon U–Pb ages from Devonian strata in the North Qilian Orogenic Belt, China
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Provenance record of a foreland basin: Detrital zircon U–Pb ages from Devonian strata in the North Qilian Orogenic Belt, China
چکیده انگلیسی

Devonian strata in the North Qilian Belt of the Qilian Orogen accumulated in a foreland basin formed through collision between the North China Craton and the Central Qilian Belt. U–Pb age data for 393 detrital zircons from four sandstone samples from the Lower to Middle Devonian Laojunshan Formation and Upper Devonian Shaliushui Formation range in age from 3.6 Ga to 0.4 Ga and indicate input from a multi-component source. Detrital zircons older than the early Mesoproterozoic (1.4 Ga) were likely derived from the North China Craton, whereas late Mesoproterozoic to Neoproterozoic zircons were derived from the Central Qilian Belt. Early Paleozoic zircons were derived from the North Qilian continental arc and associated ophiolites. The occurrence of Neoproterozoic zircons indicates that their source, the Central Qilian Belt, was likely once part of the Yangtze Block of the South China Craton prior to its separation from the craton in the late Neoproterozoic.

Research Highlights
► Zircon ages from Devonian strata in the North Qilian Orogen constrain their sources.
► Source of Neoproterozoic zircons constrain the origin of Central Qilian Belt.
► Detrital zircon ages record the collisional suturing within the Qilian Orogen.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tectonophysics - Volume 495, Issues 3–4, 3 December 2010, Pages 337–347
نویسندگان
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