| | Journal (article/letter/editorial) | Petrologiche, Via Valperga Caluso 35, I-10125, Torino, Italy Version of record first published: 06 Jul 2010....Petrologiche, Via Valperga Caluso 35, I-10125 Torino, Italy Downloaded by [Fondren Library, Rice University...relics. In the Dora-Maira massif, the Brossasco-Isasca Unit includes coesite-bearing phengite-jadeite-almandinequartz...kyanite-bearing quartzites. Moreover, other lithotypes like aegirine orthogneiss, paragneiss, and micaschist also may...with hornfelses and xenoliths of the Brossasca-Isasca Unit of the southern Dora-Maira massif, Western | | | Journal (article/letter/editorial) | 00716.x Impure marbles from the UHP Brossasco-Isasca Unit (Dora-Maira Massif, western Alps): evidence...Petrologiche, Via Valperga Caluso 35, I-10125 Torino, Italy (daniele.castelli@unito.it) 2 Istituto di Geoscienze...Torino, Via Valperga Caluso 35, I-10125 Torino, Italy ABSTRACT Two impure ultrahigh-pressure (UHP) marbles...from the polymetamorphic complex of the Brossasco-Isasca Unit (BIU) (southern Dora-Maira Massif) have been...1997; Ogasawara et al., 1998). In the UHP Brossasco-Isasca Unit (in the following referred to as BIU) of southern | | Groppo, Chiara, Lombardo, Bruno, Castelli, Daniele, Compagnoni, Roberto (2007) Exhumation History of the UHPM Brossasco-Isasca Unit, Dora-Maira Massif, as Inferred from a Phengite-Amphibole Eclogite. International Geology Review, 49 (2) 142-168 doi:10.2747/0020-6814.49.2.142 | Journal (article/letter/editorial) | (2007) Exhumation History of the UHPM Brossasco-Isasca Unit, Dora-Maira Massif, as Inferred from a Phengite-Amphibole...reserved. Exhumation History of the UHPM Brossasco-Isasca Unit, Dora-Maira Massif, as Inferred from a Phengite-Amphibole...Sciences, via Valperga Caluso 35, I-10125 Torino, Italy BRUNO LOMBARDO, C.N.R., Institute of Geosciences...c/o DSMP, via Valperga Caluso 35, I-10125 Torino, Italy Downloaded by [University of Leeds] at 18:04 18...Sciences, via Valperga Caluso 35, I-10125 Torino, Italy and C.N.R., Institute of Geosciences and GeoresourcesâTorino | | | Journal (article/letter/editorial) | diorite from the southern Sesia Zone, Western Alps, Italy Keisaku MATSUMOTO and Takao HIRAJIMA Department...Micaschist Complex of the Sesia Zone, Western Alps, Italy. Both the jadeite and omphacite occur as idiomorphic...between omphacite and augite in the jadeiteâaugiteâ aegirine phase diagram of Carpenter (1983) is more concordant...Micaschist Complex of the Sesia Zone, Western Alps, Italy. The specimen is poorly retrograded by a greenschistâ...components: jadeite, aegirine and augite. The proportions of the jadeite, aegirine and augite components | | OROZBAEV, Rustam T., TAKASU, Akira, TAGIRI, Michio, BAKIROV, Apas B., SAKIEV, Kadyrbek S. (2007) Polymetamorphism of Aktyuz eclogites (northern Kyrgyz Tien-Shan) deduced from inclusions in garnets. Journal of Mineralogical and Petrological Sciences, 102 (2) 150-156 doi:10.2465/jmps.060831b | Journal (article/letter/editorial) | and figures follow Kretz (1983) except for Ae, aegirine; Mg â Trm, Mg â taramite; Wnc, winchite; Olig...before decreasing slightly at the rim (Jd40). Aegirine contents of the omphacites decrease from core...Omphacite inclusions in the garnet cores have higher aegirine contents (Jd31â43 Ae28â33 Aug21â39) than those...75 p.f.u.), phengite (Si = 6.30 â 6.53 p.f.u.), aegirine â rich omphacite (Jd31â43 Ae28â33 Aug21â39), albite...Superzoned garnets in the coesite â bearing Brossasco â Isasca Unit, Dora â Maira massif, Western Alps, and the | | | Journal (article/letter/editorial) | nyb6ite-bearing eclogite in the Donghai area, Jiangsu Province, eastern China T . HIRAJIMA Department of Geology...eclogite in the Donghai area, northeastern Jiangsu Province, eastern China. The Jianchang eclogite contains...symplectite which is mainly composed of hornblende, aegirine-augite and albite. Nyb6ite is associated with...eclogite, in the Donghai area, northeastern Jiangsu Province, eastern China, and two papers were given at the...occurs at Jianchang in Donghai County, Jiangsu province, eastern China (Fig. 1). Donghai County is situated | | | Journal (article/letter/editorial) | nyb6ite-bearing eclogite in the Donghai area, Jiangsu Province, eastern China T . HIRAJIMA Department of Geology...eclogite in the Donghai area, northeastern Jiangsu Province, eastern China. The Jianchang eclogite contains...symplectite which is mainly composed of hornblende, aegirine-augite and albite. Nyb6ite is associated with...eclogite, in the Donghai area, northeastern Jiangsu Province, eastern China, and two papers were given at the...occurs at Jianchang in Donghai County, Jiangsu province, eastern China (Fig. 1). Donghai County is situated | | | Journal (article/letter/editorial) | Scienze Mineralogiche e Petrologiche, I-10125, Turin, Italy b Anhui Institute of Geology, 230001, Hefei, Peopleâs...Geologic map of the WPU west of Xinjian, Anhui Province, East Central China. 1: Leucocratic granitic gneiss;...coronitic aegirine-augite, and jadeite (Jd) by Na plagioclase F Na amphibole and coronitic aegirine-augite...The continuous corona against quartz (Qtz) is aegirine-augite (Agt). PPL. 78 F. Rolfo et al. / Lithos...is homogeneous jadeite (Fig. 5b) with very low aegirine and diopside components and similar composition | | ANGIBOUST, S., LANGDON, R., AGARD, P., WATERS, D., CHOPIN, C. (2012) Eclogitization of the Monviso ophiolite (W. Alps) and implications on subduction dynamics. Journal of Metamorphic Geology, 30 (1) 37-61 doi:10.1111/j.1525-1314.2011.00951.x | Journal (article/letter/editorial) | stretches along the W. Alps over 350 km, from Voltri (Italy) to Zermatt-Saas (Switzerland; 2011 Blackwell...75 p.f.u.), Mn-rich garnet ± epidote ± jadeite-aegirine clinopyroxene ± hematite and occasionally chlorite...Three different omphacite generations with various aegirine contents occupying distinct micro-structural positions...characterized by high almandine (65â75 mol.%) and high aegirine contents (20â30 mol.%). Omphacite II, showing...porphyroblasts. Interestingly, an early generation of aegirine-rich omphacite I is preserved in some omphacite | | | Journal (article/letter/editorial) | Pavia, Italy Centro Grandi Strumenti, UniversitaÌ degli Studi di Pavia, I-27100 Pavia, Italy 3 MuseÌum...Jianchang eclogite pod, Su-Lu coesite-eclogite province, China. It has been approved as a new mineral...chemically-zoned eclogite in which the jadeite (+ minor aegirine) proportion of the clinopyroxene composition,...eclogite pod within the ``Norwegian coesite-eclogite provinceââ (Smith, 1984) to which the NyboÌ eclogite pod...Smith (1989) de ned the ``Su-Lu coesite-eclogite provinceââ on the basis of deduced coesite in the Lanshantou | | | Journal (article/letter/editorial) | oligoclase + amphibole and an outer layer of albite f aegirine-augite. The last stage (stage C) involved total...most garnets by taramitic amphibole + albite + aegirine-augite. Peak metamorphic P-T conditions were >...fractures are filled with fine-grained amphibole + aegirine-augite * magnetite and do not extend to the matrix...grains are defined by thin layers of fine-grained aegirine-augite which grew perpendicular to the original...fine-grained aegirine-augite (Fig. 2B). Coronas formed at jadeite-garnet contacts do not contain aegirine-augite | | Zhang, Zeming, Xiao, Yilin, Liu, Fulai, Liou, J.G., Hoefs, Jochen (2005) Petrogenesis of UHP metamorphic rocks from Qinglongshan, southern Sulu, east-central China. Lithos, 81 (1) 189-207 doi:10.1016/j.lithos.2004.10.002 | Journal (article/letter/editorial) | abbreviations are after Kretz (1983) except for Ae=aegirine, Amp=amphibole, Cel=celadonite, Coe=coesite, Dia=diamond...showing a similar character to granodiorite, (v) aegirine-bearing gneiss that contains some sodicâcalcic...Eclogite 21-2, 26, 27, 28, 36, 41, 44, 49 QLT12 Aegirine and amphibole gneiss QLT13 Garnet-bearing gneiss...orthogneisses include garnet-bearing gneiss and aegirine- and sodic amphibole-bearing gneiss. The locations...3â49.6% jadeite, 39.0â46.6% augite and 4.7â19.9% aegirine components (Table 5). Omphacite inclusions in | | | Report (issue) | metapelite from the ultrahigh-pressure Brossasco-Isasca unit (Dora-Maira Massif, Western Alps): New petrological...International Geological Congress in Florence, Italy. Constructive reviews were provided by W.G. Ernst...hydrogen isotope anomaly near Donghai in Jiangsu Province, China: Geochimica et Cosmochimica Acta, v. 66...within an orogen. The North-East Greenland eclogite province (Gilotti, 1993) contains widespread evidence for...metamorphism in the North-East Greenland eclogite province was recognized by the presence of polycrystalline | | | Report (chapter) | DSMP, Via Valperga Caluso 35, 1-10125, Torino, Italy (e-mail: lombardo@dsmp.unito.it) 2Dipartimento di...Universitd di Torino, Via Valperga Caluso 35, 1-10125, Italy Abstract: This paper presents the results of a petrographical...ranging betweeen 0.42 and 0.45, with low contents of aegirine (XAcm = 0.02-0.05). It usually contains very small...(Xjd = 0.47-0.52), but again with low contents of aegirine ( X a c m = 0.04-0.06). Rutile often occurs as...omphacite is relatively aegirine-rich, and is probably an effect of the aegirine component in clinopyroxene | | | Journal (article/letter/editorial) | Norwegian Caledonides of a specific coesite-eclogite province containing rocks that had experienced UHP metamorphic...boundaries to the west Norway U H P coesite-eclogite province. Moreover, Smith ( 1 9 8 8 ) e m p h a s i z e...regionally extensive, structurally coherent U H P province/terrane. More recent studies by Wain (1997) and...preserved in associated eclogites within the Brossasco-Isasca UHP Meta morphic Unit of the Dora-Maira massif...associated metasedimentary rocks in the Brossasco-Isasca UHP Unit of the DoraMaira massif, despite some | | | Journal (article/letter/editorial) | Torino, via Valperga Caluso 35, I-10125, Torino, Italy Research School of Earth Sciences, The Australian...the occurrence of Fe+ 3-rich minerals such as aegirine-rich pyroxene, riebeckite-rich amphibole, magnetite...oxidized and contain Fe+ 3bearing minerals such as aegirine-rich omphacite, riebeckite-rich Naamphibole, epidote...and Petrological Sciences, University of Torino (Italy). The operating conditions were: 50 s counting time... i.e. a jadeite-bearing gneiss (V2246) and an aegirine + Na-amphibole + garnet + deerite quartzite (V2248) | | | Journal (article/letter/editorial) | TORINO, VIA VALPERGA CALUSO 35, I-10125, TORINO, ITALY RECEIVED FEBRUARY 8, 2010; ACCEPTED SEPTEMBER 22...dominantly metasedimentary, units of the ocean-derived Piedmont Zone (Fig. 1a). It is one of the best preserved...crystals. The lighter core (Omp2) is richer in the aegirine component compared with the darker rim (Omp3)...0·35-0·28; XJd ÂŒ 0·25-0·35; XMg(Fetot) ÂŒ 0·40^ 0·50; aegirine^augite according to the classification of Morimoto...in the diopsidic component and depleted in the aegirine component with respect to Omp1, whereas garnet | | Manzotti, Paola, BallĂšvre, Michel, Pitra, Pavel, Putlitz, Benita, Robyr, Martin, MĂŒntener, Othmar (2020) The Growth of Sodic Amphibole at the Greenschist- to Blueschist-facies Transition (Dent Blanche, Western Alps): Bulk-rock Chemical Control and Thermodynamic Modelling. Journal of Petrology, 61 (4) doi:10.1093/petrology/egaa044 | Journal (article/letter/editorial) | parallel to the stretching lineation. Pale green aegirineâaugite is dispersed in an albiteâquartz matrix...glaucophane. Although some researchers described aegirineâaugite in the DBTS (e.g. De Leo et al., 1987;...and pyrite (<1 %). 9 Clinopyroxene is mainly aegirineâaugite (jd25âaeg35â quad40, sample OL43; Figs...in the hornblendite (sample OL02, site 1). (b) Aegirineâ augite surrounded by magnesioriebeckite in the...of the Berrio Gabbro (sample OL68, site 2). (f) Aegirineâaugite crystals from the blue amphibole-gneiss | | | Journal (article/letter/editorial) | by the formation of early retrograde minerals: aegirine + diopside + garnet + glaucophane + quartz + rutile...very-high-pressure eclogitic rocks from the Brossasco-Isasca Complex, DoraMaira Massif, Italian Western Alps | | | Report (chapter) | 3b). This clinopyroxene plots in the augite âaegirine field (Fig. 5). The foliation is defined by the...compositions of chloromelanite (Jd48) and augiteâ aegirine (Table 1 and Fig. 5). Glaucophane is commonly...eclogite 05.8A Barr eclogite Aegirine 25 S618 Tin Hama eclogite 30 augite aegirine * chloromelanite 15...very-high-pressure eclogitic rocks from the BrossascoâIsasca Complex, Dora Maira Massif, Italian Western Alps | | Wen, Jiabao, Shi, Guanghai, Xing, Biqian, Long, Taafee, Zhang, Jinhong (2023) Unique Interstitial Textures within Coarse-Grained Jadeitite from Kazakhstan and Their Significance in Locality Identification. Minerals, 13 (4) 513 doi:10.3390/min13040513 | Journal (article/letter/editorial) | Creek [12]), Papua New Guinea [13], Greece [14], Italy [15], Iran [16], Myanmar [17,18], Russia [19], and...Anlâanalcime, Aeâaegirine, and Quad: CaâMgâFe pyroxene). Ompâomphacite, Anlâanalcime, Aeâaegirine, and Quad:...the ultra-high pressure Brossasco-Isasca unit (Western Alps, Italy). J. Maps 2012, 8, 465â472. [CrossRef] | | Hunziker, D., Burg, J.-P., Moulas, E., Reusser, E., Omrani, J. (2017) Formation and preservation of fresh lawsonite: Geothermobarometry of the North Makran Blueschists, southeast Iran. Journal of Metamorphic Geology, 35 (8) 871-895 doi:10.1111/jmg.12259 | Journal (article/letter/editorial) | whereas fewer grains classify as omphacite or aegirine-augite (Figure 7; Table 2d). Jadeite is typically...mineral. The content is generally ~Jd70, whereas aegirine content is low (Ae0-24). Fine grained pyroxene... (2007). Impure marbles from the UHP BrossascoâIsasca Unit (DoraâMaira Massif, western Alps): evidence...glaucophanites of the lower St. Marcel valley (Aosta, Italy). Ofioliti, 14, 135-156. Maruyama, S., Suzuki, K...Quad 80 80 50 45 aegirine-augite 20 20 20 20 pigeonite jadeite aegirine clinoenstatite NaFe3+Si2O6 | | | Journal (article/letter/editorial) | concentration of another sodic end member acmite (aegirine) in clinopyroxene from eclogiteâamphibolite complexes...Ultrahigh-pressure kyanite eclogites from the Sulu province in China (Enami and Nagasaki, 1999) contain progradely...âSuperzoned Garnets in the Coesite-Bearing Brossasco-Isasca Unit, DoraMaira Massif, Western Alps, and the Origin...Eclogites from Junan in the Sulu Ultrahigh-Pressure Province, Eastern China,â Island Arc 8, 459â474 (1999)...for the Voltri Massif Eclogites (Ligurian Alps, Italy),â J. Metamorph. Geol. 23, 533â555 (2005). 38. A | | Du, J. X., Zhang, L. F., Bader, T., Chen, Z. Y., LĂŒ, Z. (2014) Metamorphic evolution of relict lawsonite-bearing eclogites from the (U) HP metamorphic belt in the Chinese southwestern Tianshan. Journal of Metamorphic Geology, 32 (6) 575-598 doi:10.1111/jmg.12080 | Journal (article/letter/editorial) | end-members follow Whitney & Evans (2010) except ag (aegirine-augite); all other abbreviations are explained...OmpA and OmpB vary widely in composition with aegirine (Aeg) and wollastonite + enstatite + ferrosilite...composition of OmpC scatters less, with lower aegirine (~10 to ~25 mol.%) and higher WEF (~34 to ~48...increase in the jadeite content and a decrease in the aegirine content. © 2014 John Wiley & Sons Ltd Omphacite...47 mol.% to 45â54 mol.% and a decrease in the aegirine content from 14â27 mol.% to 3â18 mol.% (Table | | | Journal (article/letter/editorial) | H2O-undersatured conditions. âCpxâ refers to a jadeiteâaegirineâomphacite solid solution with variable composition...the metamorphic peak. âCpxâ refers to a jadeiteâaegirineâomphacite solid solution with variable composition...Bohemian Massif Betic Cordillera, Spain Sezia zone, Italy Rhodope, Greece Tso Morari, India Adula Nappe, Switzerland...Switzerland Ambin Massif, France Grand Paradiso, Italy Sardinia, Italy Iberian Massif, Spain Turkey Q6 Raspas Complex...an example from Lago di Cignana, western Alps, Italy. Earth Planet. Sci. Lett., 215, 57â72. Le Bayon |
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