 | Grant, Hannah L.J., Hannington, Mark D., Petersen, Sven, Frische, Matthias, Fuchs, Sebastian H. (2018) Constraints on the behavior of trace elements in the actively-forming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite. Chemical Geology, 498. 45-71 doi:10.1016/j.chemgeo.2018.08.019 | Journal (article/letter/editorial) | | trace elements in the activelyforming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite...trace elements in the actively-forming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite...trace elements in the actively-forming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite...Sebastian H. Fuchs1 GEOMAR Helmholtz Center for Ocean Research Kiel, Wischhofstrasse 1-3, 24148 Kiel,...University of Ottawa, Advanced Research RI SC Complex, 25 Templeton Street, Ottawa, K1N 6N5, Canada, |  | Fallon, Emily, Frische, Matthias, Petersen, Sven, Brooker, Richard, Scott, Thomas (2019) Geological, Mineralogical and Textural Impacts on the Distribution of Environmentally Toxic Trace Elements in Seafloor Massive Sulfide Occurrences. Minerals, 9 (3) 162 doi:10.3390/min9030162 | Journal (article/letter/editorial) | | them. In this study, SMS samples from seven hydrothermal fields from various tectonic settings were investigated...are incorporated into more reactive sulfosalts, galena and Fe-rich sphalerite. Thus, deposits such as...[25â29], but also the surrounding deep or coastal ocean including background fauna (soft sediment benthos)...our lack of understanding of these unique and complex ecosystems. Whilst it has been demonstrated that...[44,49], with a natural mineral ore containing complex mixtures of metals with a range of oxidation states |  | | Journal (article/letter/editorial) | | presently forming VMS deposit: TAG hydrothermal mound, Mid-Atlantic Ridge, 26°°N Received: 16 November...drilling of the active TAG hydrothermal mound at 26°N on the Mid-Atlantic Ridge provided the ÂŽrst insights...massive sulÂŽde (VMS) deposit on a sediment-free mid-ocean ridge. SulÂŽde precipitation at this site started...200-m diameter, 50-m-high pyritic mound and a siliciÂŽed stockwork complex containing approximately 3.9 million...seaÂŻoor. The periodic release of high-temperature hydrothermal ÂŻuids at the same location for several thousand |  | | Journal (article/letter/editorial) | | Material from the Lokiâs Castle Hydrothermal Vent on the Mohnâs Ridge Ben Snook 1, *, Kristian Drivenes... Abstract: Lokiâs Castle on the Arctic Mid-Ocean Ridge (AMOR) is an area of possible seafloor massive...to characterise mineralised material from a hydrothermal vent system on the AMOR in detail for the first...pyrite and marcasite with minor pyrrhotite and galena, but multiple samples from the Lokiâs Castle contain...Keywords: Seafloor sulphides; Norway; Arctic Mid Ocean Ridge; copper; zinc; mineralogy; ICP-ES/ MS; XRD; |  | Keith, Manuel, Häckel, Florian, Haase, Karsten M., Schwarz-Schampera, Ulrich, Klemd, Reiner (2016) Trace element systematics of pyrite from submarine hydrothermal vents. Ore Geology Reviews, 72. 728-745 doi:10.1016/j.oregeorev.2015.07.012 | Journal (article/letter/editorial) | | element systematics of pyrite from submarine hydrothermal vents Manuel Keith a,â, Florian Häckel b, Karsten...elements Hydrothermal sulďŹdes Laser Ablation ICPâMS VHMS a b s t r a c t Submarine hydrothermal sulďŹde...sulďŹde ores occur at mid-ocean ridges, intra-oceanic arcs and in back-arc basins associated with host rocks...submarine hydrothermal vent ďŹelds at different plate-tectonic settings including the Indian and Mid-Atlantic...nano-particles. Bismuth is enriched in pyrite from hydrothermal systems that contain a sedimentary component |  | | Journal (article/letter/editorial) | | deposits: ancient and modern