Fe Isotopic Compositions of Modern Seafloor Hydrothermal Systems and Their Influence Factors
Joint Authors
Li, Xiaohu
Wang, Jianqiang
Wang, Hao
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Based on previous research on the Fe isotope compositions of various components and systems of the Earth, this study focused on the Fe isotope compositions of hydrothermal systems, including the Fe isotope variations in chalcopyrite, pyrite, and sphalerite, and their possible controlling factors.
The main findings are as follows: (1) The range of Fe isotopes in hydrothermal systems at mid-ocean ridge is very large.
The δ56Fe values of hydrothermal fluids are characterized by significant enrichment in light Fe isotopes.
(2) The δ56Fe values of sulfides also exhibit lighter Fe isotope characteristics than those of hydrothermal fluids from hydrothermal vent fields at mid-ocean ridge.
The vent temperature, fluid properties, and mineral deposition processes significantly affect the δ56Fe values of hydrothermal sulfides.
(3) Chalcopyrite is preferentially enriched in heavy Fe isotopes, whereas sphalerite and pyrite are enriched in light Fe isotopes.
In addition, the δ56Fe values of pyrite/marcasite display a larger range than those of chalcopyrite.
This pattern is directly related to equilibrium fractionation or kinetic fractionation of Fe isotopes during the deposition of sulfides.
To better understand the Fe isotope compositions of modern seafloor hydrothermal systems, the geochemical behavior and fractionation mechanisms of Fe isotopes require further in situ study.
American Psychological Association (APA)
Li, Xiaohu& Wang, Jianqiang& Wang, Hao. 2017. Fe Isotopic Compositions of Modern Seafloor Hydrothermal Systems and Their Influence Factors. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1171346
Modern Language Association (MLA)
Li, Xiaohu…[et al.]. Fe Isotopic Compositions of Modern Seafloor Hydrothermal Systems and Their Influence Factors. Journal of Chemistry No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1171346
American Medical Association (AMA)
Li, Xiaohu& Wang, Jianqiang& Wang, Hao. Fe Isotopic Compositions of Modern Seafloor Hydrothermal Systems and Their Influence Factors. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1171346
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171346