 | | Journal (article/letter/editorial) | | HYDROTHERMAL PRECIPITATES FROM THE EASTERN MANUS BASIN, PAPUA NEW GUINEA ROGER MOSS§ AND STEVEN D. SCOTT Scotiabank...fields currently known in the Manus back-arc basin of Papua New Guinea are enriched in gold. Samples...and Susu Knolls hydrothermal fields in eastern Manus Basin contain up to 56.8 ppm gold, and average 11.3...sulfur is indicated for the gold-rich eastern Manus Basin precipitates by the sulfide assemblages, the...seafloor, massive sulfide, PACMANUS vent field, Papua New Guinea. SOMMAIRE Trois des cinq champs d’évents |  | | Journal (article/letter/editorial) | | very small area of 60 by 100 m (Tutum Bay, Papua New Guinea), discharges around 5.5×102 kg As annually... back-arc basins (BAB) such as the Lau Basin and Manus Basin, sediment-hosted basins C. Breuer, T....Chemical Geology 348 (2013) 2–14 such as the Guaymas Basin and island arcs (IA) such as the Aeolian arc (Fig...shallow-water hydrothermal systems like Tutum Bay (Papua New Guinea), Milos (Greece), Bahía Concepción (Mexico)...(Mexico) and several other locations sparked new interest in As cycling in the oceans and renewed interest |  | Bogdanov, Yu. A., Vikent’ev, I. V., Lein, A. Yu., Bogdanova, O. Yu., Sagalevich, A. M., Sivtsov, A. V. (2008) Low-temperature hydrothermal deposits in the rift zone of the Mid-Atlantic Ridge. Geology of Ore Deposits, 50 (2) 119-134 doi:10.1134/s1075701508020037 | Journal (article/letter/editorial) | | 119017 Russia Received February 7, 2007 Abstract—New data on the low-temperature hydrothermal deposits...study allowed us to identify protoferrihydrite, ferrihydrite, goethite, hematite, Mn-feroxyhyte, and Fe-vernadite...of protoferrihydrite particles replaced with ferrihydrite, nontronite, and goethite along with particles...associated sulfide occurrences. In this paper, we present new information on the low-temperature hydrothermal deposits...submersibles (Sagalevich et al., 2005). As a result, new data were obtained for virtually all active hydrothermal |  | | Journal (article/letter/editorial) | | sequestration 74(24): 6996 geochemical kinetics 74(24): 6996 new mineral formation 74(24): 6996 reactive mineral surface...anhydrite magmatic volatile degassing 74(19): 5514 Manus Basin 74(19): 5514 rare earth elements 74(19): 5514...4140 Voronoi diagram 74(14): 4140 aragonite deep-sea corals 74(21): 6014 neodymium concentrations 74(21):...enhanced solubility 74(18): 5171 EXAFS 74(19): 5574 ferrihydrite 74(19): 5574 iron oxides 74(18): 5171 low molecular...2257 arsenic adsorption kinetic 74(4): 1238 ferrihydrite transformation 74(3): 980 goethite 74(12): 3367 |  | Sun, Zhilei, Zhou, Huaiyang, Yang, Qunhui, Sun, Zhixue, Bao, Shenxu, Yao, Huiqiang (2011) Hydrothermal Fe–Si–Mn oxide deposits from the Central and South Valu Fa Ridge, Lau Basin. Applied Geochemistry, 26 (7) 1192-1204 doi:10.1016/j.apgeochem.2011.04.008 | Journal (article/letter/editorial) | | deposits from the Central and South Valu Fa Ridge, Lau Basin Zhilei Sun a,b,c, Huaiyang Zhou a,d,⇑, Qunhui Yang...the Central and Southern Valu Fa Ridge (VFR), Lau Basin were examined to explain the source origin and formation...2. Geological setting The Lau Basin is a wedge-shaped, back-arc basin located in the SW Pacific Ocean...southwards (Hawkins, 1995). Currently, the Lau Basin is composed of three major active spreading ridges:...an active, back-arc spreading center of the Lau Basin (Morton and Sleep, 1985) and is spreading at a rate |  | | Journal (article/letter/editorial) | | B. JAHNKE: Calcium carbonate dissolution in deep sea sediments: Reconciling microelectrode, pore water...geochemistry of Late Devonian reefal carbonates, Canning Basin, Western Australia: Configuration of a seawater...apatite and water from 5°C to 60°C: A potential new thermometer for aquatic paleoenvironments . . . ...fractionation in the water column of a euxinic marine basin . . . . . . . . . . . . . . . . . . . . . . . ....porphyrins of a Lower Toarcian shale of the Paris basin . . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | reactivity of the dolomite (104)– water interface: New insights into the dolomite problem . . . . . . ....M. IMBODEN, R. KIPFER : Field experiments yield new insights into gas exchange and excess air formation...PHO: Chemical weathering in the Hong (Red) River basin: Rates of silicate weathering and their controlling...submarine volcanic glasses from the eastern manus basin . . . . . . . . . . . . . . . . . . . . . . ...characterization of the nature of adsorbed arsenate on ferrihydrite . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | above the abyssal plain to a depth about 960 m below sea surface (Klein, 1982). It is likely that Loihi began...Caplan-Auerbach and Duennebier, 2001). Between 1996 and 1997, new hydrothermal vents were discovered (Fig. 1) (1) on...the mats and are composed of nanoparticulate ferrihydrite (Toner et al., 2012) and organic polymers (Chan...also selected from former cruises using the deep-sea submersible Pisces V (Emerson and Moyer, 2002). Details...French Research Institute for Exploitation of the Sea (IFREMER). Indium solution was added before analysis |  | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . 809 R. E. ZEEBE: A new value for the stable oxygen isotope fractionation...biogenic sulfidization and transformation of ferrihydrite . . . . . . . . . . . . . . . . . . . . . ....ANDERSEN: Phosphorus recycling and burial in Baltic Sea sediments with contrasting redox conditions . . ...oxygen isotope analysis of biogenic silica and a new oxygen isotope calibration of modern diatoms in freshwater...release during the last deglaciation from Marmara Sea sediments . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | 1991); and in carbonate-hosted deposits at Franklin, New Jersey, (Dunn 1995) and in Sweden and Norway (Långban-type...continental hydrothermal systems such as Waiotapu, New Zealand (Hedenquist 1983) and Uncia, Bolivia (White...either from seawater (hydrogenetic) or from sub-sea- 1075 38#5-oct.00-2188-03 1090 floor sources (exhalative)...of Bonatti et al. (1972) was developed for deep-sea deposits, where rates of sedimentation are low. The...latter diagrams, again, were developed for deep-sea environments, and reflect the competition between |  | Olatunde Popoola, Samuel, Han, Xiqiu, Wang, Yejian, Qiu, Zhongyan, Ye, Ying (2018) Geochemical Investigations of Fe-Si-Mn Oxyhydroxides Deposits in Wocan Hydrothermal Field on the Slow-Spreading Carlsberg Ridge, Indian Ocean: Constraints on Their Types and Origin. Minerals, 9 (1) 19 doi:10.3390/min9010019 | Journal (article/letter/editorial) | | Fe-oxyhydroxide deposits in the Lau Basin and Eastern Manus Basin. Studies on Fe-oxyhydroxide deposits...oxyhydroxide deposits from the Valu Fa Ridge, Lau Basin and PacMamus hydrothermal field, In-situ geochemical...Electron Probe (EPMA) are essential Eastern Manu Basin. The EPMA results of this study represent theMicroanalysis...oxyhydroxide deposits from the Valu Fa Ridge, Lau Basin and PacMamus hydrothermal field, show variable concentrations...(0.02–0.11 wt. %); SrO (Bdl-0.05 Eastern Manu Basin. The EPMA results of this study represent the average |  | | Journal (article/letter/editorial) | | attenuated total reflectance 68(8): 1807 Baltic Sea 68(14): 3125 Bangladesh 68(17): 3459 Bangladesh 68(17):...fluids 68(17): 3557 crystal growth 68(11): 2495 Dead Sea Rift Valley 68(8): 1763 density functional theory...1199 ferric oxyhydroxicarbonate 68(17): 3497 ferrihydrite 68(14): 3019 fluid inclusions 68(11): 2495 fluid...schwertmannite 68(6): 1185 schwertmannite 68(9): 2119 sea ice brines 68(8): 1749 seafloor hydrothermal alteration...2799 Fe-Mn oxides 68(15): 3171 ferrihydrite 68(12): 2639 ferrihydrite 68(15): 3217 fulvic acid 68(14): |  | Johannessen, Karen C., Vander Roost, Jan, Dahle, Håkon, Dundas, Siv H., Pedersen, Rolf B., Thorseth, Ingunn H. (2017) Environmental controls on biomineralization and Fe-mound formation in a low-temperature hydrothermal system at the Jan Mayen Vent Fields. Geochimica et Cosmochimica Acta, 202. 101-123 doi:10.1016/j.gca.2016.12.016 | Journal (article/letter/editorial) | | ultraslow-spreading Mohns Ridge in the Norwegian-Greenland Sea (Fig. 1A). This portion of the Arctic Mid-Ocean Ridge...Moeller et al. (2014) have shown that 2-line ferrihydrite is the primary Fe-phase. 