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
Alteration Mineralogy of the Zhengguang Epithermal Au-Zn Deposit, Northeast China: Interpretation of Shortwave Infrared Analyses During Mineral Exploration and Assessment

文献类型：期刊论文

作者Wang, Le1,2,4,5; Percival, Jeanne B.3; Hedenquist, Jeffrey W.4; Hattori, Keiko4; Qin, Kezhang1,2,5
刊名ECONOMIC GEOLOGY
出版日期2021-03-01
卷号116期号:2页码:389-406
ISSN号0361-0128
DOI10.5382/econgeo.4792
英文摘要Alteration mineralogy from shortwave infrared (SWIR) spectroscopy was compared with X-ray diffraction (XRD) analyses for samples from the Zhengguang intermediate sulfidation epithermal Au-Zn deposit, eastern Central Asian orogenic belt, northeast China. The SWIR and XRD analyses indicate that alteration minerals in the vein-adjacent halo mainly comprise quartz, illite, and locally pyrite (QIP) and chlorite, whereas samples from the pervasive propylitic alteration of host basaltic andesite lava contain epidote, chlorite, carbonate, montmorillonite, and locally illite. SWIR mineral identifications from automated mineral identification software may not always be accurate; thus, the results should be validated by the user. The wavelength position of the Al-OH (similar to 2,200 nm; wAlOH) absorption feature can be used to approximate the composition of illite or white mica. However, caution is required when using the wAlOH value to assess paleotemperatures, as the composition of illite can be influenced by the composition of the host rocks or the hydrothermal fluid. In addition, values of the illite spectral maturity (ISM; ratio of the depth of the similar to 2,200 nm minima divided by the similar to 1,900 nm minima) can be affected by the presence of other hydrous minerals, quartz-sulfide veins, and absorption intensity (which can be a function of rock coloration). Despite these cautions, the spatial distribution and variation of the wAlOH and ISM values for illite suggest that the high paleotemperature hydrothermal upflow zones related to the Zhengguang Au-Zn deposit were located below ore zones I and IV, which are predicted to be proximal to the intrusive center of the system.
WOS关键词PORPHYRY COPPER-DEPOSIT ; DAM IOCG DEPOSIT ; HYDROTHERMAL ALTERATION ; REFLECTANCE SPECTROSCOPY ; HEILONGJIANG PROVINCE ; ALTERATION ZONES ; SPECTRAL CHARACTERISTICS ; SWIR CHARACTERISTICS ; FLUID INCLUSION ; GOLD DEPOSIT
资助项目National Key R&D Program of China[2017YFC0601305] ; Natural Sciences and Engineering Research Council of Canada ; UCAS Joint PhD Training Program ; University of Ottawa
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000627123300005
出版者SOC ECONOMIC GEOLOGISTS, INC
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; University of Ottawa ; University of Ottawa ; University of Ottawa ; University of Ottawa ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; University of Ottawa ; University of Ottawa ; University of Ottawa ; University of Ottawa ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; University of Ottawa ; University of Ottawa ; University of Ottawa ; University of Ottawa ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; University of Ottawa ; University of Ottawa ; University of Ottawa ; University of Ottawa
源URL[http://ir.iggcas.ac.cn/handle/132A11/101037]  
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Wang, Le
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
3.Geol Survey Canada, Nat Resources Canada, Ottawa, ON K1A 0E8, Canada
4.Univ Ottawa, Dept Earth & Environm Sci, Ottawa, ON K1N 6N5, Canada
5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Le,Percival, Jeanne B.,Hedenquist, Jeffrey W.,et al. Alteration Mineralogy of the Zhengguang Epithermal Au-Zn Deposit, Northeast China: Interpretation of Shortwave Infrared Analyses During Mineral Exploration and Assessment[J]. ECONOMIC GEOLOGY,2021,116(2):389-406.
APA Wang, Le,Percival, Jeanne B.,Hedenquist, Jeffrey W.,Hattori, Keiko,&Qin, Kezhang.(2021).Alteration Mineralogy of the Zhengguang Epithermal Au-Zn Deposit, Northeast China: Interpretation of Shortwave Infrared Analyses During Mineral Exploration and Assessment.ECONOMIC GEOLOGY,116(2),389-406.
MLA Wang, Le,et al."Alteration Mineralogy of the Zhengguang Epithermal Au-Zn Deposit, Northeast China: Interpretation of Shortwave Infrared Analyses During Mineral Exploration and Assessment".ECONOMIC GEOLOGY 116.2(2021):389-406.

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。