Zircon U-Pb age and metamorphic age of biotite monzogneiss from the Jitang Group, eastern Tibet

ZHANG Liwen; LUOLA Ciwang; FAN Bingliang; BUGa Ciren; ZHOU Xin; FENG Dexin; GUO Weikang

doi:10.12097/j.issn.1671-2552.2022.11.003

2022 Vol. 41, No. 11

Article Contents

Article navigation > Geological Bulletin of China > 2022 > 41(11): 1927-1941

Next Article Previous Article

ZHANG Liwen, LUOLA Ciwang, FAN Bingliang, BUGa Ciren, ZHOU Xin, FENG Dexin, GUO Weikang. Zircon U-Pb age and metamorphic age of biotite monzogneiss from the Jitang Group, eastern Tibet[J]. Geological Bulletin of China, 2022, 41(11): 1927-1941. doi: 10.12097/j.issn.1671-2552.2022.11.003

Citation:

ZHANG Liwen, LUOLA Ciwang, FAN Bingliang, BUGa Ciren, ZHOU Xin, FENG Dexin, GUO Weikang. Zircon U-Pb age and metamorphic age of biotite monzogneiss from the Jitang Group, eastern Tibet[J]. Geological Bulletin of China, 2022, 41(11): 1927-1941. doi: 10.12097/j.issn.1671-2552.2022.11.003

Zircon U-Pb age and metamorphic age of biotite monzogneiss from the Jitang Group, eastern Tibet

1.
Geothermal Geological Survey Party, Tibet Bureau of Geology and Mineral Exploration and Development, Lhasa 850000, Tibet, China
2.
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
3.
Chengdu Institute of Geology and Mineral Resources, Chengdu 610081, Sichuan, China

More Information

Corresponding author: LUOLA Ciwang, 373705243@qq.com

Received Date: 21 January 2022

Revised Date: 03 November 2022

Publish Date: 15 November 2022

Abstract

Abstract

The attribution of the metamorphic basement age of the Jitang Group in eastern Tibet has been controversial. Here we report the results of detrital zircon U-Pb dating for the Duoqionggou biotite monzogneiss in the Jitang Group from the Jitang area, Chaya County, eastern Tibet, and compared with the northwest Jitang Group in the Leiwuqi area. LA-ICP-MS zircon U-Pb dating results indicate that the maximum depositional time of biotite monzogneiss in the Jitang Group is no earlier than 566±9.5 Ma and is of the Late Neoproterozoic. The protolith of biotite monzogneiss is paragneiss, and the detrital materials are probably derived from the Archean to Neoproterozoic granitic rocks and felsic volcanic rocks. By comparison, the Jitang Group in the Jitang area is similar to the Jitang Group in the Leiwuqi area in material composition. The orthogneiss unit of the latter belongs to a product of magmatism of the Variscan-Indosinian period, and instead of being part of the crystalline basement of the Jitang Group.Combined with existing data, we propose that the protoliths of the Jitang Group underwent five periods of tectono-thermal events after diagenesis, with peak metamorphic ages of ca. 427 Ma, ca. 377~359 Ma, ca. 308~273 Ma, ca. 255~252 Ma, and ca. 226~203 Ma, respectively, of which the magmatic activity at ca. 226~203 Ma may have resulted in the remelting of the Jitang Group.
- Jitang Group /
- depositional age /
- detrital zircon /
- biotite monzogneiss /
- metamorphorical age /
- geological survey engineering /
- Tibet

FullText(HTML)

