Roberts, S. et al. (2003): Contrasting evolution of hydrothermal fluids in the PACMANUS system, Manus Basin; the Sr and S isotope evidence

Leg/Site/Hole:
ODP 193
ODP 193 1188
ODP 193 1189
Identifier:
2003-063130
georefid

10.1130/G19716.1
doi

Creator:
Roberts, S.
University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
author

Bach, W.
Woods Hole Oceanographic Institution, United States
author

Binns, R. A.
CSIRO Exploration and Mining, Australia
author

Vanko, D. A.
Towson University, United States
author

Yeats, C. J.
Scottish Universities Environmental Research Centre, United Kingdom
author

Teagle, D. A. H.
author

Blacklock, K.
author

Blusztajn, J. S.
author

Boyce, A. J.
author

Cooper, M. J.
author

Holland, N.
author

McDonald, B.
author

Identification:
Contrasting evolution of hydrothermal fluids in the PACMANUS system, Manus Basin; the Sr and S isotope evidence
2003
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
31
9
805-808
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 (super 87) Sr/ (super 86) Sr and delta (super 34) S 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.
English
Serial
Coverage:Geographic coordinates:
North:-3.4300
West:151.4000East: 151.4100
South:-3.4400

Isotope geochemistry; Oceanography; alkaline earth metals; anhydrite; Bismarck Sea; black smokers; breccia; cores; fluid phase; geochemistry; geothermal systems; hydrochemistry; hydrothermal vents; isotope ratios; isotopes; Leg 193; Manus Basin; massive deposits; massive sulfide deposits; metallogeny; metals; metasomatism; mineral deposits, genesis; mineralization; modern analogs; Ocean Drilling Program; ODP Site 1188; ODP Site 1189; Pacific Ocean; PACMANUS Field; Pual Ridge; Roman Ruins Field; S-34/S-32; sea water; Snowcap Field; South Pacific; Southwest Pacific; Sr-87/Sr-86; stable isotopes; strontium; submarine volcanoes; sulfates; sulfur; veins; volcanism; volcanoes; volcanogenic massive sulfide deposits; wall-rock alteration; water-rock interaction; West Pacific;

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