祁漫塔格成矿带磁铁矿Fe<sup>2+</sup>/Fe<sup>3+</sup>比值测定方法对比研究

易立文; 鲁安怀; 谷湘平; 池国祥; 曹丽

doi:10.12090/j.issn.1006-6616.2019.25.S1.001

祁漫塔格成矿带磁铁矿Fe²⁺/Fe³⁺比值测定方法对比研究

doi: 10.12090/j.issn.1006-6616.2019.25.S1.001

易立文^{1, 2,},
鲁安怀²,
谷湘平²,
池国祥³,
曹丽¹

1.
湖南师范大学资源与环境科学学院, 湖南长沙 410081
2.
中南大学地球科学与信息物理学院, 湖南长沙 410083
3.
里贾纳大学地质系, 加拿大里贾纳S4S 0A2

基金项目:

国家重点研发计划项目 2016YFC0502406

详细信息

作者简介:
易立文(1988-), 男, 讲师, 硕士生导师, 主要从事成因矿物学与矿床地球化学研究。E-mail:yiliwen1988@163.com

中图分类号: P618.31
计量
- 文章访问数: 258
- HTML全文浏览量: 96
- PDF下载量: 13
- 被引次数: 0
出版历程
- 刊出日期: 2019-05-01

EVALUATION OF THE METHODS FOR QUANTITATIVE DETERMINATION OF FE²⁺/FE³⁺ RATIOS OF MAGNETITE FROM QIMANTAG METALLOGENIC BELTS

1.
College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, China
2.
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
3.
Department of Geology, University of Regina, Regina, Saskatchewan S4S 0A2, Canada

摘要

摘要: 为了厘清磁铁矿成分测试过程中Fe²⁺/Fe³⁺比值分析各种方法的准确性及适用范围；采用直接测氧法、Lβ/Lα强度比值法、电价差值法、剩余氧法和穆斯堡尔谱法，对祁漫塔格成矿带中典型矿床中磁铁矿的Fe²⁺/Fe³⁺比值进行了研究，结果表明电价差值法、剩余氧法和穆斯堡尔谱法是相对比较准确的测试方法，但穆斯堡尔谱法不是原位分析方法，存在适用范围的缺陷。
- 电子探针 /
- 直接测氧 /
- 铁价态 /
- 祁漫塔格
Abstract: Through the determination of Fe²⁺/Fe³⁺ ratios of magnetite from the Qimantag metallogenic belt, the quality of five different methods is evaluated. Oxygen as a super light element, affects the determination results of FeO and Fe₂O₃ observably when direct oxygen measurement method is used. The valence state method, based on Lα and Lβ spectral intensity ratio of Fe, is also unreliable for FeO and Fe₂O₃ measurements, because it is hard to establish the relationship between Lβ/ Lα (spectral intensity ratio) and Fe²⁺/Fe³⁺(content ratio). Relatively, the charge difference method, the surplus-oxygen method and Mssbauer spectroscopy are still the most favorable methods; however, Mssbauer spectroscopy is limited in spatial resolution to ca. 200 mm, obliterating potential zonations in Fe²⁺/ Fe³⁺ ratio.
- electron probe microanalysis /
- Direct measurement of oxygen /
- Valence of iron /
- Qimantag metallogenic belt

HTML全文

图 1 Fe²⁺/Fe³⁺ 比值图

Figure 1. Fe²⁺/Fe³⁺ ratios diagram

下载: 全尺寸图片幻灯片

参考文献(13)

[1]	陈光远, 邵伟, 孙岱生.胶东金矿成因矿物学与找矿[M].重庆:重庆出版社, 1989. CHEN Guangyuan, SHAO Wei, SUN Daisheng. Genesis mineralogy and prospecting mineralogy in Jiaodong gold mine[M]. Chongqing: Chongqing Press, 1989. (in Chinese)
[2]	陈光远, 孙岱生, 殷辉安.成因矿物学与找矿矿物学[M].重庆:重庆出版社, 1987: 1-874 CHEN Guangyuan, SUN Daisheng, YIN Huian. Genesis mineralogy and prospecting mineralogy[M]. Chongqing: Chongqing Press, 1987: 1-874. (in Chinese)
[3]	周剑雄, 毛水和, 陈克樵.电子探针分析[M].北京:地质出版社, 1988. ZHOU Jianxiong, MAO Shuihe, CHEN Keqiao. Electron probe analysis[M]. Beijing: Beijing Press, 1988. (in Chinese)
[4]	陈克樵, 欧阳菲.电子探针定量分析直接测定含铁矿物中二价和三价铁[J].岩矿测试, 1992, 11(4): 306-310. http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS199204002.htm CHEN Keiqiao, OUYANG Fei. Determination of Iron(Ⅱ) and Iron (Ⅲ) in iron-bearing minerals by electron probe analysis[J]. Rock and Mineral Analysis, 1992, 11(4): 306-310 (in Chinese with English abstract). http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS199204002.htm
[5]	合志阳一.电子线分光法的状态分析[M]. 1981. HE Z Y Y. State analysis of electron beam spectrometry[M]. 1981 (in Japanese).
[6]	PERRY E C, TAN F C, MOREY G B. Geology and stable isotope geochemistry of the biwabik iron formation, northern Minnesota[J]. Economic Geology, 1973, 68(7): 110-1125. DOI: 10.2113/gsecongeo.68.7.1110.
[7]	HEMINGWAY B S. Thermodynamic properties for bunsenite, NiO, magnetite, Fe₃O₄, and hematite, Fe₂O₃, with comments on selected oxygen buffer reactions[J]. American Mineralogist, 1990, 75(7): 781-790.
[8]	BARLEY M E, PICKARD A L. An extensive, crustally-derived, 3325 to 3310 Ma silicic volcanoplutonic suite in the eastern Pilbara Craton: evidence from the Kelly Belt, McPhee dome and Corunna downs batholith[J]. Precambrian Research, 1999, 96(1-2): 41-62. DOI: 10.1016/S0301-9268(99)00003-0.
[9]	MARSCHIK R. The Candelaria-Punta del cobre iron oxide Ci-Au(-Zn-Ag) Deposits, Chile[J]. Economic Geology, 2001, 96(8): 1799-1826. DOI: 10.2113/96.8.1799.
[10]	CORNELL S E, JICKELLS T D, CAPE J N, et al. Organic nitrogen deposition on land and coastal environments: a review of methods and data[J]. Atmospheric Environment, 2003, 37(16): 2173-2191. DOI: 10.1016/S1352-2310(03)00133-X.
[11]	DE HALLER A, FONTBOTE L. The raul-condestable iron oxide copper-gold deposit, central coast of Peru: ore and related hydrothermal alteration, sulfur isotopes, and thermodynamic constraints[J]. Economic Geology, 2009, 104(3): 365-384. DOI: 10.2113/gsecongeo.104.3.365.
[12]	OHMOTO H. Nonredox transformations of magnetite-hematite in hydrothermal systems[J]. Economic Geology, 2003, 98(1): 157-161. DOI: 10.2113/gsecongeo.98.1.157.
[13]	OTAKE H, EGAMI S, OHTA H, et al. GaN-based trench gate metal oxide semiconductoe field effect transistor with over 100 cm²/(V s) channel mobility[J]. Japanese Journal of Applied Physics, 2007, 46(25): L599-L601. DOI: 10.1143/JJAP.46.1599.