Journal of Jilin University(Earth Science Edition) ›› 2020, Vol. 50 ›› Issue (6): 1685-1702.doi: 10.13278/j.cnki.jjuese.20190026

Previous Articles    

Zircon U-Pb Age and Hf Isotope Characteristics of Caledonian Pinghe Composite Granite Pluton: Its Mineralization of Granite Weathering Crust Type REE Deposit

Ming Tianxue1,2, Yang Qingbiao1,2, Li Rong1,2, Tang Zhong1,2,3, Xue Ge1, Luo Jianhong1, Yu Haijun1,2, Li Yongping1   

  1. 1. Institute of Yunnan Geology Survey, Kunming 650051, China;
    2. Key Laboratory of Sanjiang Metallogeny and Resources Exploration and Utilization, Ministry of Natural Resources, Kunming 650051, China;
    3. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2019-06-08 Published:2020-12-11
  • Supported by:
    Supported by Project of China Geological Survey (DD20190379,DD20179604-07)

PDF (PC)

345

Abstract: The Caledonian Pinghe composite granite pluton is located on the western edge of Baoshan block in western Yunnan, which consists mainly of monzonitic granite and porphyritic monzonitic granite. The major elements show that the total alkali (w(K2O+Na2O)) values are 6.89% and 7.44%, the K2O/Na2O values are 1.59 and 2.65, A/CNK values are 1.58 and 1.76, and the Rittmann indexes (σ) are 1.65 and 1.73; the trace and REE elements show that these rocks are rich in large-ion lithophile elements (Rb、Th) and depleted of high field-strength elements (Ta、Nb), enriched light rare-earth elements with LREE/HREE value of 1.40 and 6.43, and low-middle Eu anomalies (δEu=0.16 and 0.75). The zircon U-Pb ages of 478-476 Ma indicate that this pluton was emplaced during the Early Ordovician. 38 analyses from the two samples provide a wide range of zircon εHf(t) values, and the corresponding Hf-isotope crustal model ages are 2.2-1.7 Ga. The geochemical characteristics show that Pinghe composite granite pluton is calc-alkaline and per-aluminous S-type granite formed in a stress relaxation stage after the tectonic collision of pan-african movement, and closely related to the process of extrusion, collision, and dissociation during the period of original Tethys geological event in western Yunnan. In Datuanshan, ferromanganese cerium oxide, a rare earth mineral, is found in Caledonian Pinghe composite granite pluton for the first time, which contributes the most to REO in the entirely weathered rock mass. The REO is generally not high, ranging from 279.05×10-6 to 791.77×10-6, overall enrichment of Y, La, Ce elements, and partial enrichment of Nd. The heavy rare earth dysprosium oxide accounts for a high proportion in all of the fully weathered rock mass, were 2.30% to 4.62%. The discovery of Datuanshan rare earth mine shows that the Caledonian granite also has a potential for the granite weathering crust type REE deposit in western Yunnan.

Key words: zircon U-Pb age, Hf isotope, weathering crust type REE deposit, metallogenic characteristics, Caledonian, Pinghe composite granite pluton, western Yunnan

CLC Number: 

