 | | Journal (article/letter/editorial) | | mantle-derived peridotite lens at Bardane on Fjørtoft, west Norway DENNIS A. CARSWELL1 and HERMAN L....mantle-derived peridotite body at Bardane on Fjørtoft, western Norway. This pod is interpreted to have...the internally exsolved M2 mineral assemblage at Bardane. This determined age is most likely a mixed age...formation of the M2 mineral assemblage within the Bardane peridotite body. Key-words: SEM, fluid, diamond...of mantle-derived peridotite that outcrops at Bardane on the small island of Fjørtoft (Fig. 1) within |  | | Journal (article/letter/editorial) | | pressure domain of the Western Gneiss Region, SW Norway HERMAN VAN ROERMUND* Department of Earth Sciences...pressure terrane of the Western Gneiss Region, SW Norway. Their mantle and crustal evolution is fundamentally...majoritic garnet, Scandinavian Caledonides, WGR, Norway. 1. Introduction (2000), followed by Zhang et...northernmost UHP domain of the Western Gneiss Complex, SW Norway, form the ‘‘typelocality’’ of mantle-wedge garnet...pressure domain of the Western Gneiss Region, SW Norway (Van Roermund, 2009). 2. Field occurrence Occurrences |  | Malaspina, N., Scambelluri, M., Poli, S., Van Roermund, H.L.M., Langenhorst, F. (2010) The oxidation state of mantle wedge majoritic garnet websterites metasomatised by C-bearing subduction fluids. Earth and Planetary Science Letters, 298 (3) 417-426 doi:10.1016/j.epsl.2010.08.022 | Journal (article/letter/editorial) | | garnet-bearing websterites from Bardane (Western Gneiss Region, Norway) are unique examples of metasomatised...Fe3+/ΣFe up to 0.15. The fO2 values obtained for the Bardane mantle wedge garnet websterites are up to −2 log...majorite-hosted diamond-bearing polyphase inclusions from Bardane and the speciation of its COH component point to...metasomatised garnet websterites from Bardane (Western Gneiss Region, Norway), a known example of hydrate– carbonate-bearing...northernmost UHP terrain of the Western Gneiss Region of Norway and outcrop within high-grade continental gneisses |  | | Journal (article/letter/editorial) | | ultramafic rocks (Ulten zone, Italy; Sulu, China; Bardane, Norway), which record metasomatic processes driven...decreasing P and T. The f O2 values obtained for the Bardane garnet websterites, which record a prograde path...decreasing f O2 with increasing pressure. The Bardane websterites contain C-polymorphs in polyphase inclusions...Alps), Sulu (China) and Western Gneiss Region (Norway) metamorphic belts. Although all these ultramafic...(China) and garnet websterites from Bardane (Western Gneiss Region, Norway), which display C-O-H metasomatism |  | Cutts, Jamie A., Smit, Matthijs A., Spengler, Dirk, Kooijman, Ellen, van Roermund, Herman L.M. (2019) Two billion years of mantle evolution in sync with global tectonic cycles. Earth and Planetary Science Letters, 528. 115820 doi:10.1016/j.epsl.2019.115820 | Journal (article/letter/editorial) | | pyrope-rich garnet grains that, in part, preserve enstatite and diopside exsolution lamellae, indicative of...15-08-UG in outcrop. C) Garnet-websterite lens in the Bardane peridotite from which sample 15-06-BA was collected;...obtained from kelyphite assemblages containing enstatite, spinel, and Cr-poor garnet after Cr-rich pyrope...Photomicrographs of the Bardane websterite (15-06-BA); D) cm-sized megacrystic M 2a enstatite with coronae composed...exsolved enstatite needles in pyrope; F) Cr-pyrope, -diopside, and -spinel lamellae in enstatite cores; |  | Malaspina, Nadia, Alvaro, Matteo, Campione, Marcello, Wilhelm, Heribert, Nestola, Fabrizio (2015) Dynamics of mineral crystallization from precipitated slab-derived fluid phase: first in situ synchrotron X-ray measurements. Contributions to Mineralogy and Petrology, 169 (3) doi:10.1007/s00410-015-1121-z | Journal (article/letter/editorial) | | diamond-bearing multiphase inclusions in garnets from Bardane, Ugelvik and Svartberget in the Western Gneiss...in mantlederived peridotite lens at Bardane on Fjortøft, west Norway. Eur J Mineral 17:31–42. doi:10.1...956153 