中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院矿产资源研究重点实验室
Open Apatite Sr Isotopic System in Low-Temperature Hydrous Regimes

文献类型：期刊论文

作者Cao, Mingjian3,4; Evans, Noreen1; Qin, K. Z.2,3,4; Danisik, Martin1; Li, Guangming3,4; McInnes, Brent I. A.1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2019-11-25
页码12
关键词in situ apatite Sr-Nd isotopes LA-MC-ICPMS zircon (U-Th) He dating apatite metasomatic alteration low-temperature hydrous condition Baogutu porphyry Cu deposit
ISSN号2169-9313
DOI10.1029/2019JB018085
英文摘要Single crystal in situ Sr and Nd isotopic analysis of apatite permits more accurate interrogation of a variety of geoscience questions, including provenance, petrogenesis, and ore system evolution. However, the degree to which the apatite Sr and Nd isotopic systems remain closed under extended low-temperature hydrous conditions is not well constrained. Granitoids at the Baogutu deposit in NW China contain veins of low-temperature H2O-rich epistilbite and thus provide an excellent opportunity to evaluate isotopic system integrity under low-temperature hydrous conditions. Apatite from the Late Carboniferous diorite and granodiorite porphyry show variable (Sr-87/Sr-86)(i) ratios (0.7042 to 0.7062) but restricted epsilon Nd(t) values (+7.0 +/- 0.4 and +6.5 +/- 0.4, 1 sigma). The apatite Sr isotope signatures are transitional between whole rock (0.7035) and vein epistilbite (similar to 0.7062), indicating apparent incorporation of radiogenic Sr from the epistilbite-related hydrothermal fluid into the igneous apatite, whereas epsilon Nd values closely match those of the whole rock (+6.9 +/- 0.2 and +6.5 +/- 0.2, 1 sigma) and epistilbite (+6.2 +/- 0.2, 1 sigma). Obvious metasomatic textures of apatite were revealed by cathodoluminescence images. The 260 to 300 degrees C formation temperatures for earlier quartz-sulfide veins and chlorite alteration and homogenization temperature (similar to 190 degrees C) of fluid inclusions in epistilbite-calcite vein calcite constrain the temperature of the later epistilbite-related hydrothermal fluid to 190 to 260 degrees C. These results indicate that Sr and likely Nd isotopes in apatite are mobile under low-temperature (<300 degrees C) hydrous conditions and implies that Rb-Sr signatures in apatite from hydrothermally altered rocks reveal the presence and characteristics of modifying fluids.
WOS关键词PORPHYRY CU DEPOSIT ; RARE-EARTH-ELEMENTS ; I-TYPE GRANITOIDS ; WESTERN JUNGGAR ; TRACE-ELEMENT ; U-PB ; DISSOLUTION-REPRECIPITATION ; HYDROTHERMAL TRANSPORT ; CHINA CONSTRAINTS ; BAOGUTU
资助项目National Key Research and Development Plan[2017YFC0601306] ; National Natural Sciences Foundation of China[41672090] ; Youth Innovation Promotion Association CAS[2018086] ; Curtin Research Fellowship ; Australian Research Council (ARC)[DP160102427] ; AuScope NCRIS2 program
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000498359900001
出版者AMER GEOPHYSICAL UNION
资助机构National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Curtin Research Fellowship ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; Australian Research Council (ARC) ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program ; AuScope NCRIS2 program
源URL[http://ir.iggcas.ac.cn/handle/132A11/95795]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Cao, Mingjian
作者单位1.Curtin Univ, John de Laeter Ctr Earth & Planetary Sci, Perth, WA, Australia
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Mingjian,Evans, Noreen,Qin, K. Z.,et al. Open Apatite Sr Isotopic System in Low-Temperature Hydrous Regimes[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019:12.
APA Cao, Mingjian,Evans, Noreen,Qin, K. Z.,Danisik, Martin,Li, Guangming,&McInnes, Brent I. A..(2019).Open Apatite Sr Isotopic System in Low-Temperature Hydrous Regimes.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,12.
MLA Cao, Mingjian,et al."Open Apatite Sr Isotopic System in Low-Temperature Hydrous Regimes".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH (2019):12.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。