 | 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...Other silicates were also detected (e.g., calcic plagioclase, montmorillonite, nontronite). In non-carbonated...the dominant hydrothermal mineral and Cu sulfides (chalcopyrite, covellite) and hydrothermal Mn oxides (birnessite |  | 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) | | the TAG hydrothermal field Rachel A. Mills ) , Deborah M. Wells, Stephen Roberts School of Ocean and...samples collected near an active hydrothermal site from the Mid-Atlantic Ridge and demonstrate extreme REE...crusts are formed directly from low-temperature hydrothermal fluids, channelled over 3 km from any high-temperature...high-temperature vent site. A significant hydrothermal component is observed in one Fe–Mn crust sampled. Other...range of accumulation rates depending on the hydrothermal plume input. The identification of extreme heterogeneity |  | | 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 |  | | 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) | | processes that modify massive sulphid systems after hydrothermal circulation has ceased and cold oxygen-rich...our understanding of the ‘recently’ extinct hydrothermal systems, and provide information for the potential...Barbara] at 07:58 20 June 2016 Reed, M. H. 1997. Hydrothermal alteration and its relationship to ore fluid...fluid composition, in Geochemistry of Hydrothermal Ore Deposits, (ed. H. L. Barnes), 3rd Edition, 303–366;...application to modeling hydrothermal processes, in Techniques in hydrothermal ore deposits geology, (eds |  | 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 |  | HONGO, YAYOI, OBATA, HAJIME, GAMO, TOSHITAKA, NAKASEAMA, MIWAKO, ISHIBASHI, JUNICHIRO, KONNO, UTA, SAEGUSA, SHUNSUKE, OHKUBO, SATORU, TSUNOGAI, URUMU (2007) Rare Earth Elements in the hydrothermal system at Okinawa Trough back-arc basin. GEOCHEMICAL JOURNAL, 41 (1) 1-15 doi:10.2343/geochemj.41.1 | Journal (article/letter/editorial) | | pp. 1 to 15, 2007 Rare Earth Elements in the hydrothermal system at Okinawa Trough back-arc basin Y AYOI...SAEGUSA,3 SATORU OHKUBO 3 and URUMU TSUNOGAI 3 1 Ocean Research Institute, The University of Tokyo, Japan...earth element (REE) distributions in a hydrothermal vent field at Yonaguni Knoll IV in the Okinawa Trough...variation of REE concentrations within 1000–1200 m. Hydrothermal plumes were discovered by anomalous values of...distance from the hydrothermal vent site, indicating that the dilution of hydrothermal fluid in the plume |  | | 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) | | Volcanogenic Massive Sulfides: The SuSu Knolls Hydrothermal Field, Eastern Manus Basin, Papua New Guinea ELITSA...were examined from the active SuSu Knolls hydrothermal field in the eastern Manus back-arc basin, Papua...volcaniclastic material with the addition of a hydrothermal component from the mass wasting of old oxidized...volcaniclastic sediment containing dacite fragments, Ca plagioclase, pyroxene, glass shards, cristobalite, Si-rich...volcaniclastic sediment may have originated from hydrothermal eruptions at North Su and South Su. The presentday |  | | Journal (article/letter/editorial) | | Manuscript Rare earth elements as indicators of hydrothermal processes within the East Scotia subduction... E.C., Rare earth elements as indicators of hydrothermal processes within the East Scotia subduction...pertain. Rare earth elements as indicators of hydrothermal processes within the East Scotia subduction...Connelly3, Ed C. Hathorne4 *Corresponding author 1 Ocean and Earth Science, University of Southampton Waterfront...Southampton, SO14 3ZH, UK 4 GEOMAR, Helmholtz Centre for Ocean Research, Kiel, Germany 1 Abstract The East Scotia |  | | 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 |  | Douville, Eric, Bienvenu, Philippe, Charlou, Jean Luc, Donval, Jean Pierre, Fouquet, Yves, Appriou, Pierre, Gamo, Toshitaka (1999) Yttrium and rare earth elements in fluids from various deep-sea hydrothermal systems. Geochimica et Cosmochimica Acta, 63 (5) 627-643 doi:10.1016/s0016-7037(99)00024-1 | Journal (article/letter/editorial) | | earth elements in fluids from various deep-sea hydrothermal systems ERIC DOUVILLE,1,3 PHILIPPE BIENVENU...Centre de Brest, DRO/GM, 29280 Plouzané, France 4 Ocean Research Institute, University of Tokyo, Nakano...collected from deep-sea hydrothermal systems including the Mid-Atlantic Ridge (MAR), i.e., Menez Gwen...Gwen, Lucky Strike, TAG, and Snakepit; the East Pacific Rise (EPR), i.e., 13°N and 17–19°S; and the Lau (Vai...enrichment and positive Eu anomalies. REE analysis of plagioclase collected at Lucky Strike strengthens the idea |  | Craddock, Paul R., Bach, Wolfgang, Seewald, Jeffrey S., Rouxel, Olivier J., Reeves, Eoghan, Tivey, Margaret K. (2010) Rare earth element abundances in hydrothermal fluids from the Manus Basin, Papua New Guinea: Indicators of sub-seafloor hydrothermal processes in back-arc basins. Geochimica et Cosmochimica Acta, 74 (19) 5494-5513 doi:10.1016/j.gca.2010.07.003 | Journal (article/letter/editorial) | | com/locate/gca Rare earth element abundances in hydrothermal fluids from the Manus Basin, Papua New Guinea:...Guinea: Indicators of sub-seafloor hydrothermal processes in back-arc basins Paul R. Craddock a,*,1, Wolfgang...large suite of seafloor vent fluids from four hydrothermal systems in the Manus back-arc basin (Vienna...different vent fluids range from light-REE enriched, to mid- and heavy-REE enriched, to flat, and have a range...uniform REEN distribution patterns of mid-ocean ridge hydrothermal fluids. In Manus Basin fluids, aqueous |  | Bailie, Russell, Gutzmer, Jens, Strauss, Harald, Stüeken, Eva, McClung, Craig (2010) Sulfur isotope characteristics of metamorphosed Zn–Cu 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...Northern Areachap Basal biotite–hornblende–quartz plagioclase gneiss (Smouspan Gneiss); phlogopite–cordierite–gedrite...5) are in excess of temperatures recorded in hydrothermal vent systems on the sea floor (Galley et al...section. Abbreviations: cpy chalcopyrite, plag plagioclase, po pyrrhotite, py pyrite, qtz quartz regional...metamorphism and that the stockwork (and vent complex) sulfides of the Bathurst Mining Camp have consistently |  | Bach, Wolfgang, Roberts, Stephen, Vanko, David A., Binns, Ray A., Yeats, Chris J., Craddock, Paul R., Humphris, Susan E. (2003) Controls of fluid chemistry and complexation on rare-earth element contents of anhydrite from the Pacmanus subseafloor hydrothermal system, Manus Basin, Papua New Guinea. Mineralium Deposita, 38 (8) 916-935 doi:10.1007/s00126-002-0325-0 | Journal (article/letter/editorial) | | contents of anhydrite from the Pacmanus subseafloor hydrothermal system, Manus Basin, Papua New Guinea Received:...September 2002 Springer-Verlag 2002 Abstract Ocean Drilling Program (ODP) leg 193 successfully drilled...underlying the active dacite-hosted Pacmanus hydrothermal field in the eastern Manus Basin. Anhydrite is...Roberts Southampton Oceanography Centre, School of Ocean and Earth Sciences, University of Southampton, Southampton...during ODP Leg 158 from the TAG hydrothermal system at the Mid-Atlantic Ridge which display uniform LREE-enriched |  | | Book | | the Deep A Photographic Atlas of the Seafloor and Ocean Crust The deep oceans and global seafloor are truly...and fault zones in mountains a mile beneath the ocean surface, where bizarre landscapes host exotic life...components of the Earth’s ocean floor and the myriad environments found along mid-ocean ridges where