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PACMANUS Deposit

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Journal Article
Journal: Economic Geology
Published: 01 August 2009
Economic Geology (2009) 104 (5): 749–758.
...Yannick Beaudoin; Steven D. Scott Abstract Mass balance calculations of metal leaching and deposition in the PACMANUS submarine hydrothermal vent field in the eastern Manus basin in the Bismarck Sea off the east coast of Papua New Guinea indicate that simple leaching of the underlying volcanic pile...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 January 2001
Economic Geology (2001) 96 (1): 91–107.
... decreases rapidly. Such a rapid decrease is believed to be due to a combination of magnetite fractionation and pre-eruptive degassing of the andesitic magma. A dual source of gold is proposed for the PACMANUS deposit, whereby gold is leached from the subsea-floor rocks but is also added to the hydrothermal...
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Journal Article
Journal: Economic Geology
Published: 01 December 2014
Economic Geology (2014) 109 (8): 2243–2259.
...R. A. Binns Abstract The 2.7 m Bikpela chimney differs from sulfide-rich chimneys at PACMANUS, eastern Manus basin, by virtue of high silica content, a stromatolite-like layered structure, and the presence of a large internal collapse cavity. Its interior is dominated by 5- to 10-mm-thick primary...
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Journal Article
Journal: Economic Geology
Published: 01 May 2006
Economic Geology (2006) 101 (3): 633–650.
... systems that produced volcanogenic polymetallic massive sulfide deposits. Ocean Drilling Program (ODP) Leg 193 drilled the subsea-floor hydrothermal alteration zone of Pacmanus in a high-temperature discharge area (Roman Ruins) and a low-temperature discharge area (Snowcap), reaching a maximum depth...
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Journal Article
Journal: Geology
Published: 01 September 2003
Geology (2003) 31 (9): 805–808.
... 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...
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Journal Article
Published: 01 April 2006
Clays and Clay Minerals (2006) 54 (2): 240–251.
... thick amorphous rim enveloping the apparently unaltered core (Figure 11 ). The EDS spectra show that the amorphous rim has markedly smaller Na, Ca and Al contents when compared to the unaltered plagioclase (Figure 12a,b ). Figure 1. Distribution of hydrothermal deposits at the PACMANUS vent...
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Image
Distribution of hydrothermal <b>deposits</b> at the <b>PACMANUS</b> vent field. The map a...
Published: 01 April 2006
Figure 1. Distribution of hydrothermal deposits at the PACMANUS vent field. The map also gives the sampling location of the dacitic lava investigated in the present study. The inset shows the seafloor geology of the eastern Manus Basin (modified from Binns et al. , 2002 ).
Journal Article
Journal: Economic Geology
Published: 01 August 2002
Economic Geology (2002) 97 (5): 1079–1100.
... for various types of ore deposits and mineral occurrences. Significant amounts of magmatic fluid can be degassed during the fractionation of a shallow magma chamber. At least 1.7 percent H 2 O is estimated to have exsolved from the magma at PACMANUS. If a fluid is concentrated in a shallow magma chamber...
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Journal Article
Published: 01 August 2001
The Canadian Mineralogist (2001) 39 (4): 957–978.
... ) and ancient deposits on land ( e.g., Huston & Large 1989 , Hutchinson 1990 , Large 1990 , Huston et al. 1992 ). In this study of gold-rich precipitates from the eastern Manus Basin, Papua New Guinea, we describe the geochemistry and mineralogy of gold in hydrothermal precipitates from the PACMANUS...
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Journal Article
Journal: Economic Geology
Published: 01 August 2001
Economic Geology (2001) 96 (5): 913–938.
...Ross R. Large; Jocelyn McPhie; J. Bruce Gemmell; Walter Herrmann; Garry J. Davidson Abstract Variations in shape, metal content, alteration mineralogy, and volcanic host rocks of the ore deposits in the two major volcanic-hosted massive sulfide (VHMS) districts of eastern Australia, the Cambrian...
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Journal Article
Journal: Economic Geology
Published: 01 February 2019
Economic Geology (2019) 114 (1): 165–176.
