Hydrothermal plume mapping as a prospecting tool for seafloor sulfide deposits: a case study at the Zouyu-1 and Zouyu-2 hydrothermal fields in the southern Mid-Atlantic Ridge

Tao, Chunhui; Chen, Sheng; Baker, Edward T.; Li, Huaiming; Liang, Jin; Liao, Shili; Chen, Yongshun John; Deng, Xianming; Zhang, Guoyin; Gu, Chunhua; Wu, Jialin

doi:10.1007/s11001-016-9275-2

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Hydrothermal plume mapping as a prospecting tool for seafloor sulfide deposits: a case study at the Zouyu-1 and Zouyu-2 hydrothermal fields in the southern Mid-Atlantic Ridge

2017
By Tao, Chunhui ; Chen, Sheng ; Baker, Edward T. ; ...
Source: Marine Geophysical Research, 38(1-2), 3-16.

[PDF-1.06 MB]

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Journal Title:

Marine Geophysical Research
Personal Author:

Tao, Chunhui ; Chen, Sheng ; Baker, Edward T. ; Li, Huaiming ; Liang, Jin ; ... More +

Tao, Chunhui ; Chen, Sheng ; Baker, Edward T. ; Li, Huaiming ; Liang, Jin ; Liao, Shili ; Chen, Yongshun John ; Deng, Xianming ; Zhang, Guoyin ; Gu, Chunhua ; Wu, Jialin Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean)

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) Less -
Description:

Seafloor hydrothermal polymetallic sulfide deposits are a new type of resource, with great potential economic value and good prospect development. This paper discusses turbidity, oxidation-reduction potential, and temperature anomalies of hydrothermal plumes from the Zouyu-1 and Zouyu-2 hydrothermal fields on the southern Mid-Atlantic Ridge. We use the known location of these vent fields and plume data collected in multiple years (2009, 2011, 2013) to demonstrate how real-time plume exploration can be used to locate active vent fields, and thus associated sulfide deposits. Turbidity anomalies can be detected 10 s of km from an active source, but the location precision is no better than a few kilometers because fine-grained particles are quasi-conservative over periods of many days. Temperature and oxidation-reduction potential anomalies provide location precision of a few hundred meters. Temperature anomalies are generally weak and difficult to reliably detect, except by chance encounters of a buoyant plume. Oxidation-reduction potential is highly sensitive (nmol concentrations of reduced hydrothermal chemicals) to discharges of all temperatures and responds immediately to a plume encounter. Real-time surveys using continuous tows of turbidity and oxidation-reduction potential sensors offer the most efficient and precise surface ship exploration presently possible.
Source:

Marine Geophysical Research, 38(1-2), 3-16.
DOI:

https://doi.org/10.1007/s11001-016-9275-2
Document Type:

Journal Article
Funding:

Grant no. NA10OAR4320148
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CC BY
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urn:sha256:44722cc8dd1108670bc3d787cb93ff12a5b4628baaf20a940c985b38332ec2b3
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https://repository.library.noaa.gov/view/noaa/16497/noaa_16497_DS1.pdf
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Hydrothermal plume mapping as a prospecting tool for seafloor sulfide deposits: a case study at the Zouyu-1 and Zouyu-2 hydrothermal fields in the southern Mid-Atlantic Ridge

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