帮助 关于我们

返回检索结果

云南中甸红牛-红山大型夕卡岩铜矿床石榴子石U-Pb年代学、元素地球化学及地质意义
The U-Pb chronology,element geochemistry and geological significance of garnets from the Hongniu-Hongshan large skarn copper deposit,Zhongdian,Yunnan,China

查看参考文献74篇

毛金伟 1,2   冷成彪 1,2 *   赵严 1,2   李凯旋 1,2   陈涛亮 1,2   梁丰 1,2   高粉粉 1,2   张兴春 3  
文摘 为厘定云南中甸红牛-红山大型夕卡岩铜矿床赋存矿体的夕卡岩的形成年龄,对矿区产出的石榴子石开展了U-Pb定年,并结合石榴子石的元素地球化学特征探讨矿床成因。结果显示,矿区不同矿段(红牛、红山)均发育早(Grt Ⅰ)、晚(Grt Ⅱ)两个世代的石榴子石,其成分均为钙铝-钙铁榴石固溶体(红牛为And_(27.02~ 62.53)Gro_(36.74~ 71.64),红山为And_(42.51~ 99.94)Gro_(0.00~ 56.37))。不同矿段、不同世代石榴子石的稀土元素配分模式特征迥异,表现为左倾型、负Eu异常和右倾型、正Eu异常两种配分模式;两个矿段石榴子石的稀土总含量相差较大(红牛为5.29×10~(-6) ~ 102×10~(-6),红山为19.8×10~(-6) ~ 206×10~(-6))。研究表明,石榴子石的稀土配分模式主要受钙铝榴石-钙铁榴石端元组分控制;更高的稀土元素含量可能与富氯流体的加入及流体运移距离较短有关。红牛-红山矿床石榴子石U-Pb年龄为(79.7±3.4)Ma,代表了夕卡岩化的形成年龄,指示该矿床形成于晚白垩世。
其他语种文摘 In order to determine the formation age of skarn in the Hongniu-Hongshan large skarn copper deposit in the Zhongdian area,Yunnan Province,the U-Pb dating of garnets from the deposit has been carried out and the genesis of the deposit has been discussed in combination with the elemental geochemical significances of the garnets.The results show that two generations of garnets [the early one (GrtⅠ) and the late one (GrtⅡ)]were developed in different oreblocks(the Hongniu and Hongshan oreblocks) in the deposit,with their components of the grossularite-andradite solid solution(And_(27.02-62.53)Gro_(36.74-71.64) at Hongniu,And_(42.51-99.94)Gro_(0.00-56.37) at Hongshan).The distribution patterns of rare earth elements in various generations of garnets from different oreblocks are quite different,manifested as two types of distribution patterns including the left-declined pattern with negative Eu anomaly and right-declined one with positive Eu anomaly;There are significant differences among the total REE contents of garnets from two oreblocks (5.29×10~(-6) ~ 102× 10~(-6) at Hongniu,19.8×10~(-6) ~ 206×10~(-6) at Hongshan).The results show that the REE distribution patterns of garnets were mainly controlled by the end components of the grossularite-andradite;The relatively high contents of REE may be related to the addition of chlorine-rich fluids and the relatively short distance of fluid migration.The U-Pb age of the garnet from the Hongniu-Hongshan deposit is (79.7±3.4) Ma,representing the age of skarnization and indicating that the deposit was formed in the Late Cretaceous period.
来源 矿物岩石地球化学通报 ,2023,42(6):1329-1343 【核心库】
DOI 10.19658/j.issn.1007-2802.2023.42.058
关键词 石榴子石 ; 原位元素组成 ; U-Pb定年 ; 夕卡岩铜矿床 ; 红牛-红山矿床 ; 云南中甸
地址

1. 东华理工大学, 核资源与环境国家重点实验室, 南昌, 330013  

2. 东华理工大学地球科学学院, 南昌, 330013  

3. 中国科学院地球化学研究所, 矿床地球化学国家重点实验室, 贵阳, 550081

语种 中文
文献类型 研究性论文
ISSN 1007-2802
学科 地质学
基金 国家自然科学基金资助项目 ;  第二次青藏高原综合科学考察研究项目
文献收藏号 CSCD:7610816

