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：9
作者：
Reznitskii, L. Z. [1 ]
Kovach, V. P. [2 ]
Barash, I. G. [1 ]
Plotkina, Yu. V. [2 ]
Wang, K. -L. [3 ]
Chiu, H. -Y. [4 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Earths Crust, Ul Lermontova 128, Irkutsk 664033, Russia
[2] Russian Acad Sci, Inst Precambrian Geol, Nab Makarova 2, St Petersburg 199034, Russia
[3] Acad Sinica, Inst Earth Sci, Taipei, Taiwan
[4] Natl Taiwan Univ, Taipei, Taiwan
来源：
STRATIGRAPHY AND GEOLOGICAL CORRELATION | 2018年 / 26卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
Dzhida terrane; detrital zircons; U-Pb age; EARLY CALEDONIAN SUPERTERRANE; PALEOASIAN OCEAN FORMATION; TUVA-MONGOLIAN MASSIF; ISLAND-ARC SYSTEM; ASIAN FOLD BELT; SOUTHWESTERN TRANSBAIKALIA; CONTINENTAL-CRUST; BACK-ARC; DZABKHAN MICROCONTINENT; CRYSTALLINE COMPLEX;
D O I：
10.1134/S0869593818050052
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
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.
引用
收藏
页码：489 / 513
页数：25
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