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

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
Externally published	Yes

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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10.1111/j.1751-3928.2001.tb00082.x

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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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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

KW - Solid solution

KW - TAG active mound

KW - TAG hydrothermal field

KW - Zn-rich pyrite

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

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Keywords

ASJC Scopus subject areas

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