Discovery of a new hydrothermal venting site in the southernmost Mariana Arc: Al-rich hydrothermal plumes and white smoker activity associated with biogenic methane

Toshitaka Gamo, Harue Masuda, Toshiro Yamanaka, Kei Okamura, Junichiro Ishibashi, Eiichiro Nakayama, Hajime Obata, Kiminori Shitashima, Yoshiro Nishio, Hiroshi Hasumoto, Masaharu Watanabe, Kyohiko Mitsuzawa, Nobukazu Seama, Urumu Tsunogai, Fumitaka Kouzuma, Yuji Sano

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

This paper reports a series of studies leading to the discovery of a submarine hydrothermal field (called Nakayama Field) at an arc seamount (12°43′ N, 143°32′ E) in the southernmost part of the Mariana Trough, western Pacific Ocean. We first detected hydrothermal plumes characterized by water column anomalies of temperature, light transmission, Mn, Fe, Al, O2, CH 4, and δ13C of CH4 above the summit caldera of the seamount. Then deep-tow camera surveys confirmed the existence of hydrothermal activity inside the caldera, and an ROV dive finally discovered white smoker-type fluid venting associated with vent fauna. A high concentration of aluminum in the plume and white smoker-type emissions imply acidic hydrothermal activity similar to that observed at the DESMOS Caldera in the eastern Manus Basin, Papua New Guinea. Anomalously low δ13C (CH 4) of-38‰ of a vent fluid sample compared to other arc hydrothermal systems along the Izu-Bonin and Mariana Arcs suggests an incorporation of biogenic methane based on a subsurface microbial ecosystem.

Original languageEnglish
Pages (from-to)527-534
Number of pages8
JournalGeochemical Journal
Volume38
Issue number6
Publication statusPublished - 2004
Externally publishedYes

Fingerprint

submarine hydrothermal vents
hydrothermal plume
venting
calderas
Vents
Methane
caldera
plumes
seamounts
methane
arcs
vents
hydrothermal activity
seamount
Remotely operated vehicles
Fluids
Light transmission
Aluminum
Papua New Guinea
methylidyne

Keywords

  • Aluminum anomaly
  • Biogenic methane
  • Hydrothermal plume chemistry
  • Southern Mariana Trough
  • Submarine hydrothermal acitivity

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Discovery of a new hydrothermal venting site in the southernmost Mariana Arc : Al-rich hydrothermal plumes and white smoker activity associated with biogenic methane. / Gamo, Toshitaka; Masuda, Harue; Yamanaka, Toshiro; Okamura, Kei; Ishibashi, Junichiro; Nakayama, Eiichiro; Obata, Hajime; Shitashima, Kiminori; Nishio, Yoshiro; Hasumoto, Hiroshi; Watanabe, Masaharu; Mitsuzawa, Kyohiko; Seama, Nobukazu; Tsunogai, Urumu; Kouzuma, Fumitaka; Sano, Yuji.

In: Geochemical Journal, Vol. 38, No. 6, 2004, p. 527-534.

Research output: Contribution to journalArticle

Gamo, T, Masuda, H, Yamanaka, T, Okamura, K, Ishibashi, J, Nakayama, E, Obata, H, Shitashima, K, Nishio, Y, Hasumoto, H, Watanabe, M, Mitsuzawa, K, Seama, N, Tsunogai, U, Kouzuma, F & Sano, Y 2004, 'Discovery of a new hydrothermal venting site in the southernmost Mariana Arc: Al-rich hydrothermal plumes and white smoker activity associated with biogenic methane', Geochemical Journal, vol. 38, no. 6, pp. 527-534.
Gamo, Toshitaka ; Masuda, Harue ; Yamanaka, Toshiro ; Okamura, Kei ; Ishibashi, Junichiro ; Nakayama, Eiichiro ; Obata, Hajime ; Shitashima, Kiminori ; Nishio, Yoshiro ; Hasumoto, Hiroshi ; Watanabe, Masaharu ; Mitsuzawa, Kyohiko ; Seama, Nobukazu ; Tsunogai, Urumu ; Kouzuma, Fumitaka ; Sano, Yuji. / Discovery of a new hydrothermal venting site in the southernmost Mariana Arc : Al-rich hydrothermal plumes and white smoker activity associated with biogenic methane. In: Geochemical Journal. 2004 ; Vol. 38, No. 6. pp. 527-534.
@article{c7ad0fa2b2f14a03b4cd8b6ddc1bf8fd,
title = "Discovery of a new hydrothermal venting site in the southernmost Mariana Arc: Al-rich hydrothermal plumes and white smoker activity associated with biogenic methane",
abstract = "This paper reports a series of studies leading to the discovery of a submarine hydrothermal field (called Nakayama Field) at an arc seamount (12°43′ N, 143°32′ E) in the southernmost part of the Mariana Trough, western Pacific Ocean. We first detected hydrothermal plumes characterized by water column anomalies of temperature, light transmission, Mn, Fe, Al, O2, CH 4, and δ13C of CH4 above the summit caldera of the seamount. Then deep-tow camera surveys confirmed the existence of hydrothermal activity inside the caldera, and an ROV dive finally discovered white smoker-type fluid venting associated with vent fauna. A high concentration of aluminum in the plume and white smoker-type emissions imply acidic hydrothermal activity similar to that observed at the DESMOS Caldera in the eastern Manus Basin, Papua New Guinea. Anomalously low δ13C (CH 4) of-38‰ of a vent fluid sample compared to other arc hydrothermal systems along the Izu-Bonin and Mariana Arcs suggests an incorporation of biogenic methane based on a subsurface microbial ecosystem.",
keywords = "Aluminum anomaly, Biogenic methane, Hydrothermal plume chemistry, Southern Mariana Trough, Submarine hydrothermal acitivity",
author = "Toshitaka Gamo and Harue Masuda and Toshiro Yamanaka and Kei Okamura and Junichiro Ishibashi and Eiichiro Nakayama and Hajime Obata and Kiminori Shitashima and Yoshiro Nishio and Hiroshi Hasumoto and Masaharu Watanabe and Kyohiko Mitsuzawa and Nobukazu Seama and Urumu Tsunogai and Fumitaka Kouzuma and Yuji Sano",
year = "2004",
language = "English",
volume = "38",
pages = "527--534",
journal = "Geochemical Journal",
issn = "0016-7002",
publisher = "The Physiological Society of Japan",
number = "6",