Peter M. Herzig Phil. Trans. R. Soc. Lond. A 1999 357, doi: 10.1098/rsta.1999...the article or click here To subscribe to Phil. Trans. R. Soc. Lond. A go to: http://rsta.royalsocietypublishing...modern analogues of massive sulphide deposits and hydrothermal systems are presently known at the modern sea-floor...Fuca Ridge, and in the TAG deposit at the Mid-Atlantic Ridge. Currently, mining of hydrothermal deposits...sea-floor. It was documented that the 350 ⌠C hydrothermal fluids discharging from the black smoker chimneys |  | Ogawa, Yasumasa, Shikazono, Naotatsu, Ishiyama, Daizo, Sato, Hinako, Mizuta, Toshio, Nakano, Takanori (2007) Mechanisms for anhydrite and gypsum formation in the Kuroko massive sulfideâsulfate deposits, north Japan. Mineralium Deposita, 42 (3) 219-233 doi:10.1007/s00126-006-0101-7 | Journal (article/letter/editorial) | | formed by mixing of preheated seawater with a hydrothermal solution of Sr/Ca (mM/M)=ca. 0.59â1.36 under...seawaterâcountry rock interaction and seawaterâhydrothermal solution mixing in the formation of the Kuroko...were formed from the mixing of seawater and hydrothermal solution with high Ca concentration (500â1,000...anhydrite formed by the mixing of ascending hydrothermal solution with seawater (Sato 1973; Shikazono...amounts beneath active submarine hydrothermal deposits on mid-ocean ridges and in back arc basins, for |  | | Report (issue) | | Kasahara, Pavel Izbekov, and Johnathan Lees (Eds.) 173 Ocean Circulation: Mechanisms and ImpactsâPast and Future...Ellen R. Stofan, and Thomas E. Cravens (Eds.) 177 Ocean Modeling in an Eddying Regime Matthew Hecht and...Hasumi (Eds.) 178 Magma to Microbe: Modeling Hydrothermal Processes at Oceanic Spreading Centers Robert... S. Reeve, and Lee D. Slater (Eds.) 185 Indian Ocean Biogeochemical Processes and Ecological Variability...John Gash, and Pedro Silva Dias (Eds.) 187 Surface OceanâLower Atmosphere Processes Corinne Le Quèrè and |  | | Journal (article/letter/editorial) | | Accepted Manuscript Oxidative dissolution of hydrothermal mixed-sulphide ore: An assessment of current...Brooker, T.B. Scott, Oxidative dissolution of hydrothermal mixed-sulphide ore: An assessment of current...journal pertain. Oxidative dissolution of hydrothermal mixed-sulphide ore: An assessment of current...focus on exploiting deposits associated with hydrothermal vents that have been inactive for some time...(those containing significant pyrrhotite, marcasite, galena and secondary copper sulphides) and/or environment |  | | Report (volume) | | Hydrothermal Vents and Processes Geological Society Special Publications Series Editor A.J. FLEET... GEOLOGICAL SOCIETY SPECIAL PUBLICATION NO. 87 Hydrothermal Vents and Processes EDITED BY L. M. P A R...BAKER,E. T. & KLINKHAMMER,G. Regional setting of hydrothermal activity 3 KRASNOV,S. G., POROSHINA,I. M....G. A. Geological setting of high-temperature hydrothermal activity and massive sulphide formation on fast-...ecology of the Broken Spur hydrothermal vent field: 29~ on the Mid-Atlantic Ridge 33 KRASNOV, S. G., CHERKASHEV |  | Tessalina, Svetlana G., Bourdon, Bernard, Maslennikov, Valery V., Orgeval, Jean-Jacques, Birck, Jean-Louis, Gannoun, Abdelmouhcine, Capmas, Françoise, Allègre, Claude-Jean (2008) Osmium isotope distribution within the Palaeozoic Alexandrinka seafloor hydrothermal system in the Southern Urals, Russia. Ore Geology Reviews, 33 (1) 70-80 doi:10.1016/j.oregeorev.2005.05.003 | Journal (article/letter/editorial) | | within the Palaeozoic Alexandrinka seafloor hydrothermal system in the Southern Urals, Russia Svetlana...sediments from the Alexandrinka volcanogenic hydrothermal massive sulphide deposit, Southern Urals, Russia...degrees of reduced hydrothermal fluidâoxidized seawater mixing during the