 | Murton, Bramley J., Lehrmann, Berit, Dutrieux, Adeline M., Martins, Sofia, de la Iglesia, Alba Gil, Stobbs, Iain J., Barriga, Fernando J.A.S., Bialas, Jörg, Dannowski, Anke, Vardy, Mark E., North, Laurence J., Yeo, Isobel A.L.M., Lusty, Paul A.J., Petersen, Sven (2019) Geological fate of seafloor massive sulphides at the TAG hydrothermal field (Mid-Atlantic Ridge) Ore Geology Reviews, 107. 903-925 doi:10.1016/j.oregeorev.2019.03.005 | Journal (article/letter/editorial) | | seafloor massive sulphides at the tag hydrothermal field (midatlantic ridge) Bramley J. Murton, Berit Lehrmann...seafloor massive sulphides at the tag hydrothermal field (mid-atlantic ridge), Ore Geology Reviews (2019)...SEAFLOOR MASSIVE SULPHIDES AT THE TAG 3 HYDROTHERMAL FIELD (MID-ATLANTIC RIDGE) 4 Bramley J. Murton 1*,...fbarriga@fc.ul.pt 4 GEOMAR Helmholtz Center for Ocean Research Kiel, Wischhofstrasse 1-3, 24148 ...spreading ridge. Our approach involved two 33 research cruises in the summer of 2016 to the TAG hydrothermal |  | Milinovic, Jelena, Dias, Ágata Alveirinho, Janeiro, Ana I., Pereira, Manuel F. C., Martins, Sofia, Petersen, Sven, Barriga, Fernando J. A. S. (2020) XRD Identification of Ore Minerals during Cruises: Refinement of Extraction Procedure with Sodium Acetate Buffer. Minerals, 10 (2) 160 doi:10.3390/min10020160 | Journal (article/letter/editorial) | | Portugal; mfcp@ist.utl.pt GEOMAR-Helmholtz Centre for Ocean Research Kiel, Wischhofstraße 1-3, 24148 Kiel, Germany;...recovered in the Trans-Atlantic Geotraverse (TAG) field along the Mid Atlantic Ridge (MAR). Sediments...correlation with calcite XRD reflection in selected TAG samples, and this could be applied to the preliminary...(goethite and hematite, respectively) were detected. Pyrite was the dominant hydrothermal mineral and Cu...Cu sulfides (chalcopyrite, covellite) and hydrothermal Mn oxides (birnessite and todorokite) were mineral |  | Teagle, Damon A.H, Alt, Jeffrey C, Chiba, Hitoshi, Humphris, Susan E, Halliday, Alex N (1998) Strontium and oxygen isotopic constraints on fluid mixing, alteration and mineralization in the TAG hydrothermal deposit. Chemical Geology, 149 (1) 1-24 doi:10.1016/s0009-2541(98)00030-8 | Journal (article/letter/editorial) | | mixing, alteration and mineralization in the TAG hydrothermal deposit Damon A.H. Teagle a a,) , Jeffrey...recovered from the Trans-Atlantic Geotraverse ŽTAG. hydrothermal mound during Leg 158 of the Ocean Drilling Program...mineralization within an active hydrothermal deposit. Fresh Mid-Ocean Ridge Basalt ŽMORB., with a 87Srr86...87Srr86 Sr of 0.7026, from the basement beneath the TAG mound was altered at both low and high temperatures...Pillow breccias occurring beneath the margins of the mound are locally recrystallized to chlorite by interaction |  | | Journal (article/letter/editorial) | | REE compositions of anhydrites from the TAG seafloor hydrothermal system SUSAN E. HUMPHRIS1,* and WOLFGANG...from the TAG (Trans-Atlantic Geotraverse) active hydrothermal mound (26°08=N, Mid-Atlantic Ridge) that have...patterns of REE behavior when normalized to TAG end-member hydrothermal fluid. Despite differences in REE patterns...precipitated from fluids with a similar range of hydrothermal fluid and seawater components, and all but one...indicates normalization to end-member black smoker hydrothermal fluid) and a small or no Eu anomaly (EuBS/Eu*BS |  | | 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 ®rst insights...massive sul®de (VMS) deposit on a sediment-free mid-ocean ridge. Sul®de precipitation at this site started...200-m diameter, 50-m-high pyritic mound and a silici®ed stockwork