 | 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 |  | | Journal (article/letter/editorial) | | crystalline silica from the TAG submarine hydrothermal mound, 26°N Mid Atlantic Ridge Received: 10 September...variety of hydrothermal samples from the Trans-Atlantic Geotraverse (TAG) hydrothermal mound, 26°N Mid-Atlantic...Mid-Atlantic Ridge. The water content, trace element chemistry, and mineralogy of crystalline silica from 15...white smoker chimney (n 1), anhydrite bearing hydrothermal breccias (n 2), pyrite silica breccias (n...of ferric iron oxyhydroxides in hydrothermal breccias from the mound ¯anks, within shallower subsurface |  | | 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 |  | 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°31′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°31′N), MidAtlantic Ridge I. Yu. Melekestsevaa, V. A...copper–zinc ore of the Semenov2 hydrothermal field, a site in the Semenov hydrothermal cluster discovered in 2007...(127–1787 ppm). Chalcopyrite, isocubanite, würtzite, and opal are major minerals; sphalerite, marcasite, pyrite...dendritelike, and elongated grains mostly hosted in opal and less frequently in sphalerite and in pores within...only basalts have been dredged from the Semenov2 field, but anomalous gold and silver concentrations suggest |  | 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 |  | | 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 |  | | 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) | | gemstone that commonly commands a high price is opal. Opal comes in several gemological forms and optical...formation. While the presence of non gem-quality opal is often reported within geological literature there...geology of gem-quality opals and in particular fire opal. Fire opals are typically red in colour and though...less likely to display optical effects than other opal varieties they still reach tens to hundreds of pounds...geological and structural environments of two famous fire opal localities – Simav in Turkey (in particular the |  | | Report (chapter) | | studies of vent fluids from the TAG and MARK sites (1986, 1990) Mid-Atlantic Ridge: a new solution chemistry...of vent fluids from the TAG and M A R K sites (1986, 1990) Mid-Atlantic Ridge: a new solution chemistry...USA Abstract: The hot springs at TAG and MARK on the Mid-Atlantic Ridge have been resampled after an interval...those on the faster spreading ridges of the Pacific, TAG has pronounced differences. The depletion in B and...the recharge path that is unique to TAG. In addition, the TAG mound contains a large cluster of sphalerite-rich |  | 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...and Fe-vernadite. Fe-free vernadite, akaganeite, opal, nontronite, lepidocrocite, and jarosite occur in |  | Maslennikov, Valeriy V., Cherkashov, Georgy A., Firstova, Anna V., Ayupova, Nuriya R., Beltenev, Victor E., Melekestseva, Irina Yu., Artemyev, Dmitry A., Tseluyko, Aleksandr S., Blinov, Ivan A. (2022) Trace Element Assemblages of Pseudomorphic Iron Oxyhydroxides of the Pobeda-1 Hydrothermal Field, 17°08.7′ N, Mid-Atlantic Ridge: The Development of a Halmyrolysis Model from LA-ICP-MS Data. Minerals, 13 (1) 4 doi:10.3390/min13010004 | Journal (article/letter/editorial) | | Oxyhydroxides of the Pobeda-1 Hydrothermal Field, 17◦ 08.70 N, Mid-Atlantic Ridge: The Development of a Halmyrolysis...Oxyhydroxides of the Pobeda-1 Hydrothermal Field, 17◦ 08.70 N, Mid-Atlantic Ridge: The Development of a Halmyrolysis...Institute for Geology and Mineral Resources of the Ocean (VNIIOkeangeologia), Angliisky Av. 1, 190121 St...the global processes of alteration of seafloor hydrothermal sediments, needs to be recognized in terms of...metallogenic and geoecological forecasts with respect to ocean exploration. The purpose of this paper is to explain |  | | Journal (article/letter/editorial) | | seafloor deposition and diagenetic maturation of hydrothermal plume-derived silica-iron gels Received: 28...to record colloidal fallout from one or more hydrothermal plumes, followed by maturation (ageing) of an...on top of the gels. Keywords Jasper Æ Gels Æ Hydrothermal Æ Diagenesis Æ Volcanogenic massive sulphide...Introduction Jaspers (red hematitic cherts) of seafloor hydrothermal origin are known from some Proterozoic and many...analogue of modern VMS systems on sediment-free ridge crests (cf. Hannington et al. 1995). We report here |  | | 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 |  | Melekestseva, Irina, Kotlyarov, Vasiliy, Tret’yakov, Gennadiy, Shilovskikh, Vladimir, Khvorov, Pavel, Belogub, Elena, Beltenev, Victor, Filippova, Kseniya, Sadykov, Sergey (2022) The Heavy-Metal Fingerprint of the Irinovskoe Hydrothermal Sulfide Field, 13°20′ N, Mid-Atlantic Ridge. Minerals, 12 (12) 1626 doi:10.3390/min12121626 | Journal (article/letter/editorial) | | Fingerprint of the Irinovskoe Hydrothermal Sulfide Field, 13◦ 200 N, Mid-Atlantic Ridge Irina Melekestseva 1,...The Heavy-Metal Fingerprint of the Irinovskoe Hydrothermal Sulfide Institute of Mineralogy, South Urals...chimneys of the Irinovskoe hydrothermal sulfide field, 13◦ 200 N, Mid-Atlantic Ridge. Sulfide samples were...with up to 41.38 wt% Cd) and wurtzite, subordinate opal, pyrite, chalcopyrite and Fe-oxyhydroxides, as well...processing of seafloor hydrothermal sulfide fields. Field, 13◦ 200 N, Mid-Atlantic Ridge. Minerals 2022, 12 |  | | 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 |  | Liao, Shili, Tao, Chunhui, Li, Huaiming, Barriga, Fernando J.A.S., Liang, Jin, Yang, Weifang, Yu, Junyu, Zhu, Chuanwei (2018) Bulk geochemistry, sulfur isotope characteristics of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge. Ore Geology Reviews, 96. 