hydrothermal ore-forming process...process. The Os isotopic composition of the hydrothermal sulphide chimney (187Os/188Os = 1.3) is estimated...estimated to be a minimum value of the Devonian hydrothermal fluid, which is an intermediate between initial |  | | Journal (article/letter/editorial) | | Accepted: 6 May 2019 # The Author(s) 2019 Abstract Hydrothermal fluids on the modern seafloor are important... in part reflecting strong buffering of the hydrothermal fluids by their host rocks. Geochemical reaction-path...modeling shows that in most cases the investigated hydrothermal fluids are undersaturated with gold and silver...Precipitation of gold during conductive cooling of mid-ocean ridge black smoker (MOR) fluids occurs at low temperatures...ultramafic-dominated (UM) systems, the strongly reduced hydrothermal fluids promote the deposition of gold at higher |  | Melekestseva, I. Yu., Kotlyarov, V. A., Khvorov, P. V., Ivanov, V. N., Beltenev, V. E., Dobretsova, I. G. (2010) Noble-metal mineralization in the Semenov-2 hydrothermal field (13°31â˛N), mid-atlantic ridge. Geology of Ore Deposits, 52 (8) 800-810 doi:10.1134/s1075701510080118 | Journal (article/letter/editorial) | | Mineralization in the Semenov2 Hydrothermal Field (13°31â˛N), MidAtlantic Ridge I. Yu. Melekestsevaa, V. A...copperâzinc ore of the Semenov2 hydrothermal field, a site in the Semenov hydrothermal cluster discovered in 2007...marcasite, pyrite, and covellite are auxiliary; and galena, pyrrhotite, native gold, silver telluride, barite...only basalts have been dredged from the Semenov2 field, but anomalous gold and silver concentrations suggest...were found 1.5 km westward, in the Semenov1 hydrothermal field. Mineral assemblage and morphology of gold |  | Iizasa, Kokichi, Asada, Akira, Mizuno, Katsunori, Katase, Fuyuki, Lee, Sangkyun, Kojima, Mitsuhiro, Ogawa, Nobuhiro (2019) Native gold and gold-rich sulfide deposits in a submarine basaltic caldera, Higashi-Aogashima hydrothermal field, Izu-Ogasawara frontal arc, Japan. Mineralium Deposita, 54 (1) 117-132 doi:10.1007/s00126-018-0808-2 | Journal (article/letter/editorial) | | submarine basaltic caldera, Higashi-Aogashima hydrothermal field, Izu-Ogasawara frontal arc, Japan Kokichi...03, n = 15) were discovered in 2015 in active hydrothermal fields at a water depth of 760 m in a basalt-dominated...concretions, and metalliferous sediments from a sulfide mound (40 m across and 20 m high) with up to 30-m-high...Au-bearing hydrothermal fluids circulating in and/or beneath the unconsolidated sulfide mound deposits...interpreted to have formed by low-temperature hydrothermal activity, perhaps genetically different from |  | Badrzadeh, Zahra, Barrett, Timothy J., Peter, Jan M., Gimeno, Domingo, Sabzehei, Mossaieb, Aghazadeh, Mehraj (2011) Geology, mineralogy, and sulfur isotope geochemistry of the Sargaz CuâZn volcanogenic massive sulfide deposit, SanandajâSirjan Zone, Iran. Mineralium Deposita, 46 (8) 905-923 doi:10.1007/s00126-011-0357-4 | Journal (article/letter/editorial) | | chloriteâquartzâpyrite pesudobreccia. Footwall hydrothermal alteration extends at least 70â80 m below the...represent low-temperature hydrothermal precipitates of the evolving hydrothermal system. Based on mineral...relationships, the growth history of the Sargaz deposit is complex and includes: (1) early precipitation of sulfides...sulfide mound followed by its subsequent dissolution, formation of breccia textures, and mound clasts...coarse-grained pyrite, sphalerite, tetrahedriteâtennantite, galena and barite; (3) replacement of pre-existing sulfides |  | Bailie, Russell, Gutzmer, Jens, Strauss, Harald, StĂźeken, Eva, McClung, Craig (2010) Sulfur isotope characteristics of metamorphosed ZnâCu volcanogenic massive sulfides in