complex containing approximately 3.9 million...sea¯oor. The periodic release of high-temperature hydrothermal ¯uids at the same location for several thousand |  | | Journal (article/letter/editorial) | | subseafloor root zone of the TAG hydrothermal system, 268 N Mid-Atlantic Ridge Dionysis I. Foustoukos*, W...applicable to the Trans-Atlantic Geo-Traverse (TAG) hydrothermal system at 268 N, Mid-Atlantic Ridge. The mag...form this mineral assemblage during subseafloor hydrothermal alteration, however, requires elevated fluid...the low H2S(aq) and mFe / mCu ratios observed at TAG vent fluids are consistent with constraints imposed... Available chemical data confirm that the TAG hydrothermal system has experienced elevated fluid / rock |  | | Journal (article/letter/editorial) | | influences on concentrations of trace metals in hydrothermal fluids SIMONE METZ and JOHN H. TREFRY* Department...metals in hydrothermal solutions from the southern Juan de Fuca Ridge (SJFR) and the TAG Hydrothermal Field...Field on the Mid-Atlantic Ridge are influenced by the combined effects of source rock composition, brine–seawater...brine–seawater mixing and complex interplay among various metals and minerals deposited and remineralized...however, concentrations of Cu in 363°C fluids at the TAG site are well above values determined from seawater/basalt |  | GLYNN, S, MILLS, R, PALMER, M, PANCOST, R, SEVERMANN, S, BOYCE, A (2006) The role of prokaryotes in supergene alteration of submarine hydrothermal sulfides. Earth and Planetary Science Letters, 244 (1) 170-185 doi:10.1016/j.epsl.2006.01.065 | Journal (article/letter/editorial) | | prokaryotes in supergene alteration of submarine hydrothermal sulfides S. Glynn a,b , R.A. Mills a,⁎, M.R...c , S. Severmann d , A.J. Boyce e a School of Ocean and Earth Science, National Oceanography Centre...activity in supergene reactions within submarine hydrothermal sulfidic sediments. Data are presented for two...from the periphery of the inactive Alvin hydrothermal mound. The limit of oxygenated seawater penetration...associated with mid-ocean ridge hydrothermal systems [3] and eastern equatorial Pacific open ocean sites [4] |  | 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,⁎, Florian Häckel b, Karsten...elements Hydrothermal sulfides Laser Ablation ICP–MS VHMS a b s t r a c t Submarine hydrothermal sulfide...sulfide ores occur at mid-ocean ridges, intra-oceanic arcs and in back-arc basins associated with host rocks...submarine hydrothermal vent fields 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 |  | | Report (issue) | | Kasahara, Pavel Izbekov, and Johnathan Lees (Eds.) 173 Ocean Circulation: Mechanisms and Impacts—Past 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 Ocean–Lower Atmosphere Processes Corinne Le Quèrè and |  | | Journal (article/letter/editorial) | | Smoker Smoke at the TAG and Broken Spur Hydrothermal Fields, Mid-Atlantic Ridge V. Yu. Rusakov Vernadsky...presents newly obtained data on the fluxes of hydrothermal–sedimentary material collected with sedimentation...the bottoms of black smokers at the TAG and Broken Spur hydrothermal fields and reports the results of...