Zinc-rich pyrite from the TAG active mound, the TAG hydrotherma field, Mid-Atlantic Ridge

Su Young Lee; Masatsugu Ohnishi; Yasuhiro Shibata; Makoto Wwatanabe; Kenichi Hoshino; Mayumi Jige; Xiangping Gu; Hitoshi Chiba; Tamotsu Oomori; Kantaro Fujioka; Peter A. Rona

doi:10.1111/j.1751-3928.2001.tb00082.x

Zinc-rich pyrite from the TAG active mound, the TAG hydrotherma field, Mid-Atlantic Ridge

Su Young Lee, Masatsugu Ohnishi, Yasuhiro Shibata, Makoto Wwatanabe, Kenichi Hoshino, Mayumi Jige, Xiangping Gu, Hitoshi Chiba, Tamotsu Oomori, Kantaro Fujioka, Peter A. Rona

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Pyrite rich in Zn, up to 3.1 wt%, was found in the TAG active mound of the TAG hydrothermal field, the slow-spreading Mid-Atlantic Ridge at 26°08′N and 44°49′W. The Zn-rich pyrite is characterized by an optical homogeneity, a homogeneous distribution of Zn in the back-scattered electron images, both at a magnification of about 500, a negative correlation between Fe and Zn contents of the pyrite and a rather small unit cell edge (a₀ = 5.4117 ± 0.0008Å), strongly indicating that the detected Zn is present in the pyrite in solid solution. Such Zn concentrations are observed exclusively in dendritic pyrite, suggesting that the Zn-rich pyrite grew from hydrothermal fluids of a high degree of supersaturation due to quenching on the seafloor.

Original language	English
Pages (from-to)	63-68
Number of pages	6
Journal	Resource Geology
Volume	51
Issue number	1
DOIs	https://doi.org/10.1111/j.1751-3928.2001.tb00082.x
Publication status	Published - Mar 1 2001

Keywords

Dendritic growth texture
Mid-Atlantic Ridge
Solid solution
TAG active mound
TAG hydrothermal field
Zn-rich pyrite

ASJC Scopus subject areas

Geology
Geochemistry and Petrology

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Zinc-rich pyrite from the TAG active mound, the TAG hydrotherma field, Mid-Atlantic Ridge. / Lee, Su Young; Ohnishi, Masatsugu; Shibata, Yasuhiro; Wwatanabe, Makoto; Hoshino, Kenichi; Jige, Mayumi; Gu, Xiangping; Chiba, Hitoshi; Oomori, Tamotsu; Fujioka, Kantaro; Rona, Peter A.

In: Resource Geology, Vol. 51, No. 1, 01.03.2001, p. 63-68.

Research output: Contribution to journal › Article › peer-review

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title = "Zinc-rich pyrite from the TAG active mound, the TAG hydrotherma field, Mid-Atlantic Ridge",

abstract = "Pyrite rich in Zn, up to 3.1 wt%, was found in the TAG active mound of the TAG hydrothermal field, the slow-spreading Mid-Atlantic Ridge at 26°08′N and 44°49′W. The Zn-rich pyrite is characterized by an optical homogeneity, a homogeneous distribution of Zn in the back-scattered electron images, both at a magnification of about 500, a negative correlation between Fe and Zn contents of the pyrite and a rather small unit cell edge (a0 = 5.4117 ± 0.0008{\AA}), strongly indicating that the detected Zn is present in the pyrite in solid solution. Such Zn concentrations are observed exclusively in dendritic pyrite, suggesting that the Zn-rich pyrite grew from hydrothermal fluids of a high degree of supersaturation due to quenching on the seafloor.",

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AU - Lee, Su Young

AU - Ohnishi, Masatsugu

AU - Shibata, Yasuhiro

AU - Wwatanabe, Makoto

AU - Hoshino, Kenichi

AU - Jige, Mayumi

AU - Gu, Xiangping

AU - Chiba, Hitoshi

AU - Oomori, Tamotsu

AU - Fujioka, Kantaro

AU - Rona, Peter A.

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N2 - Pyrite rich in Zn, up to 3.1 wt%, was found in the TAG active mound of the TAG hydrothermal field, the slow-spreading Mid-Atlantic Ridge at 26°08′N and 44°49′W. The Zn-rich pyrite is characterized by an optical homogeneity, a homogeneous distribution of Zn in the back-scattered electron images, both at a magnification of about 500, a negative correlation between Fe and Zn contents of the pyrite and a rather small unit cell edge (a0 = 5.4117 ± 0.0008Å), strongly indicating that the detected Zn is present in the pyrite in solid solution. Such Zn concentrations are observed exclusively in dendritic pyrite, suggesting that the Zn-rich pyrite grew from hydrothermal fluids of a high degree of supersaturation due to quenching on the seafloor.

AB - Pyrite rich in Zn, up to 3.1 wt%, was found in the TAG active mound of the TAG hydrothermal field, the slow-spreading Mid-Atlantic Ridge at 26°08′N and 44°49′W. The Zn-rich pyrite is characterized by an optical homogeneity, a homogeneous distribution of Zn in the back-scattered electron images, both at a magnification of about 500, a negative correlation between Fe and Zn contents of the pyrite and a rather small unit cell edge (a0 = 5.4117 ± 0.0008Å), strongly indicating that the detected Zn is present in the pyrite in solid solution. Such Zn concentrations are observed exclusively in dendritic pyrite, suggesting that the Zn-rich pyrite grew from hydrothermal fluids of a high degree of supersaturation due to quenching on the seafloor.

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KW - Mid-Atlantic Ridge

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Zinc-rich pyrite from the TAG active mound, the TAG hydrotherma field, Mid-Atlantic Ridge

Abstract

Keywords

ASJC Scopus subject areas

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