Age and Provenance Areas of Terrigenous Rocks of the Dzhida Terrane: Results of U—Th—Pb (LA-ICP-MS) Geochronological Study of Detrital Zircons

被引：0
|
作者：
L. Z. Reznitskii
V. P. Kovach
I. G. Barash
Yu. V. Plotkina
K. -L. Wang
H. -Y. Chiu
机构：
[1] Russian Academy of Sciences,Institute of the Earth’s Crust, Siberian Branch
[2] Russian Academy of Sciences,Institute of Precambrian Geology
[3] Academia Sinica,Institute of Earth Sciences
[4] National Taiwan University,undefined
来源：
Stratigraphy and Geological Correlation | 2018年 / 26卷
关键词：
Dzhida terrane; detrital zircons; U—Pb age;
D O I：
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学科分类号：
摘要：
The results of U—Th—Pb (LA-ICP-MS) geochronological studies of detrital zircons from terrigenous rocks of the Dzhida terrane of the Central Asian Fold Belt (CAFB) are presented. The data obtained allow us to distinguish the following age maxima (Ma): 578 and 634 (Vendian); 720, 823, and 919 (Late Riphean); 1922, 2090, 2225, and 2321 (Early Proterozoic). A number of zircons have Late Archean age in the interval of 2670–2980 Ma. Taking into account Late Cambrian age (504–506 Ma) of intrusive rocks that intruded the Dzhida terrane, a possible sedimentation period of sequences of this terrane is estimated to be in the interval of 580–510 Ma (from Vendian to Late Cambrian). The possible provenance areas of terrigenous sediments are proposed and the previously proposed models of geodynamic evolution of the Dzhida terrane are correlated with new geochronological data.
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页码：489 / 513
页数：24
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