 | | Journal (article/letter/editorial) | | metamorphic sequence? New high-spatial resolution petrological data for the New Caledonia case study A. Vitale...2013 Abstract The metamorphic belt of northern New Caledonia represents one of the best-exposed example...very low-grade lawsonite-bearing to high-grade epidote-bearing eclogite assemblages. Despite the general...as major tectonic discontinuities. We present a new and extensive metamorphic dataset acquired by means...7193, UPMC Sorbonne UniversiteĢs, 75005 Paris, France e-mail: alberto.vitale-brovarone@impmc.upmc.fr |  | | Journal (article/letter/editorial) | | 2000, 18, 79ā90 Hydration of eclogite, Pam Peninsula, New Caledonia C . J. C A R SON , 1, * G . L . C L...barroisite-bearing eclogite facies metabasites in northern New Caledonia. The mineralogical evolution can be modelled...P#9 kbar. Key words: eclogite; glaucophanite; New Caledonia; pseudosection. I N T R O D U C T IO N Garnet...located on the Pam Peninsula, northern New Caledonia (Fig. 1a). Rocks of the Pam Peninsula have been divided...Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06511, USA. Ā© Blackwell Science |  | | Journal (article/letter/editorial) | | record of high-pressure metasedimentary rocks of New Caledonia: Implications for regional tectonics of the...record of highpressure metasedimentary rocks of New Caledonia: Implications for regional tectonics of the...record of high-pressure metasedimentary rocks of New Caledonia: implications for regional tectonics of the...high-pressure metamorphic belt of CE Northern New Caledonia. We use these data to evaluate the sedimentary...eastwards and accumulated into the East RI New Caledonia Basin. Palaeozoic and Precambrian zircon grains |  | TSUJIMORI, T, SISSON, V, LIOU, J, HARLOW, G, SORENSEN, S (2006) Very-low-temperature record of the subduction process: A review of worldwide lawsonite eclogites. Lithos, 92 (3) 609-624 doi:10.1016/j.lithos.2006.03.054 | Journal (article/letter/editorial) | | History, Central Park West at 79th Street, New York, New York 10024-5192, USA Department of Mineral Sciences...is commonly overprinted by higher-temperature epidote-bearing assemblages; greenschist- or amphibolite-facies...Dominican Republic, record maximum temperature in the epidote-stability field. Formation and preservation of...assemblages are Early Paleozoic in Spitsbergen and the New England fold belt of Australia; this suggests that...porphyroblasts that have prograde chemical zoning. Higher-T epidote-bearing assemblages overprint the matrix of some |  | | Journal (article/letter/editorial) | | evolution of peridotites and serpentinites of NE New Caledonia: prograde interaction between continental margin...ABSTRACT The PoueĢbo and Diahot terranes of NE New Caledonia mostly comprise eclogite to blueschist facies...been linked with the SW-directed obduction of the New Caledonian Ophiolite, an extensive ultramaļ¬c nappe...Serpentinite emplacement accompanied burial of the NE New Caledonian margin at T<500 C and P<16 kbar. The...rocks and ultramaļ¬c masses suggest that NE New Caledonia preserves a fossil slab ā mantleāwedge boundary |  | | Journal (article/letter/editorial) | | with subtly highergrade conditions resulting in epidote blueschists in equivalent rock compositions (Black...commonly recrystallized to greenschists and/or epidote amphibolites (Ernst, 1973; England & Thompson,...in the context of high-P Eocene rocks in northern New Caledonia (Fitzherbert et al., 2005). The pseudosections...HIGH-P ROCKS IN NORTHERN NEW CALEDONIA High-P rocks of the Pam Peninsula in NE New Caledonia can be divided...PoueĢbo terrane, and lawsoniteāblueschists and epidoteāblueschists of the Diahot terrane (Clarke et al |  | | Journal (article/letter/editorial) | | low-temperature recrystallization of zircon from New Caledonia, and their signiĆcance for trace element incorporation...zircon grains in a phengite-epidote-chlorite schist from north-eastern New Caledonia contain as inclusions...alteration event in the high-P belt of northeastern New Caledonia. The survival of this low-temperature mineral...inclusions in the altered zircon cores represent a new occurrence for these minerals and suggest that they...THORTVEITITE AND YTTRIALITE IN ZIRCON FROM NEW CALEDONIA In this paper, we report multiple episodes |  | | Journal (article/letter/editorial) | | Lawsonite---Omphacite-Bearing Metabasites of the Pam Peninsula, NE New Caledonia: Evidence for Disrupted Blueschist-...all rights reserved The Diahot terrane of NE New Caledonia contains an interbedded sequence of Cretaceous...WORDS: pseudosection blueschist; eclogite; New Caledonia; CNFMASH; INTRODUCTION Downloaded from http://petrology...emplaced during late-stage faulting. In the light of new petrological data from the Diahot terrane metabasites...redefines the Eocene P---T profile exposed in NE New Caledonia. A critical aspect of the re-evaluation is the |  | | Journal (article/letter/editorial) | | eclogite facies mineral equilibria, Pam Peninsula, New Caledonia B. A. MARMO, 1 G. L. CLARKE 1 A N D...maps collected using eclogite samples from northern New Caledonia in order to determine the chemical composition...proportions and mineral textures observed in the New Caledonian eclogites can be closely modelled by progressively...assemblages. Keywords: eclogite; mineral equilibria; New Caledonia; NCFMASH; pseudosection. IN TROD UCTI ON Metamorphic...chemical composition of its equilibrium-volume. In the New Caledonian eclogites, inclusions of lawsonite, chlorite |  | | Journal (article/letter/editorial) | | application to the PoueĢbo Terrane, Pam 2 3 2 2 Peninsula, New Caledonia C . J . C A R S O N1, R . POW EL...medium-T PoueĢbo terrane of the Pam Peninsula, northern New Caledonia includes barroisite- and glaucophane-bearing...words: CNFMASH; eclogites; H O availability; New Caledonia; pseudosections. 2 I NTR O D U CT I O N The...of GoĢmezPugnaire et al. (1997; Nerkau Complex, northern Urals) and Meyre et al. (1997; Adula Nappe, Central...metabasic eclogites of the PoueĢbo terrane, New Caledonia. As a basis for this, a quantitative petrogenetic |  | | Journal (article/letter/editorial) | | com/locate/lithos High-pressure veins in eclogite from New Caledonia and their significance for fluid migration in...eclogite in the PouĆ©bo Eclogite Melange of northern New Caledonia. Isotopic and geochemical evidence indicates...Elsevier B.V. All rights reserved. Keywords: New Caledonia; Eclogite; Veins; Subduction; Fluid flow 1...the blueschistāeclogiteāfacies belt of northern New Caledonia. In this work, we outline the petrology...of the high-P belt of New Caledonia The north-eastern portion of New Caledonia consists of an extensive |  | | Journal (article/letter/editorial) | | high-pressure/low-temperature schists, northern New Caledonia P. M. BLACKā, P. M A U R I Z O T 2 * ,...Auckland, New Zealand āBureau de Recherches Geologiques et Minier&, BP 56, Noumea, New Caledonia āDepartment...carpholite is widespread in the Diahot region of New Caledonia in highly aluminous schists and as veins in...schists of the Diahot basin, New Caledonia. The Diahot region is the northern part of a mid-Tertiary high-P...more than 170 km along the north-east coast of New Caledonia (Fig. 1). The metamorphic belt is separated |  | | Journal (article/letter/editorial) | | insights from high-pressure mafic rocks from New Caledonia Carl Spandler a,*, JoĢrg Hermann b, Richard...blueschist and garnet amphibolite rocks from northern New Caledonia has been determined in order to geochemically...with equivalent igneous rocks from western New Caledonia demonstrates that the main chemical variations...All rights reserved. Keywords: Subduction; New Caledonia; Oceanic crust; Trace elements; Metamorphism;...eclogite-facies mafic rocks from northeastern New Caledonia. These rocks are part of an extensive high-P |  | | Journal (article/letter/editorial) | | glaucophaneā lawsonite eclogites (Type-L) and glaucophaneāepidote eclogites (Type-E) record similar peak PāT conditions...appropriate for lawsonite stability should result in epidote-bearing assemblages through dehydration reactions...controlled by lawsonite + omphacite = glaucophane + epidote + H2O. Lawsonite and omphacite breakdown will be...lawsonite eclogites are variably recrystallized to epidote-bearing assemblages, with lawsonite commonly present...E-type which record maximum temperature in the epidote-stability ļ¬eld. Based on mineral equilibria modelling |  | | Journal (article/letter/editorial) | | high-pressure, low-temperature metamorphic rocks from New Caledonia. Samples examined include maļ¬c and pelitic rocktypes... Th), phengite (LILE) and zircon (Zr, Hf). At epidote blueschist to eclogite facies conditions, trace-element...trace-element equilibrium may be attained and epidote (REE, Sr, Th, U, Pb), garnet (HREE), rutile (Nb, Ta)... but are also responsible for the generation of new crust in associated magmatic arcs (Taylor and McLennan...geological map of the high-pressure belt of northern New Caledonia. Also shown are the location of samples |  | | Journal (article/letter/editorial) | | metabasite during exhumation, Diahot terrane, NE New Caledonia J.A. Fitzherberta,T, G.L. Clarkea, R. Powellb...High-P metabasites of the Diahot terrane, NE New Caledonia occur as spatially restricted (cm to km-scale)...almandineāclinozoisiteāalbiteāchlorite (Zone 2) and almandineāepidoteāomphaciteāalbitebearing (Zone 3) lithologies. Mineral...facies metasedimentary lithologies exposed in NE New Caledonia. D 2005 Elsevier B.V. All rights reserved. Keywords:...correct interpretation. High-P lithologies of NE New Caledonia are divided into two major terranes (after Cluzel |  | | Journal (article/letter/editorial) | | high-pressure/lowtemperature vein system in eclogite from New Caledonia: insights into intraslab fluid flow processes...rocks of the PoueĢbo Eclogite Melange (northern New Caledonia) records the prograde blueschist-to-eclogite...breakdown of hydrous phases (amphibole, chlorite, epidote) during prograde metamorphism. The lower solid...predominantly buffered by newly formed minerals (e.g. epidote). Petrological evidence implies that the studied...geochronology Mass-balance calculations New Caledonia Communicated by Othmar MuĢntener. Electronic |  | | Journal (article/letter/editorial) | | eclogite regional deformation/metamorphism in New Caledonia, as indicated by progressively developed porphyroblast...Department of Geology, University of Auckland, Auckland, New Zealand Abstract. The mid-Tertiary blueschists,... eclogites and eclogitic gneisses of northern New Caledonia are the products of four phases of regional...minerals that crystallized for the first time (epidote) or had rim additions (almandine, phengite) during...microstructures; New Caledonia; omphacite INTRODUCTION Regional geology The high-pressure schists of New Caledonia |  | | Journal (article/letter/editorial) | | ćć»ćÆć·ć§ć³ļ¼äŗå ± P-T pseudosection of a glaucophane-epidote eclogite from Omi serpentinite mĆ©lange, SW Japan:...University, Kyoto 606-8502, Japan Glaucophane-epidote eclogite occurs in the eclogitic unit of the Omi...mineral assemblage of garnetļ¼omphaciteļ¼glaucophaneļ¼epidoteļ¼quartzļ¼ rutile Ā± phengite. A P-T pseudosection...unit and the non-eclogitic unit. The glaucophane-epidote eclogite may have experienced higher pressure relative...structure of present-day subduction zones, glaucophane-epidote eclogite may record subduction metamorphism of |  | | Journal (article/letter/editorial) | | Associated Albite-Epidote-Garnet Paragneisses between Yambe and Cape Colnett, New Caledonia by E. D. GHENT...coastal belt, 175 km by 35 km, in northeastern New Caledonia. Metamorphic grade ranges from lawsonite-albite...lawsonite-albite schists through glaucophane-epidote schists to omphacite-garnet-quartz gneisses. In the eclogitic...with metasedimentary gneisses containing albite-epidote-garnet Ā± glaucophane and barroisite. Omphacite...175 km long and 35 km wide, in northeastern New Caledonia. The metamorphic grade increases from southwest |  | Chen, Y., Ye, K., Wu, T. F., Guo, S. (2013) Exhumation of oceanic eclogites: thermodynamic constraints on pressure, temperature, bulk composition and density. Journal of Metamorphic Geology, 31 (5) 549-570 doi:10.1111/jmg.12033 | Journal (article/letter/editorial) | | lawsonite, and the hydrous minerals of chlorite, epidote and amphibole break down completely into dry dense...of 5ā8 Ā°C km 1 (Table 1; Fig. 1); and (iii) HP epidote eclogites are the most common type of Ā© 2013 John...29ā0.38 12 Samana, Dominica Republic Pam Peninsula, New Caledonia 1.6/360 g + o + law + gl + pa + phe...law*: lawsonite pseudomorph; gl: glaucophane; ep: epidote; chl: chlorite; ctd: chloritoid; phe: phengite;...peak mineral assemblage of garnet + omphacite + epidote + amphibole (glaucophane, barroisite, actinolite |  | | Journal (article/letter/editorial) | | one-kilometre-wide contact metamorphic aureole with the growth of new minerals, including andalusite, cordierite, alkali...lawsonite blueschist; EPS, epidote blueschist; E, eclogite; AEA, albite-epidote amphibolite; GS, greenschist...metabasites contain sodic amphibole + garnet + epidote Ā± omphacite paragenesis (e.g. Alps: Chopin, 1981b;...GoffeĢ et al., 1988; El-Shazly & Liou, 1991; New Caledonia: Ghent et al., 1987; Alaska: Brown & Forbes...Seidel, 1991), c. 460 C, 12 kbar in the Seward peninsula, Alaska (Forbes et al., 1984; Patrick & Evans |  | Spandler, Carl, Hermann, Jƶrg, Faure, Kevin, Mavrogenes, John A., Arculus, Richard J. (2008) The importance of talc and chlorite āhybridā rocks for volatile recycling through subduction zones; evidence from the high-pressure subduction mĆ©lange of New Caledonia. Contributions to Mineralogy and Petrology, 155 (2) 181-198 doi:10.1007/s00410-007-0236-2 | Journal (article/letter/editorial) | | from the high-pressure subduction meĢlange of New Caledonia Carl Spandler Ć JoĢrg Hermann Ć Kevin Faure...devolatilization. The eclogite-facies meĢlange belt of northern New Caledonia represents previously subducted oceanic...Centre, GNS Science, 30 Gracefield Road, Lower Hutt, New Zealand J. A. Mavrogenes R. J. Arculus Department...as amphibole, lawsonite, phengite, chlorite and epidote (Peacock 1993). However, with the exception of...The blueschist to eclogite facies belt of northern New Caledonia is a classic example of an exhumed slab |  | | Journal (article/letter/editorial) | | assemblages involving garnet, omphacite, glaucophane, epidote, phengite, rutile/sphene, quartz and hornblendic...for lawsonite decomposition, which results in epidote growth, glaucophane increase and omphacite decrease...Corsica (Caron & Pequignot, 1986) and Pam Peninsula in New Caledonia (Clarke et al., 1997). In many cases...Complex in Northern Urals (G omez-Pugnaire et al., 1997), Pam Peninsula in New Caledonia (Carson et...Turkey (Davis & Whitney, 2006) and Alpine Corsica in France (Vitale Brovarone et al., 2011), or occurs as interlayers |  | Tsujimori, T., Matsumoto, K., Wakabayashi, J., Liou, J. G. (2006) Franciscan eclogite revisited: Reevaluation of the PāT evolution of tectonic blocks from Tiburon Peninsula, California, U.S.A. Mineralogy and Petrology, 88 (1) 243-267 doi:10.1007/s00710-006-0157-1 | Journal (article/letter/editorial) | | PāT evolution of tectonic blocks from Tiburon Peninsula, California, U.S.A. T. Tsujimori1 , K. Matsumoto2...assemblage contains prograde-zoned garnet Ć¾ omphacite Ć¾ epidote hornblende (katophoritic and barroisitic CaāNa...glaucophane Ć¾ epidote albite phengite (3.3 Si p.f.u.). Albite is not stable in the eclogite stage. New calculations...recrystallization by a decreasing geotherm. Although an epidote-garnet amphibolitic assemblage is ubiquitous in...blocks, PāT pseudosection analyses imply that the epidote-garnet amphibolitic assemblage is stable during |
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Pam Peninsula, Northern Province, New Caledonia, France