| | Journal (article/letter/editorial) | No. 2, pp. 154–174. Hydrothermal Systems in Peridotites of Slow-Spreading Mid-Oceanic Ridges. Modeling...and Material Balance: Downwelling Limb of a Hydrothermal Circulation Cell S. A. Silantyev, M. V. Mironenko...thermodynamic modulus of the model is based on the GEOCHEQ complex, which makes it possible to simulate equilibria...develop a thermodynamic model for the origin of hydrothermal systems in peridotites in slow-spreading ridges...parameters of the magmatic, metamorphic, and hydrothermal processes that form rock complexes in these | | Halama, Ralf, Savov, Ivan P., Garbe-Schönberg, Dieter, Schenk, Volker, Toulkeridis, Theofilos (2013) Vesuvianite in high-pressure-metamorphosed oceanic lithosphere (Raspas Complex, Ecuador) and its role for transport of water and trace elements in subduction zones. European Journal of Mineralogy, 25 (2) 193-219 doi:10.1127/0935-1221/2013/0025-2281 | Journal (article/letter/editorial) | high-pressure-metamorphosed oceanic lithosphere (Raspas Complex, Ecuador) and its role for transport of water and...occur in serpentinised peridotites of the Raspas Complex (Ecuador), which represents a piece of oceanic...LREE enrichments (LaN/SmN ¼ 1.2–5.5) point to hydrothermal alteration of the peridotite precursor rocks...gabbros and troctolites. Vesuvianite in the Raspas Complex formed by hydration and silica removal from gabbroic...subduction, vesuvianite, oceanic lithosphere, Raspas Complex, serpentinite, trace elements, fluid-rock interaction | | | Journal (article/letter/editorial) | online 14 November 2008 Keywords: Metasomatism Hydrothermal processes Serpentinite Rodingite Fluid–rock...400 °C. Phase assemblages typical of rodingite (grossular + diopside ± chlorite) are predicted to form at...mineralogical variability within rodingites from the ocean floor is mainly driven by steep activity gradients...Seyfried et al., 2007). Such fluids are known from mid-ocean ridge settings (Kelley et al., 2001; Kelley et al...Ca–Al silicates, including zoisite, prehnite, grossular/hydrogrossular, and vesuvianite. Other phases | | | Journal (article/letter/editorial) | result in the formation of magnetite either. A hydrothermal serpentinization experiment PT using lherzolite...off-axis serpentinization systems in the Hadean Ocean represent a likely venue for the emergence of life...Seyfried (2003), which investigated the NU hydrothermal alteration of distinct ultramafic protolith...antigorite, hydroxyltopaz, huntite, wüstite, grossular and andradite. While calcite has been found in...fillings indicative of mixing processes involving hydrothermal fluid and seawater, or as a replacement mineral | | Lafay, Romain, Montes-Hernandez, German, Janots, Emilie, Munoz, Manuel, Auzende, Anne Line, Gehin, Antoine, Chiriac, Rodica, Proux, Olivier (2016) Experimental investigation of As, Sb and Cs behavior during olivine serpentinization in hydrothermal alkaline systems. Geochimica et Cosmochimica Acta, 179. 177-202 doi:10.1016/j.gca.2016.02.014 | Journal (article/letter/editorial) | behavior during olivine serpentinization in hydrothermal alkaline systems Romain Lafay a,b,⇑, German...sorption on serpentine products that may form in hydrothermal environments at low temperatures. FME sequestration...‘‘serpentinization”, at temperatures below 400 °C. This hydrothermal alteration reaction leads to the hydration of...serpentinite rock, which constitute up to 15% of the ocean floor lithosphere (Carlson, 2001; Mével, 2003)....investigating the trace element geochemistry of ocean floor serpentinites has considerably increased (Paulick | | | Journal (article/letter/editorial) | China Craton: mantle wedge metasomatism during ocean–continent convergence Chao-Nan Hu & M Santosh To...China Craton: mantle wedge metasomatism during ocean–continent convergence, International Geology Review...China Craton: mantle wedge metasomatism during ocean–continent convergence Chao-Nan Hu a and M Santosha... K, La, and Ce with relative depletion of high field strength elements like Nb, Ta, Zr, and Hf in the...from rodingitized hornblende gabbro in Sandaogou complex show a wide range of ages as 412 Ma, 398 Ma, 383 | | | Journal (article/letter/editorial) | hydrocarbons that can feed the colonies of microbes in hydrothermal vent fields, and therefore serpentinization...leaches aluminum (Al) and chromium (Cr) during hydrothermal alteration, and Al and Cr enhance molecular...org/licenses/by/ 4.0/). Serpentinization is a hydrothermal alteration of ultramafic rocks at temperatures...peridotites are abundantly exposed at mid-ocean ridges, and hydrothermal activity results in serpentinization...microbes from many geological settings, such as hydrothermal vents, alkaline springs, and the deep subsurface | | | Journal (article/letter/editorial) | occur in hydrothermal systems. Basalt is the dominant extrusive rock that comprises the ocean crust, and...minerals, such as pyrite (FeS2) that precipitate at hydrothermal vents also undergo alteration reactions that...that represents an emerging Hawaiian island. Hydrothermal fluids are emitted at the summit, in