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Contrasting evolution of hydrothermal fluids in the PACMANUS system, Manus Basin: the Sr and S isotope evidence

Roberts, S., Bach, W., Binns, R.A., Vanko, D.A., Yeats, C.J., Teagle, D.A.H., Blacklock, K., Blusztajn, J.S., Boyce, A.J., Cooper, M.J., Holland, N. and McDonald, B. (2003) Contrasting evolution of hydrothermal fluids in the PACMANUS system, Manus Basin: the Sr and S isotope evidence Geology, 31, (9), pp. 805-808. (doi:10.1130/G19716.1).

Record type: Article


Ocean Drilling Program (ODP) Leg 193 investigated two sites of hydrothermal activity along the crest of the Pual Ridge in the eastern Manus Basin. A site of low-temperature diffuse venting, Snowcap (Site 1188), and a high-temperature black smoker site, Roman Ruins (Site 1189), were drilled to depths of 386 and 206 m below seafloor (mbsf), respectively. Although the two sites are <1000 m apart, the 87Sr/86Sr and ?34S signatures of anhydrite recovered at both sites are very different. The data suggest a complex interplay among hydrothermal fluid, magmatic fluid, and seawater during alteration and mineralization of the PACMANUS (Papua New Guinea–Australia–Canada–Manus) system. These new results significantly expand the subsurface data on seafloor hydrothermal systems and may begin to explain the earliest processes of multistage mineralization and alteration history that typify ancient massive sulfide systems.

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Published date: 2003
Keywords: odp leg 193, hydrothermal springs, pactwbis, hydrothermal solutions, manus basin, bismarck sea, ocean drilling programme, odp site 1188, odp site 1189, anhydrite, pacmanus, sulphides, isotopes, geology


Local EPrints ID: 1974
ISSN: 0091-7613
PURE UUID: d05310c5-ea72-4302-a012-24778865613e
ORCID for S. Roberts: ORCID iD
ORCID for D.A.H. Teagle: ORCID iD
ORCID for M.J. Cooper: ORCID iD

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Date deposited: 06 May 2004
Last modified: 17 Jul 2017 17:16

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Author: S. Roberts ORCID iD
Author: W. Bach
Author: R.A. Binns
Author: D.A. Vanko
Author: C.J. Yeats
Author: D.A.H. Teagle ORCID iD
Author: K. Blacklock
Author: J.S. Blusztajn
Author: A.J. Boyce
Author: M.J. Cooper ORCID iD
Author: N. Holland
Author: B. McDonald

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