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DESMOS hydrothermal field

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Journal Article
Published: 01 January 2001
Reviews in Mineralogy and Geochemistry (2001) 43 (1): 469-525.
... seawater. Manus Basin is a back-arc basin located north of the New Britain island arc that consists of NE-SW trending ridge segments offset by transform faults. On the Manus Spreading Center in central Manus Basin the Vienna Woods hydrothermal field consists of a 300 m-diameter sulfide mound...
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Journal Article
Published: 01 February 2001
The Canadian Mineralogist (2001) 39 (1): 17-31.
... emitted from hydrothermal plumes in the eastern Manus Basin hydrothermal field, Papua New Guinea, was detected and sampled by CTD-transmissometer surveys during marine expeditions in 1991 and 1993. Characterization of suspended particulate matter has helped to prove that the main sources of venting...
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Journal Article
Journal: Economic Geology
Published: 01 December 2014
Economic Geology (2014) 109 (8): 2207-2226.
... and strong venting of the Onsen hydrothermal field occurs within the basaltic andesite DESMOS caldera ( Gamo et al., 1997 ; Gemmel et al., 1999 ). Geochemical analyses of whole-rock and seawater samples were conducted at CSIRO’s laboratories in Australia, using a combination of X-ray fluorescence (XRF...
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Journal Article
Journal: Economic Geology
Published: 01 December 2014
Economic Geology (2014) 109 (8): 2227-2242.
...Shannon M. Johns; Robert G. Ditchburn; Bernard J. Barry; Christopher J. Yeats Abstract The geochronology of seafloor hydrothermal activity from several mineralized, active and inactive vent fields at Suzette and Pual Ridge, eastern Manus back-arc basin, Bismarck Sea, Papua New Guinea, has been...
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Journal Article
Published: 01 August 2001
The Canadian Mineralogist (2001) 39 (4): 957-978.
... ). The discovery of CH 4 and 3 He anomalies in the water column ( Craig & Poreda 1987 , Craig et al. 1987b ) was the first indication of hydrothermal activity in the eastern part of Manus Basin. Subsequently, three main vent fields, DESMOS, Susu Knolls and PACMANUS, were found in the region. DESMOS...
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Journal Article
Journal: Economic Geology
Published: 01 September 2005
Economic Geology (2005) 100 (6): 1097-1133.
... the deeper parts of the tows suggests that a vent fauna assemblage previously occurred at this location but is now very sparse (Fig. 7a ). Together, these observations suggest that hydrothermal activity is presently waning and cannot support a large endemic population of vent fauna. Alternatively, the field...
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Series: Economic Geology
Published: 01 January 2005
DOI: 10.5382/AV100.06
EISBN: 9781934969519
... mapping, and in some cases drilling, indicates that a number of deposits contain 1 to 5 million tons (Mt) of massive sulfide (e.g., TAG hydrothermal field on the Mid-Atlantic Ridge, deposits of the Galapagos Rift, and at 13°N on the East Pacific Rise). Two sediment-hosted deposits, at Middle Valley...
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Journal Article
Journal: Economic Geology
Published: 01 August 2002
Economic Geology (2002) 97 (5): 1079-1100.
... Manus basin, back-arc extension occurs in remnant island-arc crust formed during earlier southward subduction along the Manus trench system ( Fig. 1A ). Active hydrothermal fields and extensive sulfide deposits ( Fig. 1B ) found at PACMANUS, Desmos, and Susu Knolls have been well studied ( Binns...
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Journal Article
Journal: Economic Geology
Published: 01 February 2019
Economic Geology (2019) 114 (1): 165-176.
... formed due to previous subduction ( Binns and Scott, 1993 ). A large number of hydrothermal fields have developed in the eastern Manus basin, with major hydrothermal fields including PACMANUS (Papua New Guinea-Australia-Canada-Manus basin), Desmos, and SuSu Knolls ( Fig. 1B ) ( Binns et al., 1995 , 2007...
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Journal Article
Journal: Economic Geology
Published: 01 September 2005
Economic Geology (2005) 100 (6): 1085-1096.
... fields and extensive sulfide deposits are found at PACMANUS, Desmos, and Susu knolls ( Sakai, 1990 ; Binns and Scott, 1993 , Scott and Binns, 1995 ; Auzende et al., 1996a , b ; Gamo et al., 1996 ; Gemmell et al., 1996 ; Binns et al., 1997 ). At PACMANUS, the focus of this study, hydrothermal...