the Areachap Group, Northern Cape Province, South Africa. Mineralium Deposita, 45 (5) 481-496 doi:10.1007/s00126-010-0285-8 | Journal (article/letter/editorial) | | associated with modern volcanic arcs and unsedimented mid-ocean ridges. It is thus concluded that profound recrystallization...and magnetite occur in minor amounts (Fig. 5). Galena and other sulfides occur only as trace minerals...particularly in recrystallized phases such as sphalerite, galena, chalcopyrite, and pyrrhotite, but less so in more...5) are in excess of temperatures recorded in hydrothermal vent systems on the sea floor (Galley et al...metamorphism and that the stockwork (and vent complex) sulfides of the Bathurst Mining Camp have consistently |  | | Journal (article/letter/editorial) | | counterparts on the modern seafloor and other submarine hydrothermal vents. Black smoker vent fluids and seafloor...microorganisms with sulfide chimneys in modern deep-sea hydrothermal vents and younger ophiolites has sparked speculation...microfossils within black-smoker hydrothermal chimneys indicates that hydrothermal activity around sea-floor...Introduction and geological setting Active submarine hydrothermal vent systems and black smoker chimneys have...Rona and Scott, 1993, Scott, 2002). Deep-sea hydrothermal vents host the most primitive thermophyllic |  | Grant, Hannah L.J., Hannington, Mark D., HardardĂłttir, VigdĂs, Fuchs, Sebastian H., Schumann, Dirk (2020) Trace metal distributions in sulfide scales of the seawater-dominated Reykjanes geothermal system: Constraints on sub-seafloor hydrothermal mineralizing processes and metal fluxes. Ore Geology Reviews, 116. 103145 doi:10.1016/j.oregeorev.2019.103145 | Journal (article/letter/editorial) | | geothermal system: Constraints on sub-seafloor hydrothermal mineralizing processes and metal fluxes Hannah...geothermal system: Constraints on sub-seafloor hydrothermal mineralizing processes and metal fluxes, Ore...geothermal system: Constraints on sub-seafloor hydrothermal mineralizing processes and metal fluxes Hannah...and Dirk Schumann4 1GEOMAR, Helmholtz Center for Ocean Research Kiel, Wischhofstrasse 1-3, D- 24148 Kiel...of Ottawa, 25 Templeton St., Advanced Research Complex, Ottawa, Canada, K1N 6N5 3Iceland 4Fibics GeoSurvey |  | Layton-Matthews, D., Peter, J. M., Scott, S. D., Leybourne, M. I. (2008) Distribution, Mineralogy, and Geochemistry of Selenium in Felsic Volcanic-Hosted Massive Sulfide Deposits of the Finlayson Lake District, Yukon Territory, Canada. Economic Geology, 103 (1) 61-88 doi:10.2113/gsecongeo.103.1.61 | Journal (article/letter/editorial) | | reduction to H2Se, and subsequent entrainment into hydrothermal ore fluid. However, estimates for the Kudz Ze...studies have modeled the behavior of selenium in hydrothermal ore deposits (Huston et al., 1995a, b; Simon...aqueous behavior of Se at high temperatures. In the mid 1990s, three polymetallic VHMS deposits of potential...Corp., pers. commun., 2004). This study presents field, petrographic, bulk geochemical, and mineral chemical...Kudz Ze Kayah deposits and in modern sea-floor hydrothermal analogs. First-order estimates based on volumetric |  | | Journal (article/letter/editorial) | | in subaqueous environments from circulating hydrothermal fluids heated by volcanic activity. These deposits...rocks, the temperature and composition of the hydrothermal fluids NU and the redox state of the depositional...fluids and the redox state at the seafloor. Hydrothermal fluids with salinities less than twice that...oxic oceanic environments, typically formed small mound and chimney complexes, unless they were rapidly...self-induced by the exhalation of saline and reducing hydrothermal fluids that ponded in bathymetric depressions |  | Safina, Nataliya