 | Laurent, Valentin, Lanari, Pierre, NaĂŻr, InĂšs, Augier, Romain, Lahfid, Abdeltif, Jolivet, Laurent (2018) Exhumation of eclogite and blueschist (Cyclades, Greece): Pressure-temperature evolution determined by thermobarometry and garnet equilibrium modelling. Journal of Metamorphic Geology, 36 (6) 769-798 doi:10.1111/jmg.12309 | Journal (article/letter/editorial) | | Exhumation of eclogite and blueschist (Cyclades, Greece):Pressure-temperature evolution determined by thermobarometry...debated. Although the Cycladic Blueschist Unit (CBU, Greece) is among the best worldwide examples for the preservation...trajectory for different subunits of the CBU on Syros. High-resolution quantitative compositional mapping...peak temperature distribution at the scale of the island. A major result of this study is the good agreement...(CBU), cropping out in the Cycladic archipelago (Greece), is one of the best worldwide examples of a fossilized |  | Cooperdock, Emily H.G., Raia, Natalie H., Barnes, Jaime D., Stockli, Daniel F., Schwarzenbach, Esther M. (2018) Tectonic origin of serpentinites on Syros, Greece: Geochemical signatures of abyssal origin preserved in a HP/LT subduction complex. Lithos, 296. 352-364 doi:10.1016/j.lithos.2017.10.020 | Journal (article/letter/editorial) | | com/locate/lithos Tectonic origin of serpentinites on Syros, Greece: Geochemical signatures of abyssal origin preserved...2017 Available online xxxx Keywords: Serpentinite Syros Cycladic Blueschist unit Trace element Stable isotope...isotope a b s t r a c t This study combines whole rock trace and major element geochemistry, and stable...blocks from the exhumed HP/LT Aegean subduction complex on Syros, Greece. Samples are completely serpentinized...chlorite, and magnetite. ÎŽD and ÎŽ18O values of bulk rock serpentinite powders and chips (ÎŽD = â64 to â33â° |  | Bulle, Florian, Bröcker, Michael, GĂ€rtner, Claudia, Keasling, Alan (2010) Geochemistry and geochronology of HP mĂ©langes from Tinos and Andros, cycladic blueschist belt, Greece. Lithos, 117 (1) 61-81 doi:10.1016/j.lithos.2010.02.004 | Journal (article/letter/editorial) | | from Tinos and Andros, cycladic blueschist belt, Greece Florian Bulle â, Michael Bröcker, Claudia GĂ€rtner...UâPb zircon geochronology, SrâNd isotope and bulk-rock geochemistry have been applied to meta-igneous and...mĂ©langes exposed on the Cycladic islands of Tinos, Syros and Andros. Ion microprobe (SHRIMP) UâPb zircon...chloriteâtalc schists from block-matrix contacts (Syros and Tinos) yielded Cretaceous ages of c. 80 Ma....that the block-matrix associations on Tinos and Syros can be grouped together. On a broader regional scale |  | | Journal (article/letter/editorial) | | petrology of blueschist-facies hybrid rocks from Syros (Greece): Implications for reactions at the slabâmantle...Available online 8 August 2008 Keywords: Cyclades Aegean Metasomatism Blackwall Subduction zone High-pressure...mĂ©lange zone of that type is found in northern Syros, where metasomatic reaction zones (âblackwallsâ)...formed on a metre scale at the contact of metasedimentary blueschists and serpentinite. Five different...observed succession of assemblages together with whole-rock major and trace-element compositions reïŹect the |  | | Journal (article/letter/editorial) | | Schist, Santa Catalina Island, CA, and Attic-Cycladic Complex, Syros, Greece) in order to investigate...derived from mafic blocks. In a traverse across a Syros mafic eclogite block with a narrow chlorite schist...block and serpentinite. A second sample set from Syros was chosen across a contact zone between a meta-tuffite...mobility of the HSE. All HSE were mobilized in the Syros mĂ©lange zone through fluid advection beyond the...mantle materials, creating a volatile-rich, mixed rock type with chemical and isotopic compositions that |  | | Journal (article/letter/editorial) | | greenschist-facies rocks on the island of Syros, Aegean Sea, Greece. The shear zone is steeply dipping...Barrientos & Selverstone, 1993), differences in bulk-rock composition * Corresponding author. Telephone:...blueschist preservation; fluid flux calculation; fluid^rock interaction; Si^Na metasomatism; thermodynamic modeling...setting Syros forms part of the Cyclades archipelago in the Aegean Sea (Fig. 1a). The