3. MATERIALS AND METHODS...sequence in a 16S rRNA gene clone library from the Lau Basin hydrothermal field was assigned to the Gallionella...sequence identity to a clone obtained from a deep-sea hydrothermal field at the 21 Southern Mariana Trough...Deep of the Red Sea (Laurila et al., 2014) and iron formations from the Hamersley Basin, Western Australia |  | | Report (volume) | | Affiliated East-West Press pvt Ltd G-l/16 Ansari Road New Delhi 110 002 India (Orders: Tel (11) 327-9113 Fax...and MARK sites (1986, 1990) Mid-Atlantic Ridge: a new solution chemistry model and a mechanism for Cu/Zn...mineralization in the western Woodlark and eastern Manus basins of the western Pacific 19I KNott, R., FALLICK...relation to crustal evolution of the Lau Backarc Basin 231 SUDARIKOV, S. M., DAVYDOV,M. P., BAZELYAN...communities at shallow hydrothermal vents in the Aegean Sea 303 SUDARIKOV, S. M. & GAL~:IN, S. V. Geochemistry |  | Mloszewska, A.M., Mojzsis, S.J., Pecoits, E., Papineau, D., Dauphas, N., Konhauser, K.O. (2013) Chemical sedimentary protoliths in the >3.75Ga Nuvvuagittuq Supracrustal Belt (Québec, Canada) Gondwana Research, 23 (2) 574-594 doi:10.1016/j.gr.2012.11.005 | Journal (article/letter/editorial) | | 2008). Recently, O'Neil et al. (2011) proposed a new unit name, “Ujaraaluk”. This cummingtonite-rich rock...4280− 81 isochron +35 (revised to 4362− 54 with the new decay constant). This result is important because...precipitation of insoluble ferric oxyhydroxides (e.g., ferrihydrite) in an environment that was globally anoxic:...on the relative location of the BIF depositional basin and the hydrothermal system, as well as the age...conditions, the sorption capacity of two-line ferrihydrite (thought to be one of the precursors to the |  | | Journal (article/letter/editorial) | | extinctions [1]. In the present study we focus on a new P/Tr sample set from a locality in Lusitaniadalen...report four binding environments, two of which are new, obtained using Extended X-ray Absorption Fine Structure...open to the atmosphere and exposed to light. One new environment appeared at 60 and 350 ppm as multinuclear...most 15% containing sulfur. The results provide new evidence for a continuum description of Hg(II)complexation...volcanoes along the southern margin of the Junggar Basin R. NAKADA1*, Y. TAKAHASHI1, U. TSUNOGAI2, G. ZHENG3 |  | Escoube, Raphaelle, Rouxel, Olivier J., Edwards, Katrina, Glazer, Brian, Donard, Olivier F.X. (2015) Coupled Ge/Si and Ge isotope ratios as geochemical tracers of seafloor hydrothermal systems: Case studies at Loihi Seamount and East Pacific Rise 9°50′N. Geochimica et Cosmochimica Acta, 167. 93-112 doi:10.1016/j.gca.2015.06.025 | Journal (article/letter/editorial) | | fractionation factor between Fe-oxyhydroxide (ferrihydrite) and dissolved Ge in the fluid of 2.0 ± 0.6&... Ge isotope ratios (d74/70Ge) have been used as new geochemical tracers of Ge sources and behavior in...abyssal plain to a depth about 960 meters below sea level (mbsl) (Fig. 1). The vent fluids at Loihi are...et al., 2013) with a mineralogy that includes ferrihydrite-like phases with short-range structural order...which has been estimated at around 2.5& using deep-sea sponge values (Rouxel et al., 2006). Vent fluids from |  | Rajabzadeh, Mohammad Ali, Haddad, Fatemeh, Polgári, Márta, Fintor, Krisztián, Walter, Heléna, Molnár, Zsombor, Gyollai, Ildikó (2017) Investigation on the role of microorganisms in manganese mineralization from Abadeh-Tashk area, Fars Province, southwestern Iran by using petrographic and geochemical data. Ore Geology Reviews, 80. 229-249 doi:10.1016/j.oregeorev.2016.06.035 | Journal (article/letter/editorial) | | perfectly preserved, indicating a pristine deep-sea biogenic zone with low deformation. Besides the microfossils...oxyhydroxide minerals, such as lepidocrocite and ferrihydrite, which are typical microbially mediated minerals...Fe-oxidizing microbes (FeOB) (Ehrlich, 2002). The ferrihydrite stabilization is accompanied by silica segregation...(i) Hydrothermal source (ii) Segregation via ferrihydrite transformation into more stable minerals (iii)...The first mineral product is poorly crystalline ferrihydrite (amorphous, also detected by XRD), which transforms |  | Gäb, Fabian, Ballhaus, Chris, Siemens, Jan, Heuser, Alexander, Lissner, Moritz, Geisler, Thorsten, Garbe-Schönberg, Dieter (2017) Siderite cannot be used as CO2 sensor for Archaean atmospheres. Geochimica et Cosmochimica Acta, 214. 209-225 doi:10.1016/j.gca.2017.07.027 | Journal (article/letter/editorial) | | seawater for these experiments came from the Aegean Sea near the island of Sifnos. Its salinity was determined...proximal to the vent in the form of sulfide and ferrihydrite while Mn2+ is dispersed over wider lateral distances...complexation of ferrous iron and carbonate on ferrihydrite and the mobilization of arsenic. Environ. Sci...ocean pH. Nature 425, 365. Canfield D.E. (1998) A new model for Proterozoic ocean chemistry. Nature 396...Carbonate Platform and Basin Development 44, 79 - 106 Grotzinger J.P., Kasting J.F. (1993) New constraints on |  | Sun, Zhilei, Wu, Nengyou, Cao, Hong, Xu, Cuiling, Liu, Liping, Yin, Xijie, Zhang, Xianrong, Geng, Wei, Zhang, Xilin (2019) Hydrothermal metal supplies enhance the benthic methane filter in oceans: An example from the Okinawa Trough. Chemical Geology, 525. 190-209 doi:10.1016/j.chemgeo.2019.07.025 | Journal (article/letter/editorial) | | the Okinawa Trough (OT), a semi-enclosed back-arc basin with cold seeps and hydrothermal activities coexist...coupled to the reduction of iron oxide (e.g., ferrihydrite) and manganese oxide (e.g., MnO2) are performed...experiment on the methane-seep sediment of the Eel River Basin. Sivan et al. (2014) proposed that MA iron reduction...showed that methane produced in PT E Bothnian Sea sediments was oxidized in distinct zones of iron-...2016; Egger et al., 2016, 2017). As a result, a new wave of studies on metal SC electronic receptor |  | | Journal (article/letter/editorial) | | crystals, olivine, sulfides, Ti-rich magnetite, and a new mineral of the rhoenite group. To infer the origin...crystalline silica materials in the western Hellas Basin (Bandfield et al., 2013); carbonates (Ehlmann et...meteorites called nakhlites (Treiman, 2005) and contains new evidence for martian clay minerals. Nakhla is classified...Changela and Bridges, 2011). The discovery of a new mineral of the rhoenite group is also reported here...its peculiar nanoscale textures, together with the new mineral phase of rhoenite and the Al-rich clinopyroxene |  | | Journal (article/letter/editorial) | | Anoxic Event (OAE) Ia, ‘Goguel’, in the Vocontian Basin by geochemical and lithological approach MINESHI...shellfish, and especially in high trophic level fish and sea mammals through the aquatic food web. Most human...obtained at the Les Sauzeries in the Vocontian Basin, southeast France, was examined for understanding...high transmission even at high mass resolution. The new developments include: 1) A prototype of cold stage...biological membranes or coatings. 4) Two new software features in the new control software under PC/Microsoft |  | | Journal (article/letter/editorial) | | Advanced argillic alteration at the Desmos caldera, Manus Basin W. BACH1*, D. NIEDERMEIER1, D. SCHWANDER1 2 AND...slope of the Desmos caldera in the Manus Basin, Papua New Guinea, has been associated with venting of...2006 from water depths around 1930 meters below sea level. Fluids and rocks were comprehensively analyzed...303–315. [2] Andersen D.J. & Lindsley D.H. (1985) New (and final) models for the Ti-magnetite/ilmenite...the GAR-01 carbon isotope record and the Cariaco Basin Ti (%) record [2] suggests that northern Iberia |  | | Journal (article/letter/editorial) | | serpentinites Hydrothermal systems in the eastern Manus Basin: Effects of phase separation and fluid mixing...modern analogues for VHMS deposits. The eastern Manus Basin reveals variable basement composition, ranging...2006, hydrothermal activity within the eastern Manus Basin was investigated using a combination of mapping...discovered vent fields were mapped and sampled, and a new very active field, Fenway, was located. The core...felsic-hosted hydrothermal systems in the eastern Manus Basin exhibit great compositional variability within |  | | Journal (article/letter/editorial) | | for identification of marine fish stocks. Thus, a new project on the stock structure of Pacific sardine...Re-Os isotope system is such a recently developed new geochemical technique, which can serve these purposes...role of minerals in petroleum generation, present new data that address the question and discuss the implications...gas (C1 – C4) and gas to methane with increasing basin temperatures. It has three serious flaws. First...fluids by H2S, it also results in the generation of new sulfur bearing organic compounds. Reference Worden |
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