 | Canet, C., Alfonso, P., Melgarejo, J.-C., Jorge, S. (2003) V-RICH MINERALS IN CONTACT-METAMORPHOSED SILURIAN SEDEX DEPOSITS IN THE POBLET AREA, SOUTHWESTERN CATALONIA, SPAIN. The Canadian Mineralogist, 41 (3) 561-579 doi:10.2113/gscanmin.41.3.561 | Journal (article/letter/editorial) | | Lower Llandoverian metasedimentary rocks of the Prades Mountains, southwestern Catalonia, Spain, consist...métasédimentaires du Silurien Inférieur des montagnes de Prades, dans le sud-ouest de la Catalogne, en Espagne...Massif and the Montagne Noire district in southern France. Most of the reported occurrences occur in Carboniferous...base. In some of these Silurian deposits in the Prades Mountains, near the monastery of Poblet, in the...history of the area. GEOLOGY OF THE PRADES MOUNTAINS The Prades Mountains are located at the southern |  | | Journal (article/letter/editorial) | | 31400, Toulouse, France c CNRS, LMTG, 14 Avenue Edouard Belin, 31400, Toulouse, France d UPS,LMTG, 14 Avenue...Avenue Edouard Belin, 31400, Toulouse, France Received 2 November 2005; received in revised form 11...0 17.5 3.0 2.8 Cpx Opx Amp Tur Mic Chl Crn Oxf Py Ap 0.5 42.5a 5.5 4.0 4.0 0.5 0.5 3.0 22.5 0.5...3.0 Zrn Ttn Ep Cpx Opx Amp Tur Mic Chl Crn Oxf Py Ap 2.3 4.3 10.0 0.5 86.8 8.0 23.8 18.0 33.8...Oxf: association with ilmenite, hematite, magnetite; Py: pyrite; St: staurolite; Ttn: titanite; Tur: tourmaline; |  | Aguilar, C., Liesa, M., Štípská, P., Schulmann, K., Muñoz, J. A., Casas, J. M. (2015) P-T-t-devolution of orogenic middle crust of the Roc de Frausa Massif (Eastern Pyrenees): a result of horizontal crustal flow and Carboniferous doming?. Journal of Metamorphic Geology, 33 (3) 273-294 doi:10.1111/jmg.12120 | Journal (article/letter/editorial) | | Universit e de Strasbourg, 67084 Strasbourg Cedex, France 3 Center for Lithospheric Research, Czech Geological...and decrease in almandine and XFe towards the rim; there is a slight increase in almandine, spessartine...Wiley & Sons Ltd P– T–t –d PATHS IN THE EASTE RN PY RENEES 11 (a) (b) Fig. 7. Chemical zoning profiles...Wiley & Sons Ltd P– T–t –d PATHS IN THE EASTE RN PY RENEES 13 (a) (b) (c) (d) Fig. 8. P–T pseudosection...observed assemblage is cd–bi–g– sill–q–pl–ilm, with almandine content at the garnet rim between 0.78 and 0 |  | | Journal (article/letter/editorial) | | a small but significant dependence on garnet almandine content. This dependence is rationalised using...composition Ž X . and pressure Ž P .: ˚ x s 0.930 X Py q 0.993 XGr q 0.916 XAlm q 0.946 X Spes q 1.05 Ž...ŽPy 79 Gr21 and Py81Gr19 , respectively., but almandine contents spanning the majority of compositions...basalts ŽLonghi, 1992.. Garnets have compositions Py 72 Gr19 Alm 9 and Py56 Gr13 Alm 31 , reTable 3 Major...element composition of experimental products 16 ŽGrt: Py 72 Gr19 Alm 9 . FeO CaO MgO Al 2 O 3 SiO 2 Total |  | | Journal (article/letter/editorial) | | sr quartz vein disscminatioa quartz vein P+PY P+PY P+PY 33.4 f 0.2 33.1 f 0 . 3 32.9 f 0.5 530-500...-3.6 to -4.4 -3.6 to -5.0 RB RB p = pyrrhotite; py = pyrite. AsLa, FeKa, 15kV, 2000f100cps, 100s) using...= arsenopyrite in veins from locality ST.Legend: py = pyrite, apy = arsenopyrite, po = pyrrhotite, lo...(1) daphnite + muscovite + quartz = annite + almandine + H,O, Xda,,,= 1. X, = 1; (2) same reaction, Xda...destabilization of daphnite + muscovite + quartz is almandine garnet + biotite. The reaction for the observed |  | Quartieri, S., Antonioli, G., Geiger, C. A., Artioli, G., Lottici, P. P. (1999) XAFS characterization of the structural site of Yb in synthetic pyrope and grossular garnets. Physics and Chemistry of Minerals, 26 (3) 251-256 doi:10.1007/s002690050184 | Journal (article/letter/editorial) | | synthetic pyrope and grossular garnets (henceforth Yb-Py and Yb-Gr, respectively). This method offers the...piston-cylinder device at 1200 C and 25 kbar. The Yb-Py was run for 5 hours and Yb-Gr for 4 hours. The experimental...for a0 (in ) are 11.4618(1) and 11.8504(2) for Yb-Py and