...Si-Yu Hu; Stephen J. Barnes; A. Matthew Glenn; Anais Pagès; Joanna Parr; Colin MacRae; Ray Binns Abstract Active sea floor hydrothermal systems are modern analogues of ancient volcanogenic massive sulfide deposits. Hydrothermal sulfide chimneys are one of the important components in these systems...
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Journal Article
Journal: Geology
Published: 01 January 2007
Geology (2007) 35 (1): e158–e159.
... barite and phosphorite deposits” (p. 403). It has been well established in numerous studies that these deposits do not occur at the same stratigraphic level. The major phosphorite and barite deposits in the lower Cambrian black shale sequence occur far below the Ni-Mo sulfide layer ( Zhu et al., 2003...
Journal Article
Journal: Economic Geology
Published: 01 September 2005
Economic Geology (2005) 100 (6): 1085–1096.
... island-arc crust formed during earlier southward subduction on the now inactive Manus trench system. Active hydrothermal 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...
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Journal Article
Published: 01 November 2011
Russ. Geol. Geophys. (2011) 52 (11): 1412–1420.
... as high as the salinity of seawater. The data obtained substantiate the phase separation of fluid in the deepest-water submarine hydrothermal Ashadze system and give an idea of the chemical composition and temperature of fluids forming sulfide deposits in the Ashadze and Logatchev hydrothermal fields...
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Journal Article
Journal: Economic Geology
Published: 01 August 2001
Economic Geology (2001) 96 (5): 1175–1200.
.... It has been concluded that the Thalanga deposit formed on top of a constructive, deep-marine, felsic volcanic center ( Fig. 3 ; Paulick and McPhie, 1999 ). This geologic setting is similar to the environment of the modern PACMANUS hydrothermal field, Manus basin, Papua New Guinea ( Binns and Scott, 1993...
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Journal Article
Journal: Economic Geology
Published: 01 September 2009
Economic Geology (2009) 104 (6): 775–792.
... and temperatures generally greater than 220°C, and locally greater than 270°C, in the intensely altered facies. Pyrite sulfur isotope compositions in the Boco altered facies ( δ 34 S values 1.2–7.2‰) are distinctly lower than most Tasmanian massive sulfide deposits (6–15‰), compatible with a dominantly magmatic...
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Journal Article
Journal: Economic Geology
Published: 01 May 2021
Economic Geology (2021) 116 (3): 581–606.
...Xiao-Yu Zhao; Hong Zhong; Rui-Zhong Hu; Wei Mao; Zhong-Jie Bai; Ting-Guang Lan; Kai Xue Abstract The Luoboling Cu-Mo deposit, with 1.4 million tons (Mt) Cu and 0.11 Mt Mo, is the largest porphyry deposit in the Zijinshan district of southeast China. Mineralization at Luoboling is divided...
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Journal Article
Journal: Economic Geology
Published: 01 December 2004
Economic Geology (2004) 99 (8): 1711–1725.
... altered rocks discovered on the summit of Conical seamount represent a unique example of submarine gold mineralization with mineralogical, chemical, and textural characteristics common to some subaerial epithermal systems. The giant Ladolam epithermal gold deposit (42 Moz Au) is situated in the crater...
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Series: Society of Exploration Geophysicists Geophysical Monograph Series, Society of Exploration Geophysicists Geophysical Monograph Series
Published: 01 January 2003
DOI: 10.5382/Mono.11.14
EISBN: 9781629490069
... sources, felsic magmas may act as a source of metals in massive sulfide deposits ( Sawkins, 1986 ; Urabe, 1987 ; Goodfellow and McCutcheon, 2003 ). Evidence from the PACMANUS hydrothermal system ( Moss et al., 2001 ) and from melt inclusion studies ( Yang and Scott, 2003 ) indicates that the degassing...
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Journal Article
Journal: Economic Geology
Published: 01 March 2006
Economic Geology (2006) 101 (2): 479–480.
... from the PACMANUS field in the Manus basin, Papua New Guinea, and copper deposits in the Iberian pyrite belt, Portugal and Spain. Understanding ore systems through precise geochronology, isotope tracing, and microgeochemistry—nonmagmatic components in fluids of South American Fe oxide–Cu-Au deposits...