Imaging hydrothermal mineral deposits area by reflection seismic processing using Vertical Cable Seismic and Ocean Based Sound Source

Yutaro Seino; Hidekazu Tokuyama; Juichiro Ashi; Kenji Tara; Eiichi Asakawa; Yasuhiro Asano; Akira Saito

doi:10.1109/Techno-Ocean.2016.7890756

Imaging hydrothermal mineral deposits area by reflection seismic processing using Vertical Cable Seismic and Ocean Based Sound Source

Yutaro Seino^*, Hidekazu Tokuyama, Juichiro Ashi, Kenji Tara, Eiichi Asakawa, Yasuhiro Asano, Akira Saito

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

For the estimation of the hydrothermal mineral deposits reserves, geophysical exploration is indispensable, and the practical geophysical survey was conducted in 2013 at the Izena cauldron in the Okinawa trough, known distribution area of the hydrothermal deposits. Shallow seismic data were successfully acquired by the Vertical Cable Seismic method with the Ocean Based Sound Source (VCS-OBSS system). The OBSS system can generate high frequency waves of 1kHz Ricker wavelet, and high resolution data were acquired at this complex hydrothermal area. The data were processed by the three-dimensional Pre-Stack Depth Migration (3D-PSDM) method, and the output volume size was 160m × 220m × 400m. As a result of the interpretation, several continuous reflectors were detected, considering to be indicating the buried sulfide ore mound and the stockwork zone. This study concludes that the VCS-OBSS system is one of the effective geophysical methods for the exploration of the ocean bottom hydrothermal mineral deposits.

Original language	English
Title of host publication	Techno-Ocean 2016: Return to the Oceans
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	22-27
Number of pages	6
ISBN (Electronic)	9781509024452
DOIs	https://doi.org/10.1109/Techno-Ocean.2016.7890756
Publication status	Published - 2017 Mar 30
Event	16th Techno-Ocean, Techno-Ocean 2016 - Kobe, Japan Duration: 2016 Oct 6 → 2016 Oct 8

Other

Other	16th Techno-Ocean, Techno-Ocean 2016
Country/Territory	Japan
City	Kobe
Period	16/10/6 → 16/10/8

Keywords

3D-PSDM
buried sulfide ore mound
hydrothermal mineral deposits
Izena cauldron
Okinawa trough
stockwork zone
VCS-OBSS system

ASJC Scopus subject areas

Oceanography
Water Science and Technology
Energy Engineering and Power Technology
Ocean Engineering
Instrumentation

Access to Document

10.1109/Techno-Ocean.2016.7890756

Cite this

Seino, Y., Tokuyama, H., Ashi, J., Tara, K., Asakawa, E., Asano, Y., & Saito, A. (2017). Imaging hydrothermal mineral deposits area by reflection seismic processing using Vertical Cable Seismic and Ocean Based Sound Source. In Techno-Ocean 2016: Return to the Oceans (pp. 22-27). [7890756] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/Techno-Ocean.2016.7890756

Imaging hydrothermal mineral deposits area by reflection seismic processing using Vertical Cable Seismic and Ocean Based Sound Source. / Seino, Yutaro; Tokuyama, Hidekazu; Ashi, Juichiro et al.
Techno-Ocean 2016: Return to the Oceans. Institute of Electrical and Electronics Engineers Inc., 2017. p. 22-27 7890756.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Seino, Y, Tokuyama, H, Ashi, J, Tara, K, Asakawa, E, Asano, Y & Saito, A 2017, Imaging hydrothermal mineral deposits area by reflection seismic processing using Vertical Cable Seismic and Ocean Based Sound Source. in Techno-Ocean 2016: Return to the Oceans., 7890756, Institute of Electrical and Electronics Engineers Inc., pp. 22-27, 16th Techno-Ocean, Techno-Ocean 2016, Kobe, Japan, 16/10/6. https://doi.org/10.1109/Techno-Ocean.2016.7890756

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author = "Yutaro Seino and Hidekazu Tokuyama and Juichiro Ashi and Kenji Tara and Eiichi Asakawa and Yasuhiro Asano and Akira Saito",

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AU - Asano, Yasuhiro

AU - Saito, Akira

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AB - For the estimation of the hydrothermal mineral deposits reserves, geophysical exploration is indispensable, and the practical geophysical survey was conducted in 2013 at the Izena cauldron in the Okinawa trough, known distribution area of the hydrothermal deposits. Shallow seismic data were successfully acquired by the Vertical Cable Seismic method with the Ocean Based Sound Source (VCS-OBSS system). The OBSS system can generate high frequency waves of 1kHz Ricker wavelet, and high resolution data were acquired at this complex hydrothermal area. The data were processed by the three-dimensional Pre-Stack Depth Migration (3D-PSDM) method, and the output volume size was 160m × 220m × 400m. As a result of the interpretation, several continuous reflectors were detected, considering to be indicating the buried sulfide ore mound and the stockwork zone. This study concludes that the VCS-OBSS system is one of the effective geophysical methods for the exploration of the ocean bottom hydrothermal mineral deposits.

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Imaging hydrothermal mineral deposits area by reflection seismic processing using Vertical Cable Seismic and Ocean Based Sound Source

Abstract

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Keywords

ASJC Scopus subject areas

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