References

[1]	王根厚. 藏东他念他翁山链变质杂岩系变形特征及表露机制[D]. 中国地质大学(北京)博士学位论文, 2006. Google Scholar
[2]	李璞. 西藏东部地质的初步认识[J]. 科学通报, 1955, (7): 62-65. Google Scholar
[3]	李璞, 王大纯, 曾鼎乾, 等. 西藏东部地质及矿产调查资料[M]. 北京: 科学出版社, 1959. Google Scholar
[4]	周云生, 张旗, 梅厚均, 等. 西藏岩浆活动与变质作用[M]. 北京: 科学出版社, 1981. Google Scholar
[5]	地质矿产部三江委员会. 1∶100万怒江、澜沧江、金沙江区域地质图[M]. 北京: 地质出版社, 1986. Google Scholar
[6]	艾长兴, 陈炳蔚. 对西藏东部嘉玉桥群及吉塘群时代问题的讨论[J]. 西藏地质, 1986, (2): 13-16. Google Scholar
[7]	雍永源, 向天秀, 王洁民. 初论北澜沧江变质岩[J]. 青藏高原地质文集, 1990, (0): 67-89. Google Scholar
[8]	李才, 谢尧武, 董永胜, 等. 北澜沧江带的性质——是冈瓦纳板块与扬子板块的界线吗?[J]. 地质通报, 2009, 28(12): 1711-1719. doi: 10.3969/j.issn.1671-2552.2009.12.004 CrossRef Google Scholar
[9]	沙绍礼, 谢尧武, 彭道平, 等. 略谈藏东吉塘群[J]. 地质与勘探, 2012, 48(4): 768-774. Google Scholar
[10]	陶琰, 毕献武, 李金高, 等. 西藏吉塘花岗岩地球化学特征及成因[J]. 岩石学报, 2011, 27(9): 2763-2774. Google Scholar
[11]	Hu Z C, Gao S, Liu Y S, et al. Signal enhancement in laser ablation ICP-MS by addition of nitrogen in the central channel gas[J]. Journal of Analytical Atomic Spectrometry, 2008, 23(8): 1093-1101. Google Scholar
[12]	Hu Z C, Liu Y S, Gao S, et al. A "wire" signal smoothing device for laser ablation inductively coupled plasma mass spectrometry analysis[J]. Spectrochimica Acta Part b-atomic Spectroscopy, 2012, 78: 50-57. Google Scholar
[13]	Liu Y S, Hu Z C, Gao S, et al. In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J]. Chemical Geology, 2008, 257(1/2): 34-43. Google Scholar
[14]	Liu Y S, Gao S, Hu Z C, et al. Continental and oceanic crust recycling-induced melt-peridotite interactions in the Trans-North China Orogen: U-Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths[J]. Journal of Petrology, 2010, 51(1/2): 537-571. Google Scholar
[15]	Liu Y S, Hu Z C, Zong K Q, et al. Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS[J]. Chinese Science Bulletin, 2010, 55(15): 1535-1546. Google Scholar
[16]	Wiedenbeck M, Alle P, Corfu F, et al. 3 natural zircon standards for U-Th-Pb, Lu-Hf, trace-element and REE analyses[J]. Geostandards and Geoanalytical Research, 1995, 19(1): 1-23. Google Scholar
[17]	Ludwig K R. ISOPLOT3.00: A Geochronological Toolkit for Micrsoft Excel[M]. Berkeley: Berkerley Geochronoligy Center, California, 2003. Google Scholar
[18]	Hoskin P W O, Schaltegger U. The composition of zircon and igneous and metamorphic petrogenesis[J]. Reviews in Mineralogy and Geochemistry, 2003, 53: 27-62. Google Scholar
[19]	Harley S L, Kelly N M. Zircon-Tiny but timely[J]. Elements, 2007, 3(1): 13-18. Google Scholar
[20]	Hanchar J M, Westrenen W V. Rare earth element behavior in zirconmelt systems[J]. Elements, 2007, 3(1): 37-42. Google Scholar
[21]	陈奇, 王长明, 杜斌, 等. 藏东吉塘变质杂岩体锆石U-Pb年龄、地球化学特征及其地质意义[J]. 岩石学报, 2019, 35(5): 1423-1446. Google Scholar
[22]	樊炳良, 张鑫利, 于涛, 等. 藏东吉塘复式花岗岩成因——来自锆石U-Pb年龄和地球化学的证据[J]. 地质通报, 2019, 38(8): 1274-1286. Google Scholar
[23]	王保弟, 王立全, 强巴扎西, 等. 早三叠世北澜沧江结合带碰撞作用: 类乌齐花岗质片麻岩年代学、地球化学及Hf同位素证据[J]. 岩石学报, 2011, 27(9): 2752-2762. Google Scholar
[24]	王新雨. 北澜沧江带二叠—三叠纪花岗岩类对古特提斯洋俯冲、闭合过程的约束[D]. 中国地质大学(北京)博士学位论文, 2018. Google Scholar
[25]	周新, 冯德新, 樊炳良, 等. 藏东纽多石墨矿床地质特征及成因[J]. 现代矿业, 2019, 35(11): 57-60. Google Scholar
[26]	樊炳良, 白涛, 冯德新, 等. 藏东纽多黑云母二长花岗岩锆石U-Pb年龄及成因[J]. 地质通报, 2018, 37(7): 1226-1235. Google Scholar
①	四川省地质局区调队. 1∶100万昌都幅. 1973. Google Scholar
②	西藏地矿局第一地质大队. 西藏察雅县卡贡铁矿外围普查报告. 1977. Google Scholar
③	西藏地勘局地热地质大队. 1∶5万吉塘幅、益庆乡幅、亚雪村幅、察雅县幅区域地质调查报告. 2018. Google Scholar
④	西藏地质调查院. 1∶5万协通幅、类乌齐镇幅、瓦昌达幅、类乌齐县幅区域地质调查报告. 2010. Google Scholar
⑤	四川省地质矿产勘查开发局区域地质调查队. 1∶20万类乌齐幅、拉多幅、八宿幅、松宗幅区域地质调查报告. 1993. Google Scholar
⑥	河南省地勘局区域地质调查队. 1∶20万丁青幅区域地质调查报告. 1995. Google Scholar