  • P597
[1] 李发兴,黎绍杰,谭杰,等. 广西容县浪水离子吸附型稀土矿床地质特征及找矿标志[J].矿产与地质,2015,29(5):640-643. Li Faxing, Li Shaojie,Tan Jie, et al. Geological Mineral Characteristics and Prospecting Indicator of Langshui REE Deposit of Ion-Adsorption Type in Rongxian,Guangxi[J]. Mineral Resources and Geology, 2015, 29(5):640-643.
[2] 汪明,彭振安,梁玲慧,等. 广西滴水花岗岩地球化学特征与离子吸附型稀土矿床[J].矿产勘查,2013,4(3):273-282. Wang Ming, Peng Zhen'an, Liang Linghui, et al. Geochemical Characteristics and Ion-Adsorption Type Rare Earth Deposit of Dishui Granite in Guangxi[J]. Mineral Exploration, 2013, 4(3):273-282.
[3] 罗云平,龚洪波,田犁平,等. 澜沧县富东花岗岩风化壳稀土矿特征[J].云南地质,2016,35(2):235-238. Luo Yunping, Gong Hongbo, Tian Liping, et al. The REE Deposit Feature of Fudong Granite Weathering Crust in Lancang[J]. Yunnan Geology, 2016, 35(2):235-238.
[4] 何显川,李杨,张民. 云南上允花岗岩风化壳离子吸附型稀土矿成矿条件浅析[J].世界有色金属,2016(3):117-120,122. He Xianchuan, Li Yang, Zhang Min. Analysis on the Metallogenic Conditions of the Ion Adsorption Type Rare Earth Deposit on the Shangyun and the Granite Weathering Crust in Yunnan[J]. World Nonferrous Metal, 2016(3):117-120,122.
[5] 吴继炜,王颖,黄长帅,等. 广西岑溪市波塘地区稀土矿特征及成矿条件分析[J].矿产与地质,2014,28(6):679-684,698. Wu Jiwei, Wang Ying, Huang Changshuai, et al. Characteristics and Metallogenic Conditions of REE Deposits in Botang Area of Cenxi,Guangxi[J]. Mineral Resources and Geology, 2014, 28(6):679-684,698.
[6] 李平初. 广西六陈岩体与离子吸附型稀土矿成矿及成因[J].四川有色金属,2014(1):23-27. Li Pingchu.The Study on Mineralization and Origin of Rock Mmass and Ion-Absorbed Rare Earth Ore in Liuchen Guangxi[J]. Sichuan Nonferrous Metals, 2014(1):23-27.
[7] 卢见昆,廖航,黄长帅,等. 广西新联稀土矿区莲塘花岗岩的地质地球化学特征及成矿意义[J].矿产与地质,2014,28(5):605-610,647. Lu Jiankun, Liao Hang, Huang Changshuai, et al. Geological and Geochemical Characteristics of Liantang Granite in Xinlian Rare Earth Mining Area of Guangxi and Its Significance in Metallogenic Research[J]. Mineral Resources and Geology, 2014, 28(5):605-610,647.
[8] 钟大赉.川滇西部古特提斯造山带[M].北京:科学出版社,1998:1-231. Zhong Dalai. The Ancient Tethys Orogenic Zone in Western Yunnan and Sichuan[M].Beijing:Science Press, 1988:1-231.
[9] 罗君烈.滇西特提斯造山带的演化及基本特征[J].云南地质,1990,9(4):247-290. Luo Junlie.Evolution and Basic Characteristics of Tethys Orogenic Zone,Western Yunnan[J]. Yunnan Geology, 1990, 9(4):247-290.
[10] 闫全人,王宗起,刘树文,等. 青藏高原东缘构造演化的SHRIMP锆石U-Pb年代学框架[J].地质学报,2006,80(9):1285-1294. Yan Quanren, Wang Zongqi, Liu Shuwen, et al. Eastern Margin of the Tibetan Plateau:A Window to Probe the Complex Geological History from the Proterozoic to the Cenozoic Revealed by SHRIMP Analyses[J]. Acta Geologica Sinica, 2006, 80(9):1285-1294.
[11] 杨启军,徐义刚.滇西怒江-高黎贡构造带内花岗岩的侵位过程及其对特提斯演化过程的响应[J].吉林大学学报(地球科学版),2011,41(5):1353-1361. Yang Qijun, Xu Yigang. The Emplacement of Granites in Nujiang-Gaoligong Belt,Western Yunnan, and Response to the Evolvement of Neo-Tethys[J]. Journal of Jilin University(Earth Science Edition), 2011, 41(5):1353-1361.
[12] 丛峰,林仕良,谢韬,等.滇西腾冲-梁河地区花岗岩锆石稀土元素组成和U-Pb同位素年龄[J].吉林大学学报(地球科学版),2010,40(3):573-580. Cong Feng, Lin Shiliang, Xie Tao, et al. Rare Earth Element Geochemistry and U-Pb Age of Zircons from Granites in Tengchong-Lianghe Area, Western Yunnan[J]. Journal of Jilin University(Earth Science Edition), 2010, 40(3):573-580.
[13] 丛峰,林仕良,唐红峰,等.滇西梁河三叠纪花岗岩的锆石微量元素、U-Pb和Hf同位素组成[J].地质学报,2010,84(8):1155-1164. Cong Feng, Lin Shiliang, Tang Hongfeng, et al. Trace Elements and Hf Isotope Compositions and U-Pb Age of Igneous Zircons from the Triassic Granite in Lianghe,Western Yunnan[J]. Acta Geologica Sinica, 2010, 84(8):1155-1164.
[14] 董方浏,侯增谦,高永丰,等.滇西腾冲新生代花岗岩:成因类型与构造意义[J].岩石学报,2006,22(4):927-937. Dong Fangliu, Hou Zengqian, Gao Yongfeng, et al. Cenozoic Granitoid in Tengchong,Western Yunnan:Genesis Type and Implication for Tectonics[J].Acta Petrologica Sinica, 2006, 22(4):927-937.