Yb-Gr, respectively. They are different with...12 oxygens) of Yb-bearing pyrope and grossular Yb-Py Yb2O3 CaO MgO Al2O3 SiO2 1.4(6) ± 28.7(6) 25.2(9)...and 343 K at the GILDA beamline (ESRF, Grenoble, France) operated at 6 GeV. Only the 77 and 343 K data |  | | Journal (article/letter/editorial) | | Hospitalet gneiss domes of the central Pyrenees (France, Andorra) J . E . M E Z G E R 1 , * A N D J - L...gneiss domes of the central Axial Zone, Pyrenees (France, Andorra). Within a 200 m wide zone, staurolite...1986; Besson, 1996; Mezger, 2005). Restricted France Bayonne Early Carboniferous granitoids No rth...Sons Ltd K-POO R STAURO LITE–CORDIER ITE SCHI STS PY RENEES 169 1°30’ Northern Pyrenean zone yren Vicdessos...Powell et al. (1998): als = aluminosilicate, alm = almandine, an = anorthite, and = andalusite, ann = annite |  | | Journal (article/letter/editorial) | | over different length scales. The pyrope-grossular (Py-Gr) solid solution is given special attention, because...Computational and experimental investigations made on Py-Gr garnets indicate that the shorter Ca/Mg-O2 bond...component in the solid solution. Bond behavior in almandine-spessartine (Al-Sp) garnets appears to be partly...analysis shows that various computational simulations on Py-Gr solid solutions are consistent with each other...thermodynamic mixing behavior of Py-Gr garnets. Micro/nanostrain for the Py-Gr binary is asymmetric in nature |  | | Journal (article/letter/editorial) | | Crystal Field Stabilization Energies of Almandine-Pyrope and Almandine-Spessartine Garnets Determined by FTIR...transitions located between 4000 and 9000 cm 1 in almandine-pyrope and almandinespessartine garnets solid...orbitals. The CFSE show a slight increase along the almandine-spessartine binary from 3730 to 3810 cm-1 and...larger increase from 3730 to 3970 cm ~ for the almandine-pyrope binary. Dodecahedral Fe2+-site distortion...3.5 times larger in magnitude along the join almandine-pyrope, where an interaction parameter of W - |  | | Journal (article/letter/editorial) | | end-member composition andradite, pyrope, and almandine are measured. Both a natural and synthetic andradite...of synthetic end-member katoite, pyrope, and almandine also recorded at low temperature. These garnets...substitution. The measured IR spectra of natural almandine- and pyrope-rich (Dora Maira, Italy) crystals...natural nearly end-member andradite, pyrope, and almandine garnets. The spectra are then compared with their...terms of almandine, three different natural samples, belonging to the some of the most almandine-rich crystals |  | | Book | | metapelites in Australia 7A-4 Low-pressure metapelites in France and Spain 7A-5 Low-pressure metapelites in North...anthophyllite and gedrite 8B-6 Muscovite and biotite 8B-7 Almandine garnet 8B-8 Calcic clinopyroxene 8B-9 Orthopyroxene...i 10 20 30km eer ey Unrecrystallized area Almandine zone Chlorite zone Plutons Biotite zone iH)...isothermal curves. The thermal axis lies within the almandine zone. The blank area seen in the lower-right and...kyanite, sillimanite and cordierite are common. Almandine, garnet and staurolite may also occur. Rocks of |  | | Journal (article/letter/editorial) | | garnetsand the Molar volumesof mixingof almandine-pyrope and almandine-spessartine garnets propertiesof the...The aluminosilicate garnet binaries almandine-pyropeand almandine-spessartine studied by powder X-ray...Refinementsof the unit-cell constantsalong the almandine-pyropejoin show that the volumes of mixing are...positive deviations from ideality, which of the almandine-spessartine ' can be fitted with a symmetric model...small amounts sf terpsr+,which in the case of almandine-pyropegarnetsis also measurablefrom microprobe |  | | Journal (article/letter/editorial) | | consist of well-crystallized pure sillimanite, almandine-rich garnet (Fe/[Fe + Mg] ¼ 0.84–0.92), Ferich...retrogression product of ‘‘prismatic’’ sillimanite. Almandine is generally associated with biotite, ilmenite...Fe-cordierite. Embayment