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Monowai

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Journal Article
Journal: Economic Geology
Published: 01 December 2012
Economic Geology (2012) 107 (8): 1669-1694.
...; Christian Timm; Ian J. Graham; Ian C. Wright Abstract The Monowai volcanic center is located at the midpoint along the ∼2,530-km-long Tonga-Kermadec arc system. The Monowai volcanic center is comprised of a large elongate caldera (Monowai caldera area ∼35 km 2 ; depth to caldera floor 1,590 m), which has...
FIGURES | View All (10)
Image
Location and tectonic setting of the <b>Monowai</b> volcanic center at the norther...
Published: 01 December 2012
Fig. 1 Location and tectonic setting of the Monowai volcanic center at the northern end of the Kermadec arc. Map shows the hydrothermally active submarine volcanic centers (red dots).
Image
Bathymetric map of <b>Monowai</b> volcanic center, showing the locations of TV Gra...
Published: 01 December 2012
Fig. 2 Bathymetric map of Monowai volcanic center, showing the locations of TV Grabs (TVG), CDTO tow-yos, and vertical casts. Bathymetry collected by Simrad EM300 on the R/V Tangaroa in 2004. Light-gray dashed lines are the outlines of the two caldera structures, as identified by Graham et al
Image
Particle plume distributions at <b>Monowai</b> volcanic center during the NZAPLUME...
Published: 01 December 2012
Fig. 3 Particle plume distributions at Monowai volcanic center during the NZAPLUME III survey in 2004. The saw-toothed tow-path of the CTDO during tow-yos is shown (light gray lines). Locations of the tow-yos are shown in Figure 2 . The ΔNTU scale applies to all panels. A. NW-SE profile between
Image
Particle plume distributions at <b>Monowai</b> volcanic center during the NZAPLUME...
Published: 01 December 2012
Fig. 3 Particle plume distributions at Monowai volcanic center during the NZAPLUME III survey in 2004. The saw-toothed tow-path of the CTDO during tow-yos is shown (light gray lines). Locations of the tow-yos are shown in Figure 2 . The ΔNTU scale applies to all panels. A. NW-SE profile between
Image
Plots of selected vent fluid chemical variables vs. Mg for the <b>Monowai</b> cald...
Published: 01 December 2012
Fig. 8 Plots of selected vent fluid chemical variables vs. Mg for the Monowai caldera. Trends suggest mixing between seawater and two distinct low Mg fluids, one with near-seawater chloride and one with low chloride. The low-chloride fluids may be the result of subsea-floor phase separation
Image
Mineralogical characterization of samples from the <b>Monowai</b> volcano, as view...
Published: 01 December 2012
Fig. 9 Mineralogical characterization of samples from the Monowai volcano, as viewed by SEM. A. Natrojarosite crystals as open-space fillings (sample 26TVG02I). B. Natroalunite in SiO 2 -rich matrix (sample 26TVG01I). C, D. Close intergrowths of pyrite with natroalunite (samples 26TVG02
Journal Article
Journal: Economic Geology
Published: 01 December 2012
Economic Geology (2012) 107 (8): 1649-1668.
...., Clark, Rumble II West, Brothers, Monowai, Volcano 19, and Volcano 1), the majority (five out of six) are dominantly mafic in composition and all but one of these mafic volcanoes form moderate-size to large calderas. To date, mafic calderas have been largely ignored as hosts to sea-floor massive sulfide...
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Plots of hydrothermal plume samples from tow-yos and casts across the Monow...
Published: 01 December 2012
Fig. 7 Plots of hydrothermal plume samples from tow-yos and casts across the Monowai caldera and cone, showing the relationships between (A) depth vs. CH 4 , (B) total dissolvable metals vs. methane, and (C) depth vs. δ 3 He. Several plume samples from the Monowai cone summit plume have
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A. Total alkali silica (TAS) diagram of volcanic rocks from several Kermade...
Published: 01 December 2012
Fig. 9 A. Total alkali silica (TAS) diagram of volcanic rocks from several Kermadec arc volcanoes compared to Rumble II West. Shown for comparison are data for other volcanoes on the Kermadec arc, including Clark, Healy, Brothers, and Monowai. A = andesite, B = basalt, BA = basaltic andesite, D
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Location of Rumble II West Volcano in the southern portion of the ∼2,500-km...