[15] 董美玲,董国臣,莫宣学,等.滇西保山地块中-新生代岩浆作用及其构造意义[J].岩石学报,2013,29(11):3901-3913. Dong Meiling, Dong Guochen, Mo Xuanxue, et al. The Mesozoic-Cenozoic Magmatism in Baoshan Block, Western Yunnan and Its Tectonic Significance[J]. Acta Petrologica Sinica, 2013, 29(11):3901-3913.
[16] 董美玲,董国臣,莫宣学,等.滇西保山地块早古生代花岗岩类的年代学、地球化学及意义[J].岩石学报,2012,28(5):1453-1464. Dong Meiling, Dong Guochen, Mo Xuanxue, et al. Geochronology and Geochemistry of the Early Palaeozoic Granitoids in Baoshan Block,Western Yunnan and Their Implications[J]. Acta Petrologica Sinica, 2012, 28(5):1453-1464.
[17] 董美玲.滇西保山地块早古生代花岗岩类的地球化学、年代学及其构造意义[D].北京:中国地质大学(北京),2013. Dong Meiling. Geochemistry and Geochronology of the Early Palaeozoic Granitoids in Baoshan Block,Western Yunnan and Their Implications[D]. Beijing:China University of Geosciences(Beijing), 2013.
[18] 董美玲.滇西腾冲-保山地块岩浆作用研究及其构造意义[D].北京:中国地质大学(北京),2016. Dong Meiling.Study of Magmatism in Tengchong-Baoshan Block, Western Yunnan and Its Tectonic Implications[D]. Beijing:China University of Geosciences(Beijing), 2016.
[19] Liu S, Hu R Z, Gao S, et al. U-Pb Zircon,Geochemical and Sr-Nd-Hf Isotopic Constraints on the Age and Origin of Early Palaeozoic I-Type Granite from the Tengchong-Baoshan Block,Western Yunnan Province, SW China[J]. Journal of Asian Earth Sciences, 2009, 36:168-182.
[20] Chen F K, Li X H, Wang X L, et al. Zircon Age and Nd-Hf Isotopic Composition of the Yunnan Tethyan Belt,Southwestern China[J]. International Journal of Earth Sciences, 2007, 96:1179-1194.
[21] Soderlund U, Patchett P J, Vervoort J D, et al. The 176Lu Decay Constant Determined by Lu-Hf and U-Pb Isotope Systematics of Precambrian Mafic Intrusions[J]. Earth and Planetary Science Letters, 2004, 219:311-324.
[22] Griffin W L, Pearson N J, Belousova E, et al. The Hf Isotope Composition of Cratonic Mantle:LAM-MC-ICPMS Analysis of Zircon Megacrysts in Kimberlites[J]. Geochimica et Cosmochimica Acta, 2000, 64:133-147.
[23] 吴福元,李献华,郑永飞,等.Lu-Hf同位素体系及其岩石学应用[J].岩石学报,2007,23(2):185-220. Wu Fuyuan, Li Xianhua, Zheng Yongfei, et al. Lu-Hf Isotopic Systematics and Their Applications in Petrology[J]. Acta Petrologica Sinica, 2007, 23(2):185-220.
[24] Amelin Y, Lee D C, Halliday A N. Early-Middle Archaean Crustal Evolution Deduced from Lu-Hf and U-Pb Isotopic Studies of Single Zircon Grains[J]. Geochimica et Cosmochimica Acta, 2000, 64:4205-4225.
[25] Vervoort J D, Pachelt P J, Gehrels G E, et al. Constraints on Early Earth Differentiation from Hafnium and Neodymium Isotopes[J]. Nature, 1996, 379:624-627.
[26] 吕伯西,王增,张能德,等.三江地区花岗岩类及其成矿专属性[M].北京:地质出版社,1993:1-328. Lü Boxi, Wang Zeng, Zhang Nengde, et al. Granite and Its Metallogenic Characteristics in Sanjiang Area[M]. Beijing:Geological Publishing House,1993:1-328.
[27] 杨学明,张培善. 花岗岩中稀土元素的赋存状态及质量平衡研究[J].稀土,1992,13(5):6-11. Yang Xueming, Zhang Peishan. Study on the Occurrence and Quality Balance of Rare Earth Elements in Granite[J]. Chinese Rare Earths, 1992, 13(5):6-11.
[28] 张恋,吴开兴,陈陵康,等. 赣南离子吸附型稀土矿床成矿特征概述[J].中国稀土学报,2015,33(1):10-17. Zhang Lian, Wu Kaixing, Chen Lingkang, et al. Overview of Metallogenic Features of Ion-Adsorption Type REE Deposits in Southern Jiangxi Province[J]. Journal of the Chinese Society of Rare Earths, 2015, 33(1):10-17.
[29] 赵芝,王登红,陈振宇,等. 南岭东段与稀土矿有关岩浆岩的成矿专属性特征[J].大地构造与成矿学,2014,38(2):255-263. Zhao Zhi, Wang Denghong, Chen Zhenyu, et al. Metallogenic Specialization of Rare Earth Mineralized Igneous Rocks in the Eastern Nanling Region[J]. Geotectonica et Metallogenia, 2014, 38(2):255-263.
[1] Zhao Yayun, Liu Xiaofeng, Liu Yuanchao, Ci Qiong, Zheng Changyun, Yang Chunsi, Li Li, Fu Hailong. Petrogenesis and Metallogenic Implication of Ore-Bearing Rock Mass of Copper Polymetallic Ore Occurrence in Duorenze-Sangaka Area, Angren County, Tibet [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(5): 1323-1339.