“mature” (having an age of 40–50 ka) hydrothermal spring at the TAG field contains 40% Fe hydroxides, in contrast...to the material of a spring at the Broken Spur field (age <1000 yr) whose material is dominated by sulfides |  | Petersen, S., Kuhn, K., Kuhn, T., Augustin, N., Hékinian, R., Franz, L., Borowski, C. (2009) The geological setting of the ultramafic-hosted Logatchev hydrothermal field (14°45′N, Mid-Atlantic Ridge) and its influence on massive sulfide formation. Lithos, 112 (1) 40-56 doi:10.1016/j.lithos.2009.02.008 | Journal (article/letter/editorial) | | ultramafic-hosted Logatchev hydrothermal field (14°45′N, Mid-Atlantic Ridge) and its influence on massive...2009 Keywords: Ultramafic-hosted Hydrothermal system Mid-Atlantic Ridge Massive sulfides Petrology a b...The Logatchev hydrothermal field (14°45′N on the MAR) is one of a few submarine hydrothermal systems associated...previously been linked to detachment faulting and core complex formation. Geological mapping during various ROV...shallow drilling reveal a structural control of hydrothermal activity as well as its location in a debris |  | 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 fluid–oxidized 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) | | seafloor deposition and diagenetic maturation of hydrothermal plume-derived silica-iron gels Received: 28...abundant near VMS deposits. The jaspers contain hematite-rich laminae showing soft-sediment deformation...surrounded by cryptocrystalline hematite and filled with quartz and euhedral hematite; (3) small (up to 10 lm)...lm) spherules composed of cryptocrystalline hematite and silica; and (4) up to 50 lm silica spherules with...chalcedony, quartz, carbonate and cryptocrystalline hematite and/or goethite forming botryoidal masses and |  | 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) | | Low-Temperature Hydrothermal Deposits in the Rift Zone of the Mid-Atlantic Ridge Yu. A. Bogdanova,...data on the low-temperature hydrothermal deposits of the Snake Pit, TAG, Broken Spur, and Lucky Strike...Strike fields in the rift valley of the Mid-Atlantic Ridge (MAR) obtained during the 47th cruise of the R/V...diffuse flows of hydrothermal solutions and the material precipitated from hydrothermal plumes. Electron...identify protoferrihydrite, ferrihydrite, goethite, hematite, Mn-feroxyhyte, and Fe-vernadite. Fe-free vernadite |  | Martin, Andrew J., Keith, Manuel, Parvaz, Daniel B., McDonald, Iain, Boyce, Adrian J., McFall, Katie A., Jenkin, Gawen R.T., Strauss, Harald, MacLeod, Christopher J. (2020) Effects of magmatic volatile influx in mafic VMS hydrothermal systems: Evidence from the Troodos ophiolite, Cyprus. Chemical Geology, 531. 119325 doi:10.1016/j.chemgeo.2019.119325 | Journal (article/letter/editorial) | | Effects of magmatic volatile influx in mafic VMS hydrothermal systems: evidence from the Troodos ophiolite...Effects of magmatic volatile influx in mafic VMS hydrothermal systems: evidence from the Troodos ophiolite... Effects of magmatic volatile influx in mafic VMS hydrothermal systems: evidence from the Troodos ophiolite...1Christopher J. MacLeod 1 School of Earth and Ocean Sciences, Cardiff University, UK 2 GeoZentrum...Evidence of magmatic volatile influx in mafic VMS hydrothermal systems ur The Troodos ophiolite, Cyprus is |  | | 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...oxy-hydroxide minerals including goethite and hematite as well as sulphates such as jarosite. As a result...focus on exploiting deposits associated with hydrothermal vents that have been inactive for some time |  | Charlou, J.L, Bougault, H, Appriou, P, Nelsen, T, Rona, P (1991) Different TDM/CH4 hydrothermal plume signatures: TAG site at 26°N and serpentinized ultrabasic diapir at 15°05′N on the Mid-Atlantic Ridge. Geochimica et Cosmochimica Acta, 55 (11) 3209-3222 doi:10.1016/0016-7037(91)90484-m | Journal (article/letter/editorial) | | U.S.A. + .