Newton RC, Manning CE (2002) Solubility of enstatite + forsterite in H2O at deep crust/upper mantle...mantle peridotite: the reaction clinochlore + enstatite = forsterite + pyrope + H2O. Contrib Mineral Petrol...high and ultrahigh-pressure rocks from Bardane (Western Norway) and Ulten (Italian Alps). Lithos 120:186–201 |  | Carswell, D. A, Krabbendam, M., Cuthbert, S. J., Eide, E. A, Brueckner, H. K., Medaris Jr, L. G (2003) Guidebook to the Field Excursions in the Nordfjord-Stadlandet-Almklovdalen Area. Norges Geologiske Undersøkelse. Rapport 2003.056. Norges Geologiske Undersøkelse (NGU) | Report (issue) | | Geological Survey of Norway N-7441 Trondheim, Norway Tel.: 47 73 90 40 00 Telefax 47 73 92 16 20 REPORT...by E. A. Eide County: NGU Commune: Møre og Romsdal; Sogn og Fjordane Map-sheet name (M=1:250.000)...excursions conducted during the Alice Wain Memorial West Norway Eclogite Field Symposium held in Selje from June...peridotites that outcrop in the coastal region of west Norway between Bergen and Trondheim. These occurrences...MEMORIAL WEST NORWAY ECLOGITE FIELD SYMPOSIUM JUNE 21st – 28th, 2003 in SELJE, WEST NORWAY GUIDEBOOK TO |  | | Journal (article/letter/editorial) | | peridotite: Rampone and Morten 2001; Bardane peridotite, Norway: van Roermund et al. 2002; Sulu garnet...forsterite (Kushiro 1969; Trønnes 2002), phlogopite ? enstatite and phlogopite ? diopside (Kushiro 1970; Modreski...Boettcher 1973; Luth 1997), phlogopite ? diopside ? enstatite (Sudo and Tatsumi 1990), to 123 724 more complex...grossular and 65 wt.% of a synthetic mixture of enstatite solid solution and diopside solid solution. Individual...1,100°C, fluid coexisting with a phlogopite ? enstatite ? forsterite composition would have approximately |  | | Journal (article/letter/editorial) | | from Su-Lu in China (Zhang et al., 2007), Bardane in Norway (van Roermund et al., 2002; Scambelluri et...are phlogopite in ultra-HP terranes (e.g. Su-Lu, Bardane), and phlogopite þ amphibole in HP terranes (e...whereas dolomite alone occurs at HP conditions. At Bardane, the dolomite exhibits a corona of magnesite and...to this study forsterite þ diopside þ CO2 ¼ enstatite þ dolomite ð1Þ with the high-pressure assemblage...to the reaction forsterite þ CO2 ¼ magnesite þ enstatite ð2Þ described by Newton & Sharp (1975) and reviewed |  | | Journal (article/letter/editorial) | | forsterite (X Mg = 0.90–0.92), orthopyroxene is enstatite (XMg = 0.91–0.92), and clinopyroxene is diopside...amphibole (pargasite), and minor orthopyroxene (enstatite), magnesite and garnet II may also be present...phlogopites in marbles from Rogaland, southwest Norway. Am Mineral 74:439–447 Carswell DA, van Roermund...mantle-derived peridotite lens at Bardane on Fiørtoft, west Norway. Eur J Mineral 17:31–42. https://doi...high and ultrahigh-pressure rocks from Bardane (Western Norway) and Ulten (Italian Alps). Lithos 120:186–201 |  | | Journal (article/letter/editorial) | | 19 59.8 sillimanite 11 14.4 0.585 29,30 63.1 enstatite 12 32.2 0.9615 15,9 69.6 lawsonite 13 34.7 0.98...caused a doubling in the thickness of the crust in Norway. In the same rock, they reported interstitial graphite...Compression studies of forsterite (Mg2SiO4) and enstatite (MgSiO3). In M.H. Manghnani and S.I. Akimoto,...garnet websterite pod from Bardane on the island of Fjortoft, western Norway: Evidence for diamond formation |  | | Journal (article/letter/editorial) | | Minerals of Norway - the (almost) complete inventory Gunnar Raade Preamble A monographic survey of the...the minerals of Norway (Norges Mineraler) was published by Neumann (1985), covering all minerals recorded...and synonyms. A large number of minerals new to Norway have been recorded since the book appeared. The...attempt to list all accepted mineral species from Norway, including those from Neumann (1985) and later...& Nickel 2001). Names of minerals discovered in Norway after the edition of Neumann's monograph are in |  | | Journal (article/letter/editorial) | | Italian Alps at Dora Maira and shortly thereafter in Norway. Downloaded by [University of Wyoming Libraries]...