}

TY - JOUR

T1 - Discovery of a new hydrothermal venting site in the southernmost Mariana Arc

T2 - Al-rich hydrothermal plumes and white smoker activity associated with biogenic methane

AU - Gamo, Toshitaka

AU - Masuda, Harue

AU - Yamanaka, Toshiro

AU - Okamura, Kei

AU - Ishibashi, Junichiro

AU - Nakayama, Eiichiro

AU - Obata, Hajime

AU - Shitashima, Kiminori

AU - Nishio, Yoshiro

AU - Hasumoto, Hiroshi

AU - Watanabe, Masaharu

AU - Mitsuzawa, Kyohiko

AU - Seama, Nobukazu

AU - Tsunogai, Urumu

AU - Kouzuma, Fumitaka

AU - Sano, Yuji

PY - 2004

Y1 - 2004

N2 - This paper reports a series of studies leading to the discovery of a submarine hydrothermal field (called Nakayama Field) at an arc seamount (12°43′ N, 143°32′ E) in the southernmost part of the Mariana Trough, western Pacific Ocean. We first detected hydrothermal plumes characterized by water column anomalies of temperature, light transmission, Mn, Fe, Al, O2, CH 4, and δ13C of CH4 above the summit caldera of the seamount. Then deep-tow camera surveys confirmed the existence of hydrothermal activity inside the caldera, and an ROV dive finally discovered white smoker-type fluid venting associated with vent fauna. A high concentration of aluminum in the plume and white smoker-type emissions imply acidic hydrothermal activity similar to that observed at the DESMOS Caldera in the eastern Manus Basin, Papua New Guinea. Anomalously low δ13C (CH 4) of-38‰ of a vent fluid sample compared to other arc hydrothermal systems along the Izu-Bonin and Mariana Arcs suggests an incorporation of biogenic methane based on a subsurface microbial ecosystem.

AB - This paper reports a series of studies leading to the discovery of a submarine hydrothermal field (called Nakayama Field) at an arc seamount (12°43′ N, 143°32′ E) in the southernmost part of the Mariana Trough, western Pacific Ocean. We first detected hydrothermal plumes characterized by water column anomalies of temperature, light transmission, Mn, Fe, Al, O2, CH 4, and δ13C of CH4 above the summit caldera of the seamount. Then deep-tow camera surveys confirmed the existence of hydrothermal activity inside the caldera, and an ROV dive finally discovered white smoker-type fluid venting associated with vent fauna. A high concentration of aluminum in the plume and white smoker-type emissions imply acidic hydrothermal activity similar to that observed at the DESMOS Caldera in the eastern Manus Basin, Papua New Guinea. Anomalously low δ13C (CH 4) of-38‰ of a vent fluid sample compared to other arc hydrothermal systems along the Izu-Bonin and Mariana Arcs suggests an incorporation of biogenic methane based on a subsurface microbial ecosystem.

KW - Aluminum anomaly

KW - Biogenic methane

KW - Hydrothermal plume chemistry

KW - Southern Mariana Trough

KW - Submarine hydrothermal acitivity

UR - http://www.scopus.com/inward/record.url?scp=9744224562&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=9744224562&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:9744224562

VL - 38

SP - 527

EP - 534

JO - Geochemical Journal

JF - Geochemical Journal

SN - 0016-7002

IS - 6

ER -