vicinity...oxidizing bacteria (FeOB). FeOB habitats include the hydrothermal vents, which range in temperature from ambient...sulfide by comparison to other deep-seam marine hydrothermal venting habitats. Previous studies have established | | | Book | 20 Metal complexation and ion association in hydrothermal fluids: insights from quantum chemistry and...temperatures and venting salinities at mid-ocean ridge hydrothermal systems T. Driesner 132 Using seafloor...as a tracer to map subseafloor fluid flow in the ocean crust A. T. Fisher and R. N. Harris 142 The potential...organic synthesis and biosynthesis at seafloor hydrothermal systems E. Shock and P. Canovas 161 vi Contents...the oil charge history of the North Sea and UK Atlantic margin. Hanor and Mercer describe the behaviour | | Morrill, Penny L., Kuenen, J. Gijs, Johnson, Orion J., Suzuki, Shino, Rietze, Amanda, Sessions, Alex L., Fogel, Marilyn L., Nealson, Kenneth H. (2013) Geochemistry and geobiology of a present-day serpentinization site in California: The Cedars. Geochimica et Cosmochimica Acta, 109. 222-240 doi:10.1016/j.gca.2013.01.043 | Journal (article/letter/editorial) | marine sediments of the Franciscan Subduction Complex (FSC) below the 28 peridotite body. We propose...the Franciscan Subduction Complex (FSC) (Fig 1). Within this 60 complex, rocks composed of marine sediments...lacking substantial amounts of Al (e.g. zoisite, grossular) or ferric iron 100 (andradite), Ca-silicates...of abiogenic hydrocarbons. 109 Experimental hydrothermal reactions at conditions characteristic of serpentinization...ultra-mafic rock-hosted environment of the Lost City Vent 120 Field (Proskurowski et al., 2008). Therefore | | | Journal (article/letter/editorial) | Gabbroic dikes in the ocean lithospheric mantle commonly undergo hydrothermal transformation to rodingites...400°C. Phase assemblages typical of rodingite (grossular+diopside±chlorite) are predicted to form at 200°C...mineralogical variability within rodingites from the ocean floor is mainly driven by steep gradients in aqueous...solidii to form large plutons. Nature is undoubtably complex, and can produce exceptions to this model, but...applied to all tectonic settings, from the the mid-ocean ridges, to island arcs and continetal magmatism | | | Journal (article/letter/editorial) | subducting direction of the Paleo-Southern Tianshan Ocean ZHONG-PING MA, LIN-QI XIA, XUE-YI XU, XIANG-MIN...Tianshan Ocean, which also suggest that the subducting direction of Paleo-Southern Tianshan Ocean is not... and can be approached using pure cultures and field studies of modern analog sites. Sawmill Sink (Abaco...Ceske Budejovice, Czech Republic 3 Oak Ridge National Lab, Oak Ridge, TN 37831, USA 4 University of Leeds...by acid mine drainage (AMD) has been achieved in field passive remediation experiments by the use of limestone | | | Journal (article/letter/editorial) | magnesite nucleation and growth. This implies that the complex nature of natural material should be taken into...and isotopic compositions in the South Atlantic and Southern Ocean C. ABADIE*1, F. LACAN1, A. RADIC1 2 AND...influence on the carbon cycle. Its sources to the ocean remain a matter of debate. It has been suggested...DFe) in seawater, in the oxic South Atlantic and Southern Ocean, off the South African coast towards...widespread than oxygen minimum zones in the global ocean. www.minersoc.org DOI:10.1180/minmag.2013.077.5 | | | Book | Hydrothermal Processes and Mineral Systems Hydrothermal Processes and Mineral Systems Franco Pirajno...springer.com To my wife Foreword The Earth is a complex and dynamic system that over 4.5 billion years...resources we depend on. Franco Pirajno’s book ‘‘Hydrothermal Processes and Mineral Systems’’ provides an...the development of life and extraterrestrial hydrothermal systems. Discovery and recovery of mineral resources...variety of water sources that participate in hydrothermal circulation systems (Chapter 1), the alteration | | | Journal (article/letter/editorial) | only 2 to 4 km MA below the seafloor near the ridge axis (Escartín et al., 1997; Dunn et al., 2017)...serpentinization, for instance in deep hydrothermal systems within ophicarbonates of mid-oceanic ridges (Trommsdorff...systems (e.g. Klein & McCollom, 2013). In addition, field observations reveal that the back-reaction of serpentinite...within the hydrated lithospheric mantle. RI hydrothermal systems (Kelley et al., 2005; McCollom, 2007)...et al., 2018). At the Mariana subduction zone, ocean-bottom seismic data recently revealed that significant | | | Book | and Platinum in Basic Magmas . . 3.3.3 Bushveld Complex . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . 3.3.5 Sudbury Igneous Complex . . . . . . . . . . . . . . . . . . . . 3.4 Komatiite.... . . . . . . . . . . . . . . . . . . 142 4 Hydrothermal Deposits . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . 4.1 Hydrothermal Veins . . . . . . . . . . . . . . . . . . . . ....and Sandstone-Hosted Uranium Deposits . 4.15 Hydrothermal Systems on the Seafloor (Introduction) . . . |
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