参考文献 共 74 共4页

1.  Baghban S. Chemical composition and evolution of the garnets in the Astamal Fe-LREE distal skarn deposit,Qara-Dagh-Sabalan metallogenic belt,Lesser Caucasus,NW Iran. Ore Geology Reviews,2016,78:166-175 CSCD被引 9    
2.  Bau M. Rare-earth element mobility during hydrothermal and metamorphic fluid-rock interaction and the significance of the oxidation state of europium. Chemical Geology,1991,93(3/4):219-230 CSCD被引 253    
3.  Chen X L. Geochemical compositions of apatites from the Xuejiping and Disuga porphyries in Zhongdian arc: Implications for porphyry Cu mineralization. Ore Geology Reviews,2021,130:103954 CSCD被引 8    
4.  Deng X D. Dating magmatic and hydrothermal processes using andradite-rich garnet U-Pb geochronometry. Contributions to Mineralogy and Petrology,2017,172(9):71 CSCD被引 49    
5.  Duan X X. Garnet Geochemistry of Reduced Skarn System: Implications for Fluid Evolution and Skarn Formation of the Zhuxiling W (Mo) Deposit,China. Minerals,2020,10(11):1024 CSCD被引 3    
6.  Fan X J. Garnet composition as an indicator of skarn formation: LA-ICP-MS and EPMA studies on oscillatory zoned garnets from the Haobugao skarn deposit,Inner Mongolia,China. Geological Journal,2019,54(4):1976-1992 CSCD被引 5    
7.  Gaspar M. REE in skarn systems: A LA-ICP-MS study of garnets from the Crown Jewel gold deposit. Geochimica et Cosmochimica Acta,2008,72(1):185-205 CSCD被引 108    
8.  Jamtveit B. Zonation patterns of skarn garnets: Records of hydrothermal system evolution. Geology,1993,21(2):113-116 CSCD被引 72    
9.  Kravchuk I F. REE fractionation in acid fluid-magma systems. Geochemistry International,1995,32(11):60-68 CSCD被引 3    
10.  Leng C B. Zircon U-Pb and molybdenite Re-Os geochronology and Sr-Nd-Pb-Hf isotopic constraints on the genesis of the Xuejiping porphyry copper deposit in Zhongdian,Northwest Yunnan,China. Journal of Asian Earth Sciences,2012,60:31-48 CSCD被引 41    
11.  Meinert L D. Skarns and skarn deposits. Geoscience Canada,1992,19(4):145-162 CSCD被引 111    
12.  McIntire W L. Trace element partition coefficients-a review of theory and applications to geology. Geochimica Et Cosmochimica Acta,1963,27(12):1209-1264 CSCD被引 34    
13.  Mezger K. U-Pb systematics of garnet: Dating the growth of garnet in the late Archean Pikwitonei granulite domain at Cauchon and Natawahunan Lakes,Manitoba,Canada. Contributions to Mineralogy and Petrology,1989,101(2):136-148 CSCD被引 30    
14.  Park C. Oscillatory zoning in skarn garnet: Implications for tungsten ore exploration. Ore Geology Reviews,2017,89:1006-1018 CSCD被引 13    
15.  Paton C. Iolite: Freeware for the visualisation and processing of mass spectrometric data. Journal of Analytical Atomic Spectrometry,2011,26(12):2508-2518 CSCD被引 123    
16.  Peng H J. Geochronology of the Hongniu-Hongshan porphyry and skarn Cu deposit,northwestern Yunnan province,China: Implications for mineralization of the Zhongdian arc. Journal of Asian Earth Sciences,2014,79:682-695 CSCD被引 10    
17.  Peng H J. Garnets in porphyry-skarn systems: A LA-ICP-MS,fluid inclusion, and stable isotope study of garnets from the Hongniu-Hongshan copper deposit,Zhongdian area,NW Yunnan Province,China. Journal of Asian Earth Sciences,2015,103:229-251 CSCD被引 8    
18.  Reed M J. The distribution of rare earth elements between monzogranitic melt and the aqueous volatile phase in experimental investigations at 800℃and 200 MPa. Contributions to Mineralogy and Petrology,2000,140(2):251-262 CSCD被引 11    
19.  Smith M P. The rare earth elements and uranium in garnets from the beinn an dubhaich Aureole,Skye,Scotland,UK: Constraints on processes in a dynamic hydrothermal system. Journal of Petrology,2004,45(3):457-484 CSCD被引 75    
20.  Sun S S. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes. Geological Society,London,Special Publications,42 (1),1989:313-345 CSCD被引 57    
引证文献 1

1 李星 大兴安岭北部塔源铅锌铜矿床成矿机制研究 矿物岩石地球化学通报,2024,43(4):775-786
CSCD被引 0 次

显示所有1篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号