Zircon U-Pb dating and the petrological and geochemical constraints on Lincang granite in Western Yunnan, China: Implications for the closure of the Paleo-Tethys Ocean

被引:130
作者
Dong, Guochen [1 ]
Mo, Xuanxue [1 ,2 ]
Zhao, Zhidan [1 ,2 ]
Zhu, Dicheng [1 ,2 ]
Goodman, Robbin C. [1 ]
Kong, Huilei [1 ]
Wang, Shuo [1 ]
机构
[1] China Univ Geosci, Beijing 100083, Peoples R China
[2] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
Lincang granite; Zircon U-Pb dating; Petrological and geochemical features; Paleo-Tethys; China; SOUTHERN LANCANGJIANG ZONE; IN-SITU ANALYSIS; HF ISOTOPE; VOLCANIC-ROCKS; GEOCHRONOLOGY; PETROGENESIS; PALEOTETHYS; MAGMATISM; COLLISION; STANDARD;
D O I
10.1016/j.jseaes.2012.10.003
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Lincang granite is a batholith located in the Sanjiang region and is an important research subject for understanding subduction and collision during the Paleo-Tethyan period. It is widely exposed in the Lincang Terrane and extends south into Burma. Based on various petrological and geochemical investigations performed from south to north across the Lincang granite, a new set of data, which includes zircon chronological and Hf isotopic data, is presented to discuss the origin of the Lincang granite and its tectonic significance. The Lincang granite is a peraluminous, high-K calc-alkaline body with sub-parallel REE patterns and a strong negative Eu anomaly. This anomaly is characteristic of a post-collision peraluminous S-type granitic batholith. The 200-230 Ma formation age of the Lincang granite was determined using LA-ICP-MS zircon U-Pb dating. Thus, it has been confirmed that the granite formed during the late Triassic period, and the formation process lasted for approximately 30 Ma. Geochemical and isotopic compositions indicate that the primary magma of Lincang granite most likely originated from a crustal source, and possibly underwent an assimilation-fractionation crystallization (AFC) process during its emplacement. The Lincang granite formed during the continental collision between the Baoshan-Gengma Terrane and the Lanping-Simao Terrane after the northeast subduction of the Paleo-Tethyan Oceanic Plate. Therefore, the late Triassic Lincang granite is important evidence for the closure of the Paleo-Tethyan Ocean. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:282 / 294
页数:13
相关论文
共 50 条
[41]   Petrogenesis of Tangjiaping granite porphyry in northern Dabie: Evidence from Zircon LA-ICPMS U-Pb dating and geochemical characteristics [J].
Wei QingGuo ;
Gao XinYu ;
Zhao TaiPing ;
Chen Wei ;
Yang YueHeng .
ACTA PETROLOGICA SINICA, 2010, 26 (05) :1550-1562
[42]   Zircon LA-ICPMS U-Pb dating and geochemical characteristics of Huangshaping granite in southeast Hunan province, China. [J].
Yao, JM ;
Hua, RM ;
Lin, JF .
ACTA PETROLOGICA SINICA, 2005, 21 (03) :688-696
[43]   Proto-Tethys ophiolitic melange in SW Yunnan: Constraints from zircon U-Pb geochronology and geochemistry [J].
Liu, Guichun ;
Sun, Zaibo ;
Zi, Jianwei ;
M Santosh ;
Zhao, Tianyu ;
Feng, Qinglai ;
Chen, Guangyan ;
Nie, Xiaomei ;
Li, Jing ;
Zhang, Shitao .
GEOSCIENCE FRONTIERS, 2021, 12 (05)
[44]   Geochemical and zircon U-Pb geochronological constraints on late mesozoic Paleo-Pacific subduction-related volcanism in southern Vietnam [J].
Nong, Anh T. Q. ;
Hauzenberger, Christoph A. ;
Gallhofer, Daniela ;
Skrzypek, Etienne ;
Dinh, Sang Q. .
MINERALOGY AND PETROLOGY, 2022, 116 (05) :349-368
[45]   TIME CONSTRAINTS ON THE CLOSURE OF THE PALEO-ASIAN OCEAN U-Pb DATING AND Hf ISOTOPIC EVIDENCE FROM THE UPPER PALEOZOIC DETRITAL ZIRCON IN THE NORTHEASTERN ORDOS BASIN [J].
Song, Jiaxuan ;
Gong, Hujun ;
Yao, Jingli ;
Zhao, Huitao ;
Zhao, Xiaohui ;
Zhang, Yunxiang ;
Chen, Biao .
FRESENIUS ENVIRONMENTAL BULLETIN, 2022, 31 (03) :2756-2766
[46]   Zircon U-Pb geochronology, Sr-Nd isotope analyses, and petrogenetic study of the Dehnow diorite and Kuhsangi granodiorite (Paleo-Tethys), NE Iran [J].
Karimpour, M. H. ;
Stern, C. R. ;
Farmer, G. L. .
JOURNAL OF ASIAN EARTH SCIENCES, 2010, 37 (04) :384-393
[47]   LA-ICP-MS Zircon U-Pb Geochronology and Petrology of the Muchang Alkali Granite, Zhenkang County, Western Yunnan Province, China [J].
Ye Lin ;
Gao Wei ;
Cheng Zengtao ;
Yang Yulong ;
Tao Yan .
ACTA GEOLOGICA SINICA-ENGLISH EDITION, 2010, 84 (06) :1488-1499
[48]   Timing of closure of the Jilin-Heilongjiang Ocean: constraints from zircon U-Pb and Ar-Ar dating of the Heilongjiang Complex in NE China [J].
Zhao, Liang-Liang ;
Zhou, Jian-Bo ;
Wang, Tao ;
Cui, Jian-Jun .
JOURNAL OF THE GEOLOGICAL SOCIETY, 2025, 182 (01)
[49]   Zircon U-Pb ages, Hf-O isotopes and whole-rock Sr-Nd-Pb isotopic geochemistry of granitoids in the Jinshajiang suture zone, SW China: Constraints on petrogenesis and tectonic evolution of the Paleo-Tethys Ocean [J].
Zhu, Jingling ;
Hu, Rui-Zhong ;
Bi, Xian-Wu ;
Zhong, Hong ;
Chen, Heng .
LITHOS, 2011, 126 (3-4) :248-264
[50]   U-Pb zircon and geochemical constraints on age and genesis of granitoids from the Jinchang Au deposit in Heilongjiang, NE China [J].
Han, S. J. ;
Yang, Y. C. ;
Ye, S. Q. ;
Khomich, V. G. ;
Boriskina, N. G. ;
Wang, X. Y. .
GEOLOGICAL JOURNAL, 2018, 53 (02) :600-616