Zircon SHRIMP age of Mesoarchaean meta-argilloarenaceous rock in the Anshan area and its geological significance

被引：3

作者：

Yusheng Wan

Biao Song

Dunyi Liu

机构：

[1] Chinese Academy of Geological Sciences,Institute of Geology

[2] Ministry of Land and Resources,Open Research Laboratory on Isotope Geology

来源：

Science in China Series B: Chemistry | 2002年 / 45卷

关键词：

SHRIMP; zircon; geochronology; REE composition of zircon; Archaean; argillo-arenaceous rock; Anshan;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to better understand the early continental evolution of the Anshan area, one of the typical Precambrian distribution areas of the North China Craton, the geochronology and REE composition of the zircons from the meta-argillo-arenaceous rock occurred as enclave in 3.1 Ga Lishan trondhjemite are studied by using SHRIMP II ion microprobe. It is indicated that the Paleoarchaean is a very important continental formation period in the Anshan area and 3.2 Ga can be regarded as the boundary between the Paleoarchaean and Mesoarchaean.

引用

页码：121 / 129

页数：8

共 36 条

[1] Rianbird R. H.(1998)U-Pb geochronology of Riphean sandstone and gabbro from southeast Siberia and its bearing on the Laurentia-Siberia connection Earth and Planetary Science Letters 164 409-420
[2] Stern R. A.(1999)Combined detrital-zircon fission-track and U-Pb dating: a new approach to understanding hinterland evolution Geology 27 235-238
[3] Khudoley A. K.(1999)Archean zircons in Cretaceous strata of the western Canadian Cordillera: the “Baja B.C.” hypothesis fails a “crucial test” Geology 27 195-198
[4] Carter A.(2002)Geochemical characteristics of supracrustal enclaves in Mesoarchaean Tiejiashan granite in Anshan area and its geological significance Chinese Journal of Geology (in Chinese) 37 143-151
[5] Moss S. J.(1999)Ba anomaly and its geochemical significance Continental Dynamics 4 84-87
[6] Mahoney J. B.(2000)Preliminary study on the isotopic age of metamorphism and anatexis of the Fuping Group of the environs of Xiaojue, Pingshan County, Hebei Province Acta Geologica Sinica (in Chinese) 74 30-38
[7] Mustard P. S.(1992)Remnants of ⩾3800 Ma crust in the Chinese part of the Sino-Korean Craton Geology 20 339-342
[8] Haggart J. W.(1996)3800 to 2500 Ma crust in the Anshan area of Liaoning Province, Northeastern China Precambrian. Research 78 79-94
[9] Wan Yusheng(1999)Geochemical and Nd and Sr isotopic compositions of 3.8 Ga trondhjemitic rocks from the Anshan area and their significance Acta Geologica Sinica (in Chinese) 73 23-36
[10] Geng Yuansheng(1997)Geochemistry and Nd, Pb isotopic characteristics of 3.3 Ga Chentaigou granite in Anshan area Acta Geoscientia Sinica (in Chinese) 18 382-388

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