13-27 doi:10.1016/j.oregeorev.2018.04.007 | Journal (article/letter/editorial) | | of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge Shili Liao, Chunhui...of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge, Ore Geology Reviews...of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge Shili Liaoa, b...Ciências, Universidade de Lisboa, Lisboa, Portugal d Ocean college, Zhejiang University, Zhoushan 316021, Zhejiang...Guizhou, China Abstract ： The Yuhuang-1 hydrothermal field (HF) was discovered recently on the ultraslow-spreading |  | | Journal (article/letter/editorial) | | pure silica precipitates of hydrothermal origin from the Central Indian Ocean b M. Halbach a,) , P. Halbach...about silica-rich hydrothermal precipitates which were sampled together with hydrothermal sulfides Žchimney...Žchimney fragments. in an extinct vent field in the Central Indian Ocean. There are two kinds of silica-rich...precipitates can be explained by different cycles of hydrothermal activity: one high-temperature Žabove 300 8C...processes are part of the evolution of the mineralized field. q 2002 Elsevier Science B.V. All rights reserved |  | Safina, Nataliya P., Melekestseva, Irina Yu., Nimis, Paolo, Ankusheva, Nataliya N., Yuminov, Anatoly M., Kotlyarov, Vasily A., Sadykov, Sergey A. (2016) Barite from the Saf’yanovka 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 +19.6‰) of hydrothermal barite from the Semenov3 clastic sulfides indicates...thermochemical reduction of seawater sulfate. Hydrothermal barite from the Saf’yanovka and Semenov-1 colloform |  | 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) | | com/locate/apgeochem Hydrothermal Fe–Si–Mn oxide deposits from the Central and South Valu Fa Ridge, Lau Basin Zhilei...samples from the Hine Hina hydrothermal field (HHF) and the Mariner hydrothermal field (MHF) in the Central...Central and Southern Valu Fa Ridge (VFR), Lau Basin were examined to explain the source origin and formation...formation of the hydrothermal Fe–Si–Mn oxide deposits. The mineralogy was studied by X-ray diffraction (XRD)...indicative of proximity to a hydrothermal jet. Moreover, conductive cooling of hydrothermal fluid evoked the Si-rich |  | Rusakov, V. Yu., Shilov, V. V., Ryzhenko, B. N., Gablina, I. F., Roshchina, I. A., Kuz’mina, T. G., Kononkova, N. N., Dobretsova, I. G. (2013) Mineralogical and geochemical zoning of sediments at the Semenov cluster of hydrothermal fields, 13°31′-13°30′ N, Mid-Atlantic Ridge. Geochemistry International, 51 (8) 646-669 doi:10.1134/s0016702913050066 | Journal (article/letter/editorial) | | the Semenov Cluster of Hydrothermal Fields, 13°31'–13°30' N, MidAtlantic Ridge V. Yu. Rusakova, V. V...northwestern (active) and eastern (inactive) hydrothermal vent fields of the Semenov cluster. Min eral...was proposed for the vertical structure of the hydrothermal–sedimentary sequence overlying massive sulfide...sediments, atacamite, Semenov hydrothermal cluster, MidAtlantic Ridge, upper Pleistocene–Holocene DOI:...are common within the hydrothermal fields The Semenov cluster of hydrothermal fields was discovered |  | | 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 |  | 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 |  | | 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 |  | Linsy, P., Prakash, L. Surya, Roy, Parijat, Shuhail, Muhammad, Kurian, P. John (2023) Geochemical Characteristics of Iron in a Sediment Core at 63°40′ E, Eastern Southwest Indian Ridge: Implications on Regional Hydrothermal Activities and Source Origin. Minerals, 13 (2) 209 doi:10.3390/min13020209 | Journal (article/letter/editorial) | | E, Eastern Southwest Indian Ridge: Implications on Regional Hydrothermal Activities and Source Origin...P. John Kurian * National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Vasco-da-Gama...marine biogeochemical cycle, and hydrothermal processes at mid-ocean ridges are well-known as one of its...water column. However, a major portion of the hydrothermal iron is precipitated near the source and plays...core collected from the eastern Southwest Indian Ridge (SWIR) to understand the iron association in individual |  | Middleton, Jennifer L., Mukhopadhyay, Sujoy, Costa, Kassandra M., Pavia, Frank J., Winckler, Gisela, McManus, Jerry F., D'Almeida, Marcelle, Langmuir, Charles H., Huybers, Peter J. (2020) The spatial footprint of hydrothermal scavenging on 230ThXS-derived mass accumulation rates. Geochimica et Cosmochimica Acta, 272. 218-234 doi:10.1016/j.gca.2020.01.007 | Journal (article/letter/editorial) | | Journal Pre-proofs The spatial footprint of hydrothermal scavenging on 230ThXS-derived mass accumulation...H., Huybers, P.J., The spatial footprint of hydrothermal scavenging on 230ThXSderived mass accumulation...rights reserved. The spatial footprint of hydrothermal scavenging on 230ThXS-derived mass accumulation...845-365-8481; fax: 845-365-8155 1 Abstract Mid-ocean ridges are valuable archives of sedimentary flux...model resolution. However, thorium scavenging by hydrothermal particles can perturb local 230ThXS deposition |
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