new crust...explanations of how the various geological and hydrothermal features of the seafloor are formed through... Professor Karson has participated in numerous field projects and seafloor research cruises worldwide |  | | 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) | | 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...serpentinization of olivine and magnetite formation. Plagioclase in troctolite experienced desilicification, resulting...resulting in NU andradite formation. The stability field of sulfide in the H2-H2S activity plane is diminished |  | Pedersen, Leif-Erik Rydland, Staudigel, Hubert, McLoughlin, Nicola, Whitehouse, Martin J., Strauss, Harald (2017) A multiple sulfur isotope study through the volcanic section of the Troodos ophiolite. Chemical Geology, 468. 49-62 doi:10.1016/j.chemgeo.2017.08.008 | Journal (article/letter/editorial) | | biological and abiotic cycling of sulfur in hydrothermal systems. We applied these techniques to the...volcanic section of the ophiolite, including the hydrothermal massive sulfide deposit at Agrokipia, which...from the “root zone” ACCEPTED MANUSCRIPT of hydrothermal upwelling. The contributions of these two sources...sulfur sources. Microbial reworking of the sulfide mound is recorded in a sample with very elevated Δ33S...pyrite with 34S = ~-21 ‰ implies local ephemeral hydrothermal upwelling in the lower Akaki volcanics, possibly |  | Dias, Á.S., Mills, R.A., Ribeiro da Costa, I., Costa, R., Taylor, R.N., Cooper, M.J., Barriga, F.J.A.S. (2010) Tracing fluid–rock reaction and hydrothermal circulation at the Saldanha hydrothermal field. Chemical Geology, 273 (3) 168-179 doi:10.1016/j.chemgeo.2010.02.020 | Journal (article/letter/editorial) | | fluid–rock reaction and hydrothermal circulation at the Saldanha hydrothermal field Á.S. Dias a,⁎, R.A...Campo Grande, 1749-016 Lisboa, Portugal School of Ocean and Earth Science, National Oceanography Centre...Saldanha hydrothermal field Radiogenic isotopes Steatization a b s t r a c t The Saldanha hydrothermal field...non-transform offset (NTO5) on the Mid-Atlantic Ridge (MAR). This hydrothermal system was first described as...across the area and show that hydrothermal circulation at Saldanha is complex and spatially variable, comprising |  | | 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...the seafloor. It was documented that the 350°C hydrothermal fluids discharging from the black smoker chimneys |  | | Journal (article/letter/editorial) | | Rare earth element distribution in >400 °C hot hydrothermal fluids from 5°S, MAR: The role of anhydrite in...2010 Abstract Two submarine hydrothermal vent fields at 5°S, Mid-Atlantic Ridge (MAR) – Turtle Pits and Comfortless...Comfortless Cove fluids, precipitation/dissolution of hydrothermal anhydrite controls the variability in REE concentrations...emanation of such a fluid may be favored in a young hydrothermal system in its high-activity phase with short...restricted to the very hot, actively phase-separating hydrothermal systems Turtle Pits and Comfortless Cove at |  | | Journal (article/letter/editorial) | | Copyright ° VOLCANOES, FLUIDS, AND LIFE AT MID-OCEAN RIDGE SPREADING CENTERS Annu. Rev. Earth Planet....jdelaney@u.washington.edu Key Words hydrothermal vents, mid-ocean ridge, microorganisms, extremophiles, submarine...associated with active volcanism along the global mid-ocean ridge network has fundamentally shifted concepts...geological, chemical, and biological processes at mid-ocean ridge spreading centers. This change has been brought...evident than at mid-ocean ridge spreading centers. From investigation of active hydrothermal vents comes |  | 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 |
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