 | KIENAST, J. R., LOMBARDO, B., BIINO, C., PINARDON, J. L. (1991) Petrology of very-high-pressure eclogitic rocks from the Brossasco-Isasca Complex, Dora-Maira Massif, Italian Western Alps. Journal of Metamorphic Geology, 9 (1) 19-34 doi:10.1111/j.1525-1314.1991.tb00502.x | Journal (article/letter/editorial) | | Terra, Via Valperga Caluso 37, 1-70725 Torino, Italy Mineralogisch-Petrographisches Institut, Universitat...Dora-Maira Massif between Brossasco, Isasca and Martiniana (Italian Western Alps) and for a sodic whiteschist...associated with the pyrope-coesite whiteschists of Martiniana. The Brossasco-Isasca (BI) eclogites are fine...varieties associated with leucocratic layers with quartz, jadeite and garnet. These features differentiate...glaucophane yet described in the sodic whiteschist. Quartz pseudomorphs of coesite were found occasionally |  | | Journal (issue) | | altissima pressione dell'unità BROSSASCO-ISASCA (CUNEO) Ambrino P. - Brizio P. L a storia mineralogica...montagne poste fra le basse valli Po e Varaita in provincia di Cuneo comincia nel 1952 quando Peter Bearth...massiccio Dora-Maira, il ritrovamento, presso Martiniana Po, di rocce a quarzo e mica chiara contenenti...natura contenendo solo dal 2 al 1O% di almandino a Case Ramello in grosse masse sino a 25cm di diametro...abbondantemente nell'affioramento di Case Parigi o meglio Case Ramello, di norma in masse allotriomorfe |  | | Journal (article/letter/editorial) | | of Torino, 35 Via Valperga Caluso, 10125 Torino, Italy b Department of Geology and Mineralogy, Graduate...Al-contents and high KrŽK q Na. and MgrŽMg q Fe. ratios. Quartz, phengite, kyanite and magnesian minerals such...Epidote-blueschist-facies APinerolo unitB; Ž2. Quartz-eclogite-facies ASan Chiaffredo unitB; Ž3. Coe...which contains the studied superzoned garnets; Ž4. Quartz-eclogite-facies basement unit, overlying the Brossasco-Isasca.... Locality symbols—B: Village of Brossasco; CR: Case Ramello; Is: Village of Isasca; SC: San Chiaffredo |  | Campomenosi, Nicola, Rubatto, Daniela, Hermann, Joerg, Mihailova, Boriana, Scambelluri, Marco, Alvaro, Matteo (2020) Establishing a protocol for the selection of zircon inclusions in garnet for Raman thermobarometry. American Mineralogist, 105 (7). 992-1001 doi:10.2138/am-2020-7246 | Journal (article/letter/editorial) | | University of Genoa, Corso Europa 26, 16132 Genoa, Italy 2 Institute of Geological Sciences, University of...University of Pavia, Via A. Ferrata, 1 27100 Pavia, Italy Abstract The structural and chemical properties...megablasts from the Dora Maira Massif (Western Alps, Italy) were characterized in detail using charge contrast...suite from the Dora Maira UHP unit (Western Alps, Italy), where garnet megablasts host abundant zircon inclusions...Vallone Gilba and Vallone Martiniana close to the Case Fapina and Case Parigi localities, respectively |  | | Journal (article/letter/editorial) | | metamorphism in the Dora Maira Massif (western AIp$, Italy), using an ultra-violet laser ablation microprobe...analysis, at a spatial resolution of 50 I.tm, of quartz, phengite, biotite and K-feldspar. The results...older than the true closure age. In the present case, some ages in the range 60-110 Ma could be explained...a variety of minerals, including feldspars and quartz, to metamorphic microtextures. The results yield...in the range 380-304 Ma obtained on gneisses at Parigi, a few kilometers to the north (Tilton et al. 1991) |  | | Journal (article/letter/editorial) | | Torino, Via Valperga Caluso 35, I-10125 Torino, Italy (simona.ferrando@unito.it) 2 Department of Earth...University of Siena, Via Laterina 8, I-53100 Siena, Italy 3 Department of Earth Sciences, University of Perugia...Perugia, P.zza Università 1, I-06100 Perugia, Italy ABSTRACT The ultrahigh-pressure pyrope whiteschists...(Western Alps) – i.e. talc-phengite-kyanite-pyrope-quartz( ⁄ coesite) rocks characterized by an extremely...BIU whiteschists, in particular from the Po Valley in Italy, have constrained a P–T evolution characterized |  | | Journal (article/letter/editorial) | | in the BrossascoIsasca unit of the Western Alps, Italy. This unit is composed of a basement that underwent...lenses and layers of talc–phengite–kyanite–pyrope–quartz–coesite schists within a metagranite. The whiteschists...wollastonite for Ca, corundum for Al, apatite for P and quartz for Si. Trebilcock (J. Pyle) and 8153 (R. Stern)...predicted by Stacey and Kramers (1975) model, but in the case of monazite with high f206 the common Pb composition...from the whiteschist lens that outcrop at the Case Parigi locality (Chopin 1984; Schertl and Schreyer 2008) |  | Sousa, J., Kohn, M. J., Schmitz, M. D., Northrup, C. J., Spear, F. S. (2013) Strontium isotope zoning in garnet: implications for metamorphic matrix equilibration, geochronology and phase equilibrium modelling. Journal of Metamorphic Geology, 31 (4) 437-452 doi:10.1111/jmg.12028 | Journal (article/letter/editorial) | | Ma), southern Chile (c. 75 Ma) and northwestern Italy (c. 35 Ma). Both normal Sr isotope zoning (increasing...and the Italian Alps (WS). Most inclusions were quartz and ilmenite, which should not affect the Rb-Sr...diffusion along grain boundaries is slow. In this case, preferential uptake of Sm by the garnet will reduce...detrital apatite data from the Himalaya as an extreme case, Nd isotope values of detrital grains might vary...(Dragovic et al., 2012; Fig. 6b). In the former case (Fig. 6a), a whole-rock composition would combine |  | | Book (edition) | | Republic). W.D. Birch (Australia), Elena Bonaccorsi (Italy), Ernst A.J. Burke (Netherlands), L.J. Cabri (Canada)...M. Dcliens (Belgium). Giancarlo Delia Ventura (Italy), T.S. Ercit (Canada). Alexander Falster (USA)....(Canada). L.A. Groat (Canada). Alessandro Guastoni (Italy), William A. Henderson. Jr. (USA). D.D. Hogarth...(ltaly). Igor Pekov (Russia), atale Perchiazzi (Italy). Ole V. Petersen (Denmark). Fedcrico Pezzotta (ltaly)...2nd ed. Doklady k sobraniyu Mezhdunarodnoy komissii po izucheniyuglin Dizhi Pinglun Doklady Rossiiskoi Akademii |  | | Journal (article/letter/editorial) | | bearing whiteschist outcrop (locality Case Parigi close to Martignana Po) of the Brossasco Isasca complex...crystals were not close to the analyzed surface. In any case, Ti was monitored in order to discard surface analyses...silvite 50.46 1c 73.85 4 74.25 1a 74.3 5 1b on a-quartz, 1c on talc Fig. 4 Si 2p peak (XPS spectra;...Si 2p in tetrahedral structures (for example in quartz Si 2p is at 103.4 eV). Two hypotheses can be formulated:...literature Al 2p value of gibbsite (but also in this case, Al is in a gibbsite like sheet). After Ar+ sputtering |
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