 | | Report (chapter) | | 25, 2015 Hydrothermal deposits and metalliferous sediments from TAG, 26~ Mid-Atlantic Ridge R A C H E...Abstract: The Trans-Atlantic Geotraverse (TAG) hydrothermal site at 26~ on the Mid-Atlantic Ridge has been...of many studies since the early 1970s. The hydrothermal field includes a wide variety of deposits ranging...different styles of venting and the evolution of the hydrothermal system over time. Metalliferous sediments in...mass wasting of mound features and fall out of plume particulates. The active TAG mound was drilled by |  | 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...the dominant hydrothermal mineral and Cu sulfides (chalcopyrite, covellite) and hydrothermal Mn oxides (birnessite...time. Keywords: seafloor mining; Mid Atlantic Ridge; TAG hydrothermal field; sediment cores; XRD; sequential |  | | Journal (article/letter/editorial) | | seafloor hydrothermal systems: metalliferous deposits from the TAG hydrothermal area, 26’N Mid-Atlantic Ridge...from the TAG hydrothermal area, 26”N on the Mid-Atlantic Ridge, reveal evidence of release of ocean crust-derived...Is60s ratios of sulfide samples from the active TAG mound vary between 8.7 and 1.3. The highest ratios are...evidence of both entrainment of seawater into hydrothermal fluids and the addition of seawater OS to samples...oxidation. Several sulfide samples from the active TAG mound have ls70s/ ls60s ratios lower than the inferred |  | | 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) | | Material from the Loki’s Castle Hydrothermal Vent on the Mohn’s Ridge Ben Snook 1, *, Kristian Drivenes... Abstract: Loki’s 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...Keywords: Seafloor sulphides; Norway; Arctic Mid Ocean Ridge; copper; zinc; mineralogy; ICP-ES/ MS; XRD;...present on the seafloor as active or inactive hydrothermal vent systems, and they may represent contemporary |  | 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...pyrrhotite, native gold, silver telluride, barite, and aragonite are sporadic. Gold containing 0.31 to 23.07 wt...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 |  | 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 |  | | Journal (article/letter/editorial) | | elsevier.com/locate/gca Insights to magmatic–hydrothermal processes in the Manus back-arc basin as recorded...sub-seafloor processes governing the formation of hydrothermal fluids in the convergent margin Manus Basin,...and Fenway) and SuSu Knolls (North Su) active hydrothermal fields. Chondrite-normalized REE patterns in...uniform REEN patterns measured in anhydrite from mid-ocean ridge deposits. The REEN patterns in anhydrite are...correlated with REE distributions measured in hydrothermal fluids venting at the seafloor at these vent fields |  | 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 |  | | 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 |  | Marques, A. F. A., Barriga, F., Chavagnac, V., Fouquet, Y. (2006) Mineralogy, geochemistry, and Nd isotope composition of the Rainbow hydrothermal field, Mid-Atlantic Ridge. Mineralium Deposita, 41 (1) 52-67 doi:10.1007/s00126-005-0040-8 | Journal (article/letter/editorial) | | isotope composition of the Rainbow hydrothermal field, Mid-Atlantic Ridge Received: 11 March 2005 / Accepted:...Rainbow vent field to assess the evolution of the hydrothermal system. The Rainbow vent field is an ultramafichosted...ultramafichosted hydrothermal system located on the Mid-Atlantic Ridge characterized by vigorous high-temperature...heat and specific chemical features of Rainbow hydrothermal fluids. The following units were identified...with the current knowledge of the Rainbow vent field, brings compelling evidence for the presence, at |  | Amini, Marghaleray, Eisenhauer, Anton, Böhm, Florian, Fietzke, Jan, Bach, Wolfgang, Garbe-Schönberg, Dieter, Rosner, Martin, Bock, Barbara, Lackschewitz, Klas S., Hauff, Folkmar (2008) Calcium isotope (δ44/40Ca) fractionation along hydrothermal pathways, Logatchev field (Mid-Atlantic Ridge, 14°45′N) Geochimica et Cosmochimica Acta, 72 (16) 4107-4122 doi:10.1016/j.gca.2008.05.055 | Journal (article/letter/editorial) | | (d44/40Ca) fractionation along hydrothermal pathways, Logatchev field (Mid-Atlantic Ridge, 14°450 N) Marghaleray...We investigate the Logatchev Hydrothermal Field at the Mid-Atlantic Ridge, 14°450 N to constrain the calcium...isotope hydrothermal flux into the ocean. During the transformation of seawater to a hydrothermal solution...increases from about 10 mM to about 32 mM in the hydrothermal fluid endmember ([Ca]HydEnd) and thereby adopts...(SW) for the isotopic composition of the entire hydrothermal cell of the Logatchev field. The values are isotopically |  | | 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) | | tracers for hidden and fossil high-temperature hydrothermal systems Michael Bau a,b,⁎, Simona Balan a,1...Keywords: rare earth elements Mytilus Bathymodiolus hydrothermal system biomineralization proxy a b s t r a...ecological niches at marine vent sites where hydrothermal fluids discharge at the seafloor and mix with...low-temperature diffuse hydrothermal fluids venting in their respective habitat at three hydrothermal vent fields along...along the Mid-Atlantic Ridge (MAR) and for littoral Mytilus edulis shells from the western North Atlantic |  | | 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 |  | | Book | | Publication by the United Nations Division for Ocean Affairs and the Law of the Sea, Office of Legal...Mineral Deposits From Sources in Ocean Basins (i) (ii) Hydrothermal Deposits: Metalliferous Sediments...Sources in Ocean Basins 4.3 Marine Mineral Deposits from Sources on Continents and in Ocean Basins (i)...1 Biodiversity in the Deep Ocean in General 5.2 Biodiversity at Deep Ocean Hot Springs at Polymetallic...17 of Agenda 21. The United Nations Division for Ocean Affairs and the Law of the Sea of the Office of |  | | 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 |  | Glasby, G.P., Stüben, D., Jeschke, G., Stoffers, P., Garbe-Schönberg, C.-D. (1997) A model for the formation of hydrothermal manganese crusts from the Pitcairn Island hotspot. Geochimica et Cosmochimica Acta, 61 (21) 4583-4597 doi:10.1016/s0016-7037(97)00262-7 | Journal (article/letter/editorial) | | SOO16-7037( 97)00262-7 A model for the formation of hydrothermal manganese crusts from the Pitcairn Island hotspot...Abstract-The distribution of elements in the hydrothermal Mn crusts from the Pitcaim Island hotspot can...include the role of boiling of the ascending hydrothermal fluid which leads to sulphide deposition and...in the hydrothermal fluids at the Pitcaim Island hotspot (<25O”C) compared to those at mid-ocean ridges...metals, Li, Rb, and Cs, remain in solution in the hydrothermal fluids and are selectively incorporated into |  | | Book | | 2. Oceanography I. Title 553.09162 - dc. 21 3. Ocean bottom ISA/04/01 All rights reserved. No part...World’s Ocean 162 V. M. Yubko Chapter 4 Hydrothermal Sulphide Mineralisation of the Atlantic – Results...Development of Seafloor Massive Sulphides on deep-sea hydrothermal Vent Ecosystems 273 S. Kim Juniper Chapter...Development of an Environmental Baseline in Large Open-Ocean Systems off Southern Namibia by De Beers Marine...the seafloor in the abyssal plains of the world’s ocean, this requirement has worked and seven entities |  | | Book | | GEOLOGY IN MARINE GLOBAL SEDIMENTOLOGY OF THE OCEAN: AN INTERPLAY BETWEEN GEODYNAMICS AND PALEOENVIRONMENT...IN MARINE GEOLOGY GLOBAL SEDIMENTOLOGY OF THE OCEAN: AN INTERPLAY BETWEEN GEODYNAMICS AND PALEOENVIRONMENT...Generalities: Geodynamics of the Ocean 2.1. The Geological Structure of the Ocean 2.2. Oceanic Waters and Their...The Gulf of Suez 3.5. Ancient Rifts: The South Atlantic Rift Sediments in Brazil and Gabon Further Reading...5.4. Ancient Crustal Fissures: The Mid-Cretaceous South Atlantic Further Reading 6. Mature Oceans in |  | 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 |  | | Journal (article/letter/editorial) | | Jenkins Southampton Oceanography Centre, School of Ocean and Earth Science, University of Southampton, European...budget for the Holocene ocean. We find that the gross input of U to the ocean lies in the range 53 F 17...oceanic excess of 234U. The total sink of U from the ocean lies in the range 48 F 14 Mmol/year. We find that...Mmol/year); and (3) crustal sequestration during hydrothermal alteration and seafloor weathering (5.7 F 3...implies that U may be in steady state in the Holocene ocean. In this case, the input and output fluxes lie in |  | | Journal (article/letter/editorial) | | Geochemistry and iron isotope systematics of hydrothermal plume fall-out at East Pacific Rise 9°50′N Olivier...isotopes Seafloor hydrothermal systems Hydrothermal plume Marine particles Sediment traps Mid-ocean ridges a...a b s t r a c t While gross hydrothermal fluxes entering the ocean are known to be significant, much remains...and its impact upon ocean biogeochemistry. Mineral precipitation within hydrothermal plumes removes hy...particulate Fe released from high-temperature hydrothermal venting at EPR 9°50′N and its potential impact |  | | Journal (article/letter/editorial) | | uplifted ultramafic rocks have hosted abyssal-type hydrothermal systems probably since Middle Triassic time...fluids and those produced by a deeply penetrative hydrothermal front. On the basis of these observations and... since middle Triassic time, by a pervasive hydrothermal circulation originated by seawater infiltration...areas are interpreted as parts of an Early Permian trans-Pangea oceanic basin, connecting the Panthalassa...metasomatic rock (with chlorite/ smectite, albite, hydrothermal zircon, titanite, aegirineaugite and relics |
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