[2] He Genwen, Lu Siming, Peng Linlin, Yu Changqi, Li Wei, Liu Cuihui. Geochemistry, Geochronology and Genesis of Granites in Shihuoshan Pyrite Polymetallic Ore Area, South Jiangxi Province [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(5): 1491-1504.
[3] Fan Feipeng, Xiao Huiliang, Chen Lezhu, Li Haili, Liu Jianxiong, Deng Zhonglin, Kang Congxuan, Lin Gengwei, Chen Kai. Zircon U-Pb Age and Hf Isotope of Multiple-Stage Magmatism and Mineralization in Lianhuashan Region, Eastern Guangdong [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(5): 1462-1490.
[4] Chen Huijun, Yu Hongbin, Ma Yongfei, Chen Jingsheng, Qian Cheng, Liu Shiwei, Cui Tianri, Zhong Hui. Zircon U-Pb Age, Petrological Geochemistry and Tectonic Implication of Alkaline Granitein South-Eastern Jilin Province [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(2): 531-541.
[5] Long Tianxiang, He Xiaohu, Liu Fei, Li Zongyong, Wang Yuchao, Zhao Jun, Li Yunfei, Wang Changbing, Cao Yuan. Zircon U-Pb Geochronology, Trace Element, Hf Isotope of Alkaline Rocks from Chang'an Gold Deposit and Its Geological Implication [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(6): 1607-1627.
[6] Li Guangyao, Li Zhidan, Wang Jiaying, Wen Sibo. Zircons LA-ICP-MS Chronology, Geochemical Signatures and Geological Significance of Gaoyaohai BIF-Type Iron Deposit in Guyang Greenstone Belt, Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(5): 1317-1326.
[7] Yang Xiaopeng, Wang Changbing, Li Wenqing. Petrogenesis and Tectonic Setting of Moyite in Suotuhan Area, Northern Great Xing'an Range [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(5): 1338-1349.
[8] Jia Yinggang, Zhao Jun, Jiang Lei, Guan Liwei, Wang Xiaoxuan, He Liang. Early Paleozoic Tectonic Evolution of Northern Yili Block: Evidence from Diorite in Wenquan, Xinjiang [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(4): 1015-1038.
[9] Wang Wanqiong, Liu Zhenghong, Xu Zhongyuan, Bai Xinhui. Zircon SHRIMP Dating and Its Geological Significance of Dongwufenzi Formation of Sertengshan Group in Urad Zhongqi, Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(4): 1053-1062.
[10] Lu Qian, Sun Jinggui, An Jiuhai, Han Jilong, Chu Xiaolei. Petrogenesis and Forming Environment of Mesozoic Porphyritic Granite in Songjianghe Region of Dunhua,Jilin Province: Evidences from Element Geochemistry,Hf Isotope and U-Pb [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(3): 673-689.
[11] Yin Zhengxin, Wang Haifeng, Han Jinsheng, Lü Xiuya, Shen Zezhong, Chen Jing, He Huizhong, Xie Anyuan, Guan Yao, Dong Chao. Comparison Between the Marginal-Sea Polymetallic Nodules in South China Sea and Ocean Polymetallic Nodules [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(1): 261-277.
[12] Lü Junchao, Shu Guanglong, Zhang Debao, Zhao Yan, Liu Guixiang, Bi Zhongwei. Geochronology and Metallogenic Epoch of Shenshan Fe-Cu Deposit in Zhalaite County, Inner Mongolia and Its Geological Significance [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(6): 1683-1695.
[13] Zhang Peng, Kou Linlin, Zhao Yan, Bi Zhongwei. Zircon U-Pb Age and Hf Isotopic Composition of the Biotite Plagioclase Hornblende Gneiss of Shujigou Cu-Zn Deposit, Liaoning Province [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(5): 1365-1377.
[14] Zhao Xilin, Jiang Yang, Xing Guangfu, Yu Shengyao, Peng Yinbiao, Huang Wencheng, Wang Cunzhi, Jin Guodong. Chencai Early Paleozoic Subduction-Accretionary and Their Restrictions on Collage Between Cathaysia and Yangtze Block [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(4): 1135-1153.
[15] Zhang Qiang, Ding Qingfeng, Song Kai, Cheng Long. Detrital Zircon U-Pb Geochronology and Hf Isotope of Phyllite of Langyashan Formation in Hongshuihe Iron Ore District of Eastern Kunlun and Their Geological Significance [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(4): 1085-1104.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd