 | | Journal (article/letter/editorial) | | ferrosic hydroxides: the example of Franklin Seamount, Western Woodlark Basin, Papua New Guinea T. D. Boyd{...mid-ocean spreading centers. At Franklin Seamount located near the western extremity of Woodlark Basin...of primary ferric oxyhydroxides (two-XRD-line ferrihydrite) may have occurred directly from the fluid,...their growth. The processes described at Franklin Seamount provide insight into the formation of other...found in areas of volcanic activity such as at mid-ocean and back-arc spreading centers and on intraplate |  | 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) | | 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...low-temperature hydrothermal deposits: (a) bacteria-like ferrihydrite particles, magn. 30000; (c) aggregate of nontronite...crystallized Fe-protophase are detected sporadically. Ferrihydrite is a product of GEOLOGY OF ORE DEPOSITS Vol...display strong basic hk0 reflections, whereas ferrihydrite additionally contains hkl reflections in electronograms |  | | Journal (article/letter/editorial) | | Heavy Metal Cations by Low-Temperature Deposits of Pacific Hydrothermal Fields G. V. Novikova, I. V. Vikent’evb*...differentiation of metal ions during mineral formation in the ocean. The ion exchange properties of many natural compounds...sedimentary sequence and underlying rocks. In the ocean, sorption proceeds relatively intensely, particularly...of the Juan de Fuca hydrothermal field (Axial Seamount) during Cruise 12 of the R/V Akademik Mstislav...submersible in the active low-temperature field of Franklin Seamount during Cruise 21 of the same research vessel |  | Sun, Z., Zhou, H., Glasby, G. P., Sun, Z., Yang, Q., Yin, X., Li, J. (2013) Mineralogical characterization and formation of Fe-Si oxyhydroxide deposits from modern seafloor hydrothermal vents. American Mineralogist, 98 (1) 85-97 doi:10.2138/am.2013.4147 | Journal (article/letter/editorial) | | Marine Geology, 266071, Qingdao, China 3 School of Ocean and Earth Sciences, Tongji University, Shanghai...from hydrothermal fields of the Valu Fa Ridge, Lau Basin, especially the role that the neutrophilic Fe-oxidizing...triggering precipitation of Fe-oxyhydroxide (ferrihydrite) and construction of a loose network of Fe-rich...incorporation of Si into the ferrihydrite structure and its adsorption on the ferrihydrite surface, the modern...and Fe-rich layers may be absent in the Archean ocean and that alternating bands in BIFs represent a diagenetic |  | | Journal (article/letter/editorial) | | Hydrothermal phase stabilization of 2-line ferrihydrite by bacteria C.B. Kennedy1, S.D. Scott, F.G....August 2004 Abstract Poorly ordered 2-line ferrihydrite deposits from the caldera of Axial Volcano,...filaments encrusted with nanoparticulate ferrihydrite. Ferrihydrite formed in the absence of bacteria can...revealed that a natural sample of bacteriogenic ferrihydrite from Axial Volcano did not undergo a phase transition...transition, whereas synthetic ferrihydrite, absent of bacteria, transformed to hematite after 2 days |  | Binns, R. A., Scott, Steven D., Bogdanov, Y. A., Lisitzin, A. P., Gordeev, V. V., Gurvich, E. G., Finlayson, E. J., Boyd, T., Dotter, L. E., Wheller, G. E., Muravyev, K. G. (1993) Hydrothermal oxide and gold-rich sulfate deposits of Franklin Seamount, western Woodlark Basin, Papua New Guinea. Economic Geology, 88 (8) 2122-2153 doi:10.2113/gsecongeo.88.8.2122 | Journal (article/letter/editorial) | | extentarewidelydistributedat a '2,143-to 2,366-mdepthonand near Franklin Seamount.Franklin is a youngsubmarinebasalticandesitevolcanowith...(PapuaNew spreading beneath Guinea-Australia-Canada-Woodlark; Binns et al., the Woodlarkaxisis now beingsubducted...sevenlongduration dives in the western Woodlark basin, four climbed Franklin Seamount from different directions ...Dobu Seamountin ther an interarc nor a back-arc basin. Rather, its of microplaterotathefarwest(Fig.2)...sea-floorspreading, Geologyof Franklin Seamount basaltsandFe-Ti andesires of midoceanridgebasalt Franklin Seamountrises |  | | Journal (article/letter/editorial) | | Morphogenetic Types of Ferromanganese Deposits in the World Ocean O. Yu. Bogdanovaa, A. I. Gorshkovb, G. V. Novikova...types have been found and studied in the World Ocean: nodules, micronodules, Cobearing crusts, crustlike...oceanic water in Fe from the Pacific to the Indian and then the Atlantic Ocean. The practical interest in...lepidocrocite (γ-FeOOH). Hematite (Fe2O3) and ferrihydrite (2.5Fe2O3 · 4.5H2é) should be noted as well...1. Location of the studied FMDs in the World Ocean Ocean FMD type Nodules and micronodules Sedimentation |  | | Journal (article/letter/editorial) | | and precipitates? 61°30’ 0 1000km Atlantic Ocean Dominica Caribbean Sea Portsmouth 15°30’ Diablotins...only two active island arc systems in the Atlantic Ocean. The Lesser Antilles are a double island-arc system...for vent waters compared to Vienna Standard Mean Ocean Water (VSMOW) show a mixing trend between meteorically...and sediments. hydrous ferric oxide (HFO or ferrihydrite) (e.g., Janney et al., 2000; Pichler et al....precipitates confirmed the presence of two-line ferrihydrite (Fig. 7). The high concentration of Si in the |  | | Journal (article/letter/editorial) | | found along volcanically active portions of the mid-ocean ridges and on hydrogenetic deposits formed in deep...high-temperature hydrothermal systems along mid-ocean ridges and in deep back-arc basins. FeŽIII. oxyhydroxides...water, low temperature hydrothermal systems in seamount and island-arc environments ŽMalahoff et al.,...precipitates are hematite, goethite, lepidocrocite, ferrihydrite and protoferrihydrite, and their preferential...that give only two reflections Ž2.5 ˚ . and ferrihydrite for those that give five and 1.5 A ˚ .. They |  | Canet, Carles, Prol-Ledesma, Rosa María, Proenza, Joaquín Antonio, Rubio-Ramos, Marco Antonio, Forrest, Matthew J., Torres-Vera, Marco Antonio, Rodríguez-Díaz, Augusto Antonio (2005) Mn–Ba–Hg mineralization at shallow submarine hydrothermal vents in Bahía Concepción, Baja California Sur, Mexico. Chemical Geology, 224 (1) 96-112 doi:10.1016/j.chemgeo.2005.07.023 | Journal (article/letter/editorial) | | are composed of poorly crystallized six-line ferrihydrite, accompanied by minor cinnabar and fine-grained...on deep-sea vent systems, usually related to mid-ocean ridges and backarc oceanic basins. Few shallow-water...corresponding to diffuse reflections of a sixline ferrihydrite (Rancourt et al., 2001) (Fig. 5). Some extra...Qualitative EDS analyses on the surface of the ferrihydrite aggregates reveal the presence of As in important...SEM (Fig. 6). Thus, As should be adsorbed on ferrihydrite. Pyrite was identified by SEM and optical microscopy |  | | Journal (article/letter/editorial) | | (Dunn 1991); and in carbonate-hosted deposits at Franklin, New Jersey, (Dunn 1995) and in Sweden and Norway...reported from Långban (Sweden), Hautes-Pyrénées, Franklin (Essene & Peacor 1987), and Falotta (Graeser 1995)...minerals were found at Långban, HautesPyrénées, and Franklin. Finally, Ba and Sr minerals (mostly strontian...and silica-rich Fe oxyhydroxides from the East Pacific rise (Fig. 13b). These modern samples probably... East Pacific Rise axis at 11°30' N (Hekinian et al. 1993). (2) Sample CY82–14–4, East Pacific Rise axis |  | 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) | | from the Jan Mayen Vent Fields at the Arctic Mid-Ocean 1 Ridge. Chemical analyses of low- and high-temperature...fluids heated at depth in the oceanic crust by mid-ocean ridge, hot spot and subduction-related magmatism...Fe-deposits in hydrothermally active fields along mid-ocean ridges (Alt, 1988; Juniper & Fouquet, 1988; Kennedy...ferrooxidans in low-temperature deposits at the Lōʻihi Seamount (Emerson and Moyer, 2002; Emerson et al., 2007;...Mayen Vent Fields, situated along the Arctic Mid-Ocean Ridge, comprise extensive areas covered by low-temperature |  | | Journal (article/letter/editorial) | | hydrothermal iron oxyhydroxide deposit formation at loihi seamount Olivier Rouxel, Brandy Toner, Yoan Germain, Brian...hydrothermal iron oxyhydroxide deposit formation at loihi seamount, Geochimica et Cosmochimica Acta (2017), doi:...HYDROTHERMAL IRON OXYHYDROXIDE DEPOSIT FORMATION AT LOIHI SEAMOUNT Olivier Rouxel 1,2*, Brandy Toner 3, Yoan Germain...hydrothermal vents, such as those encountered at Loihi Seamount, harbor abundant microbial communities and provide...at the seafloor. Hydrothermal activity at Loihi Seamount produces abundant microbial mats associated with |  | | Journal (article/letter/editorial) | | Reflections characteristic of poorly crystalline ferrihydrite were not unequivocally detected. This material...microbial origin in oxyhydroxide deposits from Woodlark basin has been described by Binns et al. (1993)....XRD and SEM–EDS. Reflections characteristic of ferrihydrite were not registered. Other minor phases are...silica and sulfates, as has been found at Pito seamount as an external layer on chimney fragments with...reported for lithogenic clays of the North Pacific Ocean (Piper, 1974; Fig. 11g), suggesting that the chondrite |  | | Journal (article/letter/editorial) | | interpreted setting is similar to that of the Lau basin, where high-temperature (280°–334°C) white smoker...Lambert and Sato, 1974; Large, 1977; Sangster, 1978; Franklin et al., 1981; Kalogeropoulos and Scott, 1983;...amorphous iron-rich silicates such as nontronite and ferrihydrite (cf. Hekinian et al., 1993; Iizasa 1511 1512...or perhaps supersaturated with silica prior to ocean-wide emergence of silica-consuming diatoms in the...closely resembles modern settings such as in the Lau basin (e.g., Fouquet et al., FIG. 1. Simplified geologic |  | Moeller, Kirsten, Schoenberg, Ronny, Grenne, Tor, Thorseth, Ingunn H., Drost, Kerstin, Pedersen, Rolf B. (2014) Comparison of iron isotope variations in modern and Ordovician siliceous Fe oxyhydroxide deposits. Geochimica et Cosmochimica Acta, 126. 422-440 doi:10.1016/j.gca.2013.11.018 | Journal (article/letter/editorial) | | to represent diagenetic products of siliceous ferrihydrite precursors that precipitated in a hydrothermal...deposition (e.g., Cloud, 1973). In an Archaean anoxic ocean, oxidation of Fe(II) might have occurred inorganically...Mayen vent fields, which are located at the Arctic-Ocean Ridge System, Norwegian-Greenland Sea. Hydrothermal...precipitation of distinct layers of siliceous ferrihydrite. The investigated jasper beds are derived from...matrix and have been interpreted as siliceous ferrihydrite fallout deposits from a hydrothermal plume at |  | | Journal (article/letter/editorial) | | thoroughly scavenged from the water column by Si-ferrihydrite particles, were released upon microbial Fe3+...Fe3+ reductive dissolution of Si-ferrihydrite in pore-water and finally sequestered mainly in authigenic...incipient stage of Fe2+catalyzed dissolution of Si-ferrihydrite, via a dissolution-reprecipitation pathway....pore-water after dissolution of a small amount of Si-ferrihydrite. Magnetite carries very low YREEs (ppb-level)...(Bekker et al., 2004). The oxidation of the upper ocean and atmosphere was a gradual process, as shown by |  | Dekov, Vesselin M., Petersen, Sven, Garbe-Schönberg, C.-Dieter, Kamenov, George D., Perner, Mirjam, Kuzmann, Ernő, Schmidt, Mark (2010) Fe–Si-oxyhydroxide deposits at a slow-spreading centre with thickened oceanic crust: The Lilliput hydrothermal field (9°33′S, Mid-Atlantic Ridge) Chemical Geology, 278 (3) 186-200 doi:10.1016/j.chemgeo.2010.09.012 | Journal (article/letter/editorial) | | other low-temperature hydrothermal deposits of mid-ocean ridges and intraplate volcanoes. Deposits at the...field are composed of Si-containing goethite and ferrihydrite, have very low contents of a number of transition...Introduction Seafloor hydrothermal activity at mid-ocean ridges (MOR), intraoceanic arcs and hotspots is...chemical species between the lithosphere and the ocean (Elderfield and Schultz, 1996; German and Von Damm...precipitation of minerals. The MOR chain transects all ocean basins on Earth, and the diverse geological conditions |  | | Journal (article/letter/editorial) | | was dominated by back-arc rifting in a marginal basin, probably related to an island arc outboard of the...sequences and remnants of the intervening Iapetus Ocean above Baltica in a stack of major nappe complexes...