textures develop in almandine when it is found close to hercynite. Normally...ilmenite (Ilm); 100x. (C) Garnet/biotite pair (Alm: almandine; Bt: biotite; Crd: cordierite); 100x. (D) Sub-idiomorphic...sample analysed by EPMA. Ilm, ilmenite; Alm, almandine; Bt, biotite; Hc, hercynite; Fac, ferroactinolite; |  | | Journal (article/letter/editorial) | | Abstract Local heterogeneities in pyrope-almandine, almandine-grossular and pyrope-grossular solid solutions...linear behaviour for Py-Alm, but show positive variations from linearity for Alm-Gr and Py-Gr systems. An eective...of the line broadening were found for Alm-Gr and Py-Gr and have a shape similar to the enthalpy of mixing...spectra were recorded for the end-members pyrope, almandine and grossular and far-IR and mid-IR low-temperature...explanation for the heat capacity anomaly found for Py-Gr solid solution at low-temperatures. Key words |  | | Journal (article/letter/editorial) | | clinochlore daphnite Fe-chloritoid coesite diaspore almandine Ann Phl ~e,[AlSi,O,,l(OH), Kk&,[AfSi,O,,l(OH)...pyrophyllite quartz Fe-stilpnomelane talc Al-talc PY Gru Kao Kf Chlorite (Chl) Chloritoid Coesite Diaspore...5 R6 R7 R8 R9 RlO Tc = 3En+Cs+H,O Tc+Ky = Py+2Cs+H,O Ms+Py =Phl+2Ky+Qz 3MAC = 3Qz+2Kf+Phl+2HZ0 3MAC +...3MAC+3Ky+H,O = 3Ms+Tc+2Cs 3MAC + 4Ky = 3Ms + Py + 4Qz 3MAC + 4Ky = 3Ms + Py + 4Cs 2Tc + 3Ky + H,O = 3Al-Tc + 2Qz...considered: pyrope a, = 11.4255 A (Massonne, 1997); almandine a, = 11.5350 A (this work); kJanite a,, = 7.1217 |  | | Journal (article/letter/editorial) | | Infrared spectra of synthetic almandine-grossular and almandine-pyrope garnet solid solutions: evidence...Abstract The infrared (IR) spectra of almandine-grossular and almandine-pyrope garnet solid solutions have...in almandine-grossular garnets and mimic the form of its molar volume of mixing curve. Almandine-pyrope...developed along the almandinepyrope join, because almandine and pyrope have relatively similar molar volumes...infrared (IR) spectra of almandine-grossular (A1-Gr) and almandinepyrope (Al-Py) garnets to investigate |  | | Journal (article/letter/editorial) | | (IR) reflectance spectra across the pyrope-almandine [Py-Al : (Mg,Fe,-")rAlrSirO,rl binary. The effect...spectraof four additional natural garnets,PyrAlrrSp,oand Py,oAlr.Sp,o, where Sp denotes spessartine(MnrAlrSirO...between frequency and composition along the pyrope-almandine join. The remaining mode, assignedto translations...grossularcontents lie on the trends defined by the pyrope-almandine sampleswith n€gligible impurities. However, one...mixing should be close to ideal for the pyrope-almandine seriesbecausethe lattice contribution dominates |  | | Report (chapter) | | principal garnet end-member compositions (pyrope, almandine, spessartine, uvarovite, grossular and andradite)...necessary to calculate the common garnet end-members (almandine, andradite/schorlomite, grossular, pyrope, spessartine...skarn ore-bodies. Specific gravity (D) Pyrope Almandine Spessartine Uvarovite Grossular Andradite 3.58...solution series: the Pyralspite group (pyrope, almandine and spessartine) and Ugrandite group (uvarovite...end-members for the Pyralspite garnets: pyrope, almandine and spessartine. Pyrope. Mg3Al2Si3O12-rich garnets |  | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | 1A rue de la Férollerie, 45071 Orléans Cedex 2, France Ph.Sonnet Sonnet P. Département des Sciences du...pyrrhotite as the dominant sulfide, garnet with high almandine and spessartine component, and elevated gold contents...mineralized skarns present the prograde stage with almandine, diopside, anorthite, and actinolite-magnesiohornblende...aplitic granites None observed Endoskarn; ep, mo, py 579±4 to Endoskarn 555±5 Ma bt granite batholith;...(hbl), ttn, qtz, mc mgt, po, cp, py, sch, mo, <py, cp, bn Sch (early finegrained; late |  | Bull, J. N., Tennant, W. C., Ballaran, T. Boffa, Nestola, F., McCammon, C. A. (2012) Anisotropic mean-squared-displacement tensor in cubic almandine garnet: a single crystal 57Fe Mössbauer study. Physics and Chemistry of Minerals, 39 (7) 561-575 doi:10.1007/s00269-012-0512-1 | Journal (article/letter/editorial) | | Anisotropic mean-squared-displacement tensor in cubic almandine garnet: a single crystal 57Fe Mössbauer study...crystal plate cut from a naturally-occurring almandine-rich single crystal (Alm69Pyr19Spe8Gro4) from...observed in Mössbauer spectra of polycrystalline almandine, the GKE is apparently predominant. Keywords Mössbauer...Petrology, University of Padova, 35137 Padua, Italy Almandine, ideal formula Fe3Al2(SiO4)3, has been widely...(McCammon et al. 1998) on small single crystals of almandine garnet obtained as inclusions from diamonds produced |  | | Journal (article/letter/editorial) | | relationships for two of these, the invariant points (Py) and (Cd) in the end-member system are self explanatory...assemblages at these invariant points are Cd-En-Py-Si-Qz and Cd-En-Py-Ky-Qz. The metastable extensions of each...sillimanite (Si), kyanite (Ky), enstatif~ (En), pyrope (Py), sapphirine (Sa), spinel (Sp), hercynite (He), olivine...known. The limiting reaction for the breakdown of almandine (in the presence of plagioclase) i.e. fayalite+...fayalite+ h e r c y n i t e + quartz~-'-almandine has been taken from the results on the ]30 composition (ttensen |  | | Journal (article/letter/editorial) | | hercynite-quartz are: 3 Hercynite+ 5 Quartz = 1 Almandine + 2 Sillimanite [Journal cf Pttnhfy, VoL 27, Part...Fe-Cordierite (2) 3 Hercynite+ 3 Sillimanite = 1 Almandine + 5 Corundum (3) Equilibria (1) and (3) have...relative stabilities of hercynite-quartz and almandine-sillimanite as a function of pressure and temperature...Delaware and a synthetic almandine garnet crystallized from a glass of almandine composition were used.... LiF, and PET crystal spectrometers. Natural almandine garnet and kyanite were used as standards. Standard |  | | Journal (article/letter/editorial) | | of pyrrhotite-rich hedenbergite-actinolite and almandine-hornblende skarns, are dated by a concordant U-Pb...5.9, n = 7), both defined by allanite-bearing almandine and by cogenetic scheelite. These ages demonstrate...the Fe-Mg exchange thermometry of almandine-biotite and almandine-hornblende pairs. Calcic-potassic mineral...reaction of biotite + cummingtonite + anorthite to almandine + grossular + biotite. The pressure estimate confirms...the skarn U-Pb age proceeded in stages. First, almandine was separated from gold skarn hosted by grunerite-quartz |  | | Journal (article/letter/editorial) | | Ternary excesspropefties of grossular-pyrope-almandine influence in geothermobarometry R. G. BBnnaaN...Newton (1989) involving grossular (Gr)-pyrope (Py)-almandine (Alm) solid solutions have been analyzedin conjunction...ternary dataare consistent with the strongly nonideal Py-Alm parameters of Ganguly and Saxena's(1984) preferred... however, with small nonideality on the Py-Alm join. The Py-Alm calibrations of Hackler and Wood (1989)...equal to zero. The strong influence of the ternary Gr-Py-Alm interaction parameterin thermobarometry calculations |  | Milani, S., Nestola, F., Alvaro, M., Pasqual, D., Mazzucchelli, M.L., Domeneghetti, M.C., Geiger, C.A. (2015) Diamond–garnet geobarometry: The role of garnet compressibility and expansivity. Lithos, 227. 140-147 doi:10.1016/j.lithos.2015.03.017 | Journal (article/letter/editorial) | | Available online 30 March 2015 Keywords: Pyrope Almandine Bulk modulus Thermal expansion Diamond Entrapment...crystal pyrope (Py, Mg3Al2Si3O12) and the P–V EoS for synthetic single crystals of almandine (Alm, Fe3Al2Si3O12)...Å3, KT0 = 172.6(1.5) GPa and K′ = 5.8(5) for almandine and V0 = 1516.32(13) Å3, KT0 = 167.2(1.7) GPa...composition. The unit-cell volume along the pyrope–almandine join changes linearly within the error of measurement...and are composed of more than 90% pyrope and almandine components, S. Milani et al. / Lithos 227 (2015) |
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