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Journal Article
Journal: Geology
Published: 01 September 2003
Geology (2003) 31 (9): 805-808.
... subsurface phase separation and hydrothermal temperatures >350 °C below the chimney fields. The Desmos site emits vent fluids rich in sulfate, with associated acid-sulfate alteration assemblages that show remarkably low δD \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb...
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Journal Article
Published: 01 August 2004
Geochemistry: Exploration, Environment, Analysis (2004) 4 (3): 253-278.
...-arc Taupo Volcanic Zone ( Cole 1990; Brathwaite & Pirajno 1993; Hedenquist et al . 1993; Stoffers et al . 1999 , , , ). Venting of low-temperature (88–120°C), highly acidic hydrothermal fluids were discovered in the DESMOS submarine caldera ( Gamo et al . 1997 ). These fluids are vented...
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Journal Article
Journal: Economic Geology
Published: 01 May 2006
Economic Geology (2006) 101 (3): 633-650.
... interaction processes. Here, we investigate the zonation in phyllosilicate assemblages below the submarine, dacitehosted Pacmanus hydrothermal field. This active, massive sulfide-forming system is believed to represent a modern analogue for many massive sulfide deposits situated in ancient felsic volcanic...
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Journal Article
Journal: Economic Geology
Published: 01 December 2014
Economic Geology (2014) 109 (8): 2079-2101.
... maximum value as long as hydrostatic conditions are realized. Compilation of maximum measured vent temperatures of seafloor hydrothermal systems located in different subduction-related environments shows that all known fluids indeed plot either in the single-phase field for seawater or on the boiling...
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Journal Article
Journal: Economic Geology
Published: 01 January 2001
Economic Geology (2001) 96 (1): 91-107.
... and Urabe, 1995 ; Iizasa et al., 1999 ), raising the possibility that different, or more efficient, mechanisms than occur on midocean ridges may be responsible for the enrichment of gold in this tectonic setting. The PACMANUS hydrothermal field, discovered during the 1991 PACMANUS I expedition...
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Journal Article
Journal: Economic Geology
Published: 01 May 2011
Economic Geology (2011) 106 (3): 437-450.
... alteration and the presence of a nearby shallow marine hydrothermal field, we conclude that the Lisca Bianca breccias are the result of hydrothermal, fluid-assisted fracturing ( Jébrak, 1997 ) in a sub-surface setting. The andesite was probably part of a large original lava dome or subvolcanic sill...
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Journal Article
Journal: Economic Geology
Published: 01 December 2012
Economic Geology (2012) 107 (8): 1649-1668.
... Abstract Sea-floor imagery, volcanic rock, massive sulfide, and hydrothermal plume samples (δ 3 He, pH, dissolved Fe and Mn, and particulate chemistry) have been collected from the Rumble II West volcano, southern Kermadec arc, New Zealand. Rumble II West is a caldera volcano with an ∼3-km-diameter summit...
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Series: Society of Exploration Geophysicists Geophysical Monograph Series
Published: 01 January 2003
DOI: 10.5382/Mono.11.17
EISBN: 9781629490069
..., the samples of iron-formation and chlorite tuff have low abundances of these elements and, therefore, do not have a significant hydrogenous component. On a (Ni + Co + Cu)-Fe-Mn ternary plot of Bonatti et al. (1972 ; not shown), the Heath Steele belt samples cluster near the Fe apex in the hydrothermal field...
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Journal Article
Journal: Economic Geology
Published: 01 September 2007
Economic Geology (2007) 102 (6): 1047-1061.
.... , 1990 , Geochemistry of hydrothermal fluids from Axial seamount hydrothermal emissions study vent field, Juan de Fuca Ridge: Subseafloor boiling and subsequent fluid-rock interaction : Journal of Geophysical Research , v. 95 , p. 12,895 – 12,921 . Butterfield , D.A. , McDuff , R.E...
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Journal Article
Journal: Economic Geology
Published: 01 December 2004
Economic Geology (2004) 99 (8): 1711-1725.
...J. Bruce Gemmell; Robina Sharpe; Ian R. Jonasson; Peter M. Herzig Abstract Conical seamount is a submarine alkali basalt volcano situated 10 km south of Lihir Island in the Tabar-Feni island chain, Papua New Guinea. Polymetallic (Zn-Pb-Ag-Au-As-Sb) veins, pyritic stockwork, and hydrothermally...
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