(UVM) consists of basaltic pillow lavas of back-arc basin basalt (BAB) affinity, and subordinate rhyolitic flows...the Blanco Fracture Zone, in the northeast Pacific Ocean. Younger type II quartz spherules in the jaspers...an extinct hydrothermal vent field of the Indian Ocean. Hematitic cherts of Early Cretaceous age in DSDP |  | | Report (volume) | | years of hydrothermal fluids from 13~ on the East Pacific Rise DICKSON, P., SCHULTZ,A. & WOODS,A. Preliminary...modelling of hydrothermal circulation within mid-ocean ridge sulphide structures 145 PASCOE,A. R. & CANN...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...characteristics of hydrothermal vent organisms from 9~ East Pacific Rise 329 DIXON, D. R., JOLLIVET, D. A. S. B. |  | Dodd, Matthew S., Papineau, Dominic, Grenne, Tor, Slack, John F., Rittner, Martin, Pirajno, Franco, O’Neil, Jonathan, Little, Crispin T. S. (2017) Evidence for early life in Earth’s oldest hydrothermal vent precipitates. Nature, 543 (7643) 60-64 doi:10.1038/nature21377 | Journal (article/letter/editorial) | | also been grown in diagenetic experiments using ferrihydrite and carbonaceous material40. Both NSB and ancient...albeit of debated origin42. Ferrihydrite rosettes that form today in the Lau Basin are intimately associated...carbonaceous material served as a reductant and ferrihydrite as an oxidant. Sub-spheroidal rosettes of iron...biological source for the carbon in graphite. In modern ocean sediments, accumulations of carbonaceous material...hydrothermal iron-silica-rich precipitates of the Lau Basin hydrothermal field. FEMS Microbiol. Ecol. 81, 205–216 |  | 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...constituents of modern ocean-floor deposits in various geological settings, such as mid-ocean ridges (Binns et...setting The Lau Basin is a wedge-shaped, back-arc basin located in the SW Pacific Ocean, just west of the...southwards (Hawkins, 1995). Currently, the Lau Basin is composed of three major active spreading ridges: |  | | Journal (article/letter/editorial) | | impurity-bearing ferrihydrite III. Effects of Si on the structure of 2-line ferrihydrite A. Cristina Cismasu...is well known that the physical properties of ferrihydrite are affected when formed in the presence of silicate...concentrations ranging from 5 to 40 mol% Si) on synthetic ferrihydrite precipitates using structural data derived from...effect on Fe(O,OH)x polyhedral polymerization and ferrihydrite particle growth, illustrated by the formation...crystalline, structurally disordered/strained ferrihydrite nanocrystallites. Variation in Fh unit-cell |  | 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) | | Field on the Slow-Spreading Carlsberg Ridge, Indian Ocean: Constraints on Their Types and Origin Samuel Olatunde...qiuzy@sio.org.cn (Z.Q.) Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, China;...hydrothermal sites (Carlsberg Ridge, Northwest Indian Ocean). Fe-oxyhydroxide deposits on the Wocan-1 site are...Wocan Hydrothermal Field; Carlsberg Ridge; Indian Ocean. Minerals 2019, 9, 19; doi:10.3390/min9010019 ...formed in various geologic settings such as mid-ocean ridges MOR [1–3]; back-arc spreading centers [4–7]; |  | Morgan, Rachael, Orberger, Beate, Rosière, Carlos A., Wirth, Richard, Carvalho, Camila da Mota, Bellver-Baca, M. Teresa (2013) The origin of coexisting carbonates in banded iron formations: A micro-mineralogical study of the 2.4Ga Itabira Group, Brazil. Precambrian Research, 224. 491-511 doi:10.1016/j.precamres.2012.10.013 | Journal (article/letter/editorial) | | nano- and micro-hematite. Nanometric Si-bearing ferrihydrite clusters are observed in the micritic dolomite...nodules intergrown with dolomite. Silica in the ferrihydrite structure increases its stability up to 500...precipitation processes in a partially restricted basin (Allwood et al., 2007; Van Kranendonk et al., 2003)...X X X X X X X X Pyrite Quartz Hematite Ferrihydrite Fe-dolomite ≤2 FeO > 7 wt.% Primary precipitation...hematite and dolomite with nanometric hematite and ferrihydrite inclusions. Dolomite stylolites are visible |
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