Published: 01 December 2012
Fig. 1 Location of Rumble II West Volcano in the southern portion of the ∼2,500-km-long Kermadec-Tonga arc, extending NE of New Zealand toward Samoa. Also shown are other volcanic centers referred to in the text including Clark volcano, Brothers caldera, Monowai, Volcano 19, and Volcano 1. CLSC
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Light scattering sensor (LSS) and pH vs. depth for the vertical casts and t...
Published: 01 December 2012
Fig. 4 Light scattering sensor (LSS) and pH vs. depth for the vertical casts and tow-yos over the Monowai volcanic center. A. All LSS data. B. All pH data. C. Zoom to better show the caldera plume. Key features are that shallow samples from the cone (<100 m) have large shifts in LSS (up to 5 V
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Plots of hydrothermal plume samples from tow-yos and casts across the calde...
Published: 01 December 2012
to no correlation within the flank plumes or the caldera plume as the latter are considered not of hydrothermal origin (see text). Note the strong correlation between particulate and TDFe. Also note that plume samples from the Monowai cone have the most elevated TDMe concentrations, coincident with anomalously
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Silica vs. total alkalis for Kermadec arc lavas, following the rock classif...
Published: 01 December 2012
in the legend) are from Turner et al. (1997) , Haase et al. (2002 , 2006) , Ewart et al. (1998) , Smith et al. (2009) , and Todd et al. (2011) . The two different symbols for each of Monowai and Brothers represent new data (colored) and literature data (white and gray), respectively.
Image
Figure 1. Regional bathymetry of Tonga arc and adjacent Lau backarc basin s...
in > Geology
Published: 01 June 2006
—Northwestern Lau spreading center, CLSC—Central Lau spreading center, ELSC—Eastern Lau spreading center, VFR—Valu Fa Ridge, M—Monowai, R—Raoul, Mc—Macauley, C—Curtis, B—Brothers, TVZ—Taupo Volcanic Zone
Journal Article
Journal: Economic Geology
Published: 01 December 2012
Economic Geology (2012) 107 (8): 1521-1525.
...C. E. J. de Ronde; D. A. Butterfield; M. I. Leybourne This issue of Economic Geology also highlights the wide diversity of Kermadec arc hydrothermal systems, ranging from volcanic-magmatic (i.e., Monowai cone) to magmatic-hydrothermal (i.e., Brothers cone and Mussel Ridge at Monowai caldera...
FIGURES
Journal Article
Journal: Geology
Published: 01 March 2013
Geology (2013) 41 (3): 381-382.
... costs. The top of the active submarine volcano Monowai in the Kermadec Arc (north of New Zealand) rises episodically close to the water surface, changing rapidly (weeks to decades) in elevation by tens of meters, because of repeated episodes of volcano growth and rapid flank collapse ( Wright et al...
Journal Article
Journal: Geology
Published: 01 March 2013
Geology (2013) 41 (3): 355-358.
... bathymetry data sets obtained along this eruption and discuss its role in the evolution of the entire volcanic edifice. Surveys of an active submarine eruption have previously been conducted on Monowai cone, Kermadec Islands, with a frequency of 6 yr to 14 d ( Wright et al., 2008 ; Watts et al., 2012...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 December 2012
Economic Geology (2012) 107 (8): 1527-1538.
... in the legend) are from Turner et al. (1997) , Haase et al. (2002 , 2006) , Ewart et al. (1998) , Smith et al. (2009) , and Todd et al. (2011) . The two different symbols for each of Monowai and Brothers represent new data (colored) and literature data (white and gray), respectively. ...
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Journal Article
Journal: Geology
Published: 01 January 2012
Geology (2012) 40 (1): 51-54.
... the volume removed is 50% larger. We can put the NW Rota-1 landslide into context by comparing it with others documented at Monowai, another persistently active submarine volcano in the Kermadec volcanic arc. Repeated mapping there documented two major landslides over a 9 yr period ( Chadwick et al...
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