(A) and omphacite from the Western Gneiss Region, Norway (B). Both images also show retrograde quartz and...discovery in eclogite of the Western Gneiss Region of Norway (Smith, 1984). The discovery at Dora Maira (Fig...implication of high pressures came reasonably quickly. In Norway, however, others were unable to confirm Smith’s...ubiquitous in those rocks. Most importantly, in both Norway (Wain, 1997) and China (Ye et al., 2000), coesite |  | Lapen, Thomas J., Medaris, L. Gordon, Beard, Brian L., Johnson, Clark M. (2009) The Sandvik peridotite, Gurskøy, Norway: Three billion years of mantle evolution in the Baltica lithosphere. Lithos, 109 (3) 145-154 doi:10.1016/j.lithos.2008.08.007 | Journal (article/letter/editorial) | | / l i t h o s The Sandvik peridotite, Gurskøy, Norway: Three billion years of mantle evolution in the...body, Island of Gurskøy, Western Gneiss Region, Norway, is a mantle fragment that contains polymetamorphic...fragments in Proterozoic crust, Western Gneiss Region, Norway. Geology 32, 609–612.; Lapen, T.J., Medaris, L...isotope analyses of the Sandvik ultramafic body, Norway. Contributions to Mineralogy and Petrology 150...isotope analyses of the Sandvik ultramafic body, Norway. Contributions to Mineralogy and Petrology 150 |  | | Journal (article/letter/editorial) | | in peridotites from the Western Gneiss Region of Norway Patricia Kang1, William M. Lamb1,*, and Martyn...mantle peridotites from the Western Gneiss Region of Norway. An amphibole dehydration reaction yielded values...mantle peridotites from the Western Gneiss region of Norway. These estimates require an independent determination...petrologic background The Western Gneiss Region (WGR) of Norway is part of the Norwegian Caledonides, which covers...Western Gneiss Region of Norway. A box in the left map (Regional map of Norway) indicates the location |  | Lo Pò, Deborah, Braga, Roberto, Tropper, Peter, Konzett, Jürgen, Mair, Volkmar, Bargossi, Giuseppe Maria (2020) Polymineralic inclusions as tracers of multistage metasomatism in a paleo mantle wedge. Lithos, 364. 105517pp. doi:10.1016/j.lithos.2020.105517 | Journal (article/letter/editorial) | | chemical composition (Tab. 3). Orthopyroxene is enstatite Mg#=Mg/(Mg+Fe2+)=0.92-0.95. with Si=1.91-1...mantle-derived peridotite lens at Bardane on Fjørtoft, west Norway. European Journal of Mineralogy 17...The ultrahigh-pressure Western Gneiss Region of Norway. Tectonophysics rn 480, 149-171. Jo u Holland...and ultrahigh-pressure Pr rocks from Bardane (Western Norway) and Ulten (Italian Alps). Lithos 120,...garnet websterite pod from Bardane on the island of Fjørtoft, western Norway: Evidence for diamond formation |  | WANG, Q., XIA, Q.-K., O’REILLY, S. Y., GRIFFIN, W. L., BEYER, E. E., BRUECKNER, H. K. (2013) Pressure- and stress-induced fabric transition in olivine from peridotites in the Western Gneiss Region (Norway): implications for mantle seismic anisotropy. Journal of Metamorphic Geology, 31 (1) 93-111 doi:10.1111/jmg.12011 | Journal (article/letter/editorial) | | from peridotites in the Western Gneiss Region (Norway): implications for mantle seismic anisotropy Q...420–400 Ma Scandian orogeny. The CPOs of olivine, enstatite and diopside were measured using the electron...km wide, stretching along the western coast of Norway from Bergen in the south to Trondheim in the north...ultrahigh-pressure (UHP) eclogites in the Western Gneiss Region, Norway (modified after Beyer et al., 2004 and Root et al...primary lineation defined by alignment of tremolite, enstatite, elongated olivine and trails of olivine and chromite |  | ZHANG, J. F., XU, H. J., LIU, Q., GREEN, H. W., DOBRZHINETSKAYA, L. F. (2011) Pyroxene exsolution topotaxy in majoritic garnet from 250 to 300 km depth. Journal of Metamorphic Geology, 29 (7) 741-751 doi:10.1111/j.1525-1314.2011.00939.x | Journal (article/letter/editorial) | | Western Gneiss Region (WGR) garnet peridotite, Otrøy, Norway. For both clinopyroxene (Cpx) and orthopyroxene...Fjørtoft of the Western Gneiss Region (WGR) of Norway (e.g. Van Roermund & Drury, 1998; Van Roermund...majoritic garnet from mantle xenolith and the WGR of Norway (e.g. Sautter et al., 1991; Van Roermund et al...<112>27.652 Å <110>15.965 Å <111>19.553 Å Enstatite [100] 9.556 Å [010] 8.695 Å [001] 5.147 Å...Diego. Gasparik, T., 1989. Transformation of enstatite-diopside-jadeite pyroxene to garnet. Contributions |  | | Journal (article/letter/editorial) | | olivegreen olivine crystals from Aheim dunite (Norway) were used as a model analog of the mantle. The...similar molar volumes (31.31 and 28.06 cm3 for enstatite and magnesite, respectively [25]). The zone in...Mst, 1 Mineral symbols used in reactions: En, enstatite; Fa, fayalite; For, forsterite; Fs, ferrosilite;...aqueous fluid producing talc [39] or olivine and enstatite (reac tions 4 and 5). 2013 266 PERCHUK, YAPASKURT...Garnet Websterite Pod from Bardane on the Island of Fjortoft, Western Norway: Evidence for Diamond For |  | | Journal (article/letter/editorial) | | sp3-carbon in the coesite-bearing Straumen Eclogite Pod, Norway D. C. SMITH1,2 AND G. GODARD3,4 1 Lab. Minéralogie...Eclogite Pod in the Western Gneiss Region (WGR), S.W. Norway. Graphitic carbon is always present with a degree...types in the WGR. Key words: diamond; eclogite; Norway; Raman; UHPM. INTRODUCTION The diamond story...story in the Western Gneiss Region (WGR), Norway, began by the confirmation by Raman spectroscopy of microdiamond...in polyphase microinclusions in peridotite at Bardane (van Roermund et al., 2002) and at Svartberget |  | | Journal (article/letter/editorial) | | Department, P.O. Box 101 Forus, NO-4064 Stavanger, Norway a r t i c l e i n f o Article history: Received...diopside, diam = diamond, do = dolomite, en = enstatite, fa = fayalite, fo = forsterite, fs = ferrosilite...mantle-derived peridotite lens at Bardane on Fjortoft, west Norway. Eur. J. Mineral. 17, 31–42. Cartigny...garnet websterite pod from Bardane on the island of Fjortoft, western Norway: evidence for diamond formation |  | | Journal (article/letter/editorial) | | metamorphism in the orthopyroxenite. The reaction enstatite + quartz + H2O = anthophyllite allows deciphering...complex, Western Norway (Carswell et al., 1983), 6, Kolmannskog massif, Western Norway (Carswell et al...because the Mg-number values of anthophyllite and enstatite in the rock are nearly the same (0.73 and 0.74...high-temperature granulite assemblage—sapphirine, enstatite, and corundum. Mantle ultramafites with mineral...types in the high grade gneiss complex of Western Norway. Bull. Mineral. 106, 727–750. Cawthorn, R.G., Collerson |  | Hughes, Lewis, Cuthbert, Simon, Quas-Cohen, Alex, Ruzié-Hamilton, Lorraine, Pawley, Alison, Droop, Giles, Lyon, Ian, Tartèse, Romain, Burgess, Ray (2021) Halogens in Eclogite Facies Minerals from the Western Gneiss Region, Norway. Minerals, 11 (7) 760 doi:10.3390/min11070760 | Journal (article/letter/editorial) | | Facies Minerals from the Western Gneiss Region, Norway Lewis Hughes 1, * , Simon Cuthbert 2 , Alex Quas-Cohen...Facies Minerals from the Western Gneiss Region, Norway. Minerals 2021, 11, 760. https:// doi.org/10.3390/min11070760...fluid inclusions from the Western Gneiss Region, Norway. The fluid composition is used to assess the halogen...orogeny. The Western Gneiss Region (WGR) in southwest Norway is the largest of these basement windows, occupying...ingress [37]. Figure 1. Map of the WGR, western Norway, redrawn after [33], showing the petrographic context |  | Malaspina, N., Langenhorst, F., Tumiati, S., Campione, M., Frezzotti, M.L., Poli, S. (2017) The redox budget of crust-derived fluid phases at the slab-mantle interface. Geochimica et Cosmochimica Acta, 209. 70-84 doi:10.1016/j.gca.2017.04.004 | Journal (article/letter/editorial) | | 7. Half of the inclusion volume is filled by enstatite, identified by its main Raman vibrations at 1013...ens-lyon.fr/LST/Raman). As shown in Figure 8, enstatite is over/inter-grown with micro- to nano-crystals...Holland and Powell, 1998) and orthopyroxene (enstatite– ferrosilite; Holland and Powell, 