P., Melekestseva, Irina Yu., Nimis, Paolo, Ankusheva, Nataliya N., Yuminov, Anatoly M., Kotlyarov, Vasily A., Sadykov, Sergey A. (2016) Barite from the Safâyanovka VMS deposit (Central Urals) and Semenov-1 and Semenov-3 hydrothermal sulfide fields (Mid-Atlantic Ridge): a comparative analysis of formation conditions. Mineralium Deposita, 51 (4) 491-507 doi:10.1007/s00126-015-0617-9 | Journal (article/letter/editorial) | | and Semenov-1 and Semenov-3 hydrothermal sulfide fields (Mid-Atlantic Ridge): a comparative analysis of...and Semenov-3 seafloor hydrothermal fields (mid-Atlantic Ridge). Hydrothermal barite generally occurs...relationship with the genetic types. The δ34S values of hydrothermal barite from both ancient and modern colloform...respectively. The lower δ34S (avg +19.6â°) of hydrothermal barite from the Semenov3 clastic sulfides indicates...thermochemical reduction of seawater sulfate. Hydrothermal barite from the Safâyanovka and Semenov-1 colloform |  | A. Marques, Ana Filipa, Roerdink, Desiree L., Baumberger, Tamara, de Ronde, Cornel E. J., Ditchburn, Robert G., Denny, Alden, Thorseth, Ingunn H., Okland, Ingeborg, Lilley, Marvin D., Whitehouse, Martin J., Pedersen, Rolf B. (2020) The Seven Sisters Hydrothermal System: First Record of Shallow Hybrid Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge. Minerals, 10 (5) 439 doi:10.3390/min10050439 | Journal (article/letter/editorial) | | minerals Article The Seven Sisters Hydrothermal System: First Record of Shallow Hybrid Mineralization...Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge Ana Filipa A. Marques 1,2, *, Desiree L. Roerdink...active, shallow, seafloor hydrothermal system (known as the Seven Sisters Vent Field) hosted in mafic volcaniclasts...at a mid-ocean ridge setting. The vent field is located at the southern part of the Arctic mid-ocean...mid-ocean ridge where it lies on top of a flat-topped volcano at ~130 m depth. Up to 200 ⌠C phase-separating |  | | Journal (article/letter/editorial) | | elevated Zn contents, and a hydrothermal mineral assemblage in which galena is locally an important component...local structures which allowed access to the hydrothermal fluids, which then migrated laterally along...ubiquitous pyrite; however, both chalcopyrite and galena are locally important; quartz and barite comprise...generally considered to be a fragment of Mesozoic ocean floor uplifted as a result of the collision between...rocks, considered to be the channel ways of the hydrothermal fluids for the deposition of the massive exhalative |  | | Report (issue) | | originally given at an international workshop on deep ocean mineral resources beyond the limits of national...tectonic settings at the modern seafloor including mid-ocean ridges, back-arc rifts, and seamounts. Many of...deposits consist of a black smoker complex on top of a sulphide mound which commonly is underlain by a...the hightemperature (up to 400°C) metal-rich hydrothermal seawater fluid with ambient seawater. Polymetallic...copper (chalcopyrite), zinc (sphalerite), and lead (galena) in addition to gold and silver. Extremely high |  | | Journal (article/letter/editorial) | | Sulfide Deposits, Escanaba Trough, Southern Gorda Ridge TUOMO O. TĂRMĂNEN* Institute of Geosciences, Department...the slow-spreading, southernmost segment of Gorda Ridge. These concentrations reflect the presence of primary...primary gold, formed during high-temperature hydrothermal activity in mounds and chimneys, and secondary...tellurides, Bi-Te sulfides, and bismuthinite), and galena. Larger (>2 Âľm) secondary gold grains have a porous...stage of hydrothermal venting reflect subsurface interaction between circulating hydrothermal fluids and |
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