@I Different TDM/CH4 hydrothermal plume signatures: TAG site at 26”N and serpentinized ultrabasic...ultrabasic diapir at 15’05’N on the Mid-Atlantic Ridge J. L. CHARLOU,’ H. BOUGAULT,’ P. APPRIOU,’ T. NELSEN...used to identify and compare hydrothermal plumes found above the TAG Field (26”N) and in the rift valley...intersection of the ridge axis with the 15” 20’N Fracture Zone at the Mid-Atlantic Ridge (MAR). Active hydrothermal...hydrothermal venting was confirmed at TAG, based on elevated concentrations of total dissolved Mn (TDM |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | COMMUNICATIONS IN ULTRAMAFIC-HOSTED HYDROTHERMAL THE MID-ATLANTIC RIDGE SULFIDES P.J.MURPHY L* Doartem...Sulfidesamples fromtheLogatchev hydrothermal field(14045 ' N, Mid-Atlantic Ridge),whichoccurs on an ultramafic...conducted by Bogdanov et al. (1995).Samchevhydrothermal field,whichareunusual fora number of ples for the present...Irina and Anna-Louise vents), which TheLogatchev hydrothermal fieldislocated onultramafic form depressions...tures which are more common elsewhere (e.g., TAG mound, Mid-AtlanticRidge.Basaltic lavaflowshavenot beenreHumphris |  | | Journal (article/letter/editorial) | | sea-floor gels that were deposited by fallout from hydrothermal plumes in silica-rich seawater, in which plume-derived...smoker venting alternates or overlaps with sulfide mound-forming black smoker venting. Ratios of Al, Sc,...negative Ce anomalies) reflect variable mixing of hydrothermal solutions with oxic seawater at dilution ratios...the oxidation of hydrothermal Fe2+ within the variably seawater-diluted hydrothermal plume(s). Thick jasper...Si-Fe particles derived from As- and Sb-rich hydrothermal fluids prior to extensive mixing with seawater |  | Dekov, Vesselin M., Garbe-Schönberg, Dieter, Kamenov, George D., Guéguen, Bleuenn, Bayon, Germain, Bindi, Luca, Asael, Dan, Fouquet, Yves (2018) Redox changes in a seafloor hydrothermal system recorded in hematite-chalcopyrite chimneys. Chemical Geology, 483. 351-371 doi:10.1016/j.chemgeo.2018.02.041 | Journal (article/letter/editorial) | | research article Redox changes in a seafloor hydrothermal system recorded in hematitechalcopyrite chimneys...Chalcopyrite Chimney Hematite Hydrothermal Redox Hydrothermal chimneys composed of hematite and chalcopyrite...Irina II vent site (Logatchev hydrothermal field, Mid-Atlantic Ridge). Hematite and chalcopyrite form layers...the chimney wall. The repeating alternation of hematite and chalcopyrite implies for repeating changes...diagrams of hematite and chalcopyrite at the physico-chemical conditions of the Irina II hydrothermal site showed |  | | Journal (article/letter/editorial) | | 421 218 65406 MA ABSTRACT D Circulation of hydrothermal fluids within the oceanic crust is a major factor...massive sulfide have been reported along the mid-ocean ridges, showing AC CE effective mass transfer...at 250°C and 400 bars that placed an H2S-rich hydrothermal fluid into contact with four different rock...resulting in NU andradite formation. The stability field of sulfide in the H2-H2S activity plane is diminished...CE activities plot in the pyrrhotite stability field of the Fe-O-S phase diagram. We suggest that the |  | | Journal (article/letter/editorial) | | elsevier.com/locate/chemgeo Discriminating hydrothermal and terrigenous clays in the Okinawa Trough...University, Shanghai 20092, China Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5...Böttcher Keywords: Okinawa Trough East China Sea Hydrothermal clay Terrigenous clay Geochemistry Mineralogy...terrigenous sediment and ubiquitous volcanic–hydrothermal activities. In this study, the clays collected...examine different clay origins. The hydrothermal field in the mid-OT is dominated by Mg-rich chlorite |
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