island is situated...2008a). Geology of Syros Most rocks on Syros belong to the CBU (Fig. 1b). On Syros the CBU can be subdivided |  | | Journal (article/letter/editorial) | | FROM THE CYCLADIC BLUESCHIST UNIT ON NAXOS ISLAND, GREECE: DEFORMATION-RELATED REEQUILIBRATION VS THERMAL...of the Cycladic Blueschist Unit on Naxos Island in the Aegean Sea region. Using the average pressure-temperature... We conclude that the high-pressure rocks from south Naxos were exhumed to upper mid-crustal levels in...greenschist-facies overprint of the blueschist-facies rocks from south Naxos resulted from rapid exhumation and associated...had no impact on rock textures or Srisotopic signatures, and that the rocks of south Naxos underwent three |  | Pogge von Strandmann, P. A. E., Dohmen, R., Marschall, H. R., Schumacher, J. C., Elliott, T. (2015) Extreme Magnesium Isotope Fractionation at Outcrop Scale Records the Mechanism and Rate at which Reaction Fronts Advance. Journal of Petrology, 56 (1) 33-58 doi:10.1093/petrology/egu070 | Journal (article/letter/editorial) | | rocks of subducted crust and serpentinite in the Syros meÌlange zone. This isotopic perturbation extends... 34 FIELD AREA AND SAMPLE PETROGRAPHY The island of Syros displays a sequence of rocks of the lower unit...Complex (DuÌrr et al., 1978). The major part of the island is composed of interlayered pelitic schists and...Keiter et al., 2011). The northeastern part of the island comprises a meÌlange zone composed of metagabbros...and 13â21 GPa by several researchers for various rock types (Okrusch & Brocker, 1990; Trotet et al., 2001; |  | | Journal (article/letter/editorial) | | flow. Channelized fluid flow predicts that from a rock point of view, most formerly subducted material...dehydration reactions will not percolate through large rock volumes, but rather will be carried away from the...equilibrium between aqueous fluid and surrounding rock will only be approached at sites of fluid production...which can cause dehydration embrittlement in the rock and probably triggers intermediate-depth earthquakes...(1996) defines a closed system as a rockâfluid system in which the rock does not record âsignificantâ interaction |  | | Journal (article/letter/editorial) | | 06511, U.S.A. Abstract This paper explores bulk-rock geochemical data for a wide array of metamorphosed...certain HFSE (e.g., Nb) can be large enough to affect rock plotting positions on petrotectonic discrimination...likely be smaller for rocks that undergo less fluid-rock interaction. Gains of K and related LILE are coupled...functions of metamorphic grade, intensity of fluid-rock interaction, and tectonic setting will be an important...devolatilization during regional metamorphism of sedimentary rock-dominated sequences can attain ~103 m3 mâ2 averaged |  | Pabst, Sonja, Zack, Thomas, Savov, Ivan P., Ludwig, Thomas, Rost, Detlef, Tonarini, Sonia, Vicenzi, Edward P. (2012) The fate of subducted oceanic slabs in the shallow mantle: Insights from boron isotopes and light element composition of metasomatized blueschists from the Mariana forearc. Lithos, 132. 162-179 doi:10.1016/j.lithos.2011.11.010 | Journal (article/letter/editorial) | | isotopes MĂ©lange a b s t r a c t Serpentine muds from South Chamorro Seamount (SCS), drilled during ODP Leg...as those from the Catalina Island in California and Syros Island in Greece (e.g., Bebout, 1995; Bebout...forearc-situated seamounts such as Big Blue, Conical and South Chamorro seamounts (Fryer et al., 2006), emplaces...of such metamaïŹc clasts are recovered from the South Chamorro Seamount, with Conical, Pacman and Big...et al. (1993, 1999) examined Li, Be and B whole rock abundances of metasediments and metamaïŹc rocks from |  | | Book | | Geological Sciences University of Cape Town Rondebosch, South Africa ISSN 2510-1307 ISSN 2510-1315 (electronic)...and largest part, the description of the various rock types and mineral deposits. Emphasis is placed on.... . . . . . . . . . . . . . . . . . . . . . . . Rock-Forming and Economic Minerals. . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . . Rock Fabric . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . Principal Rock-Forming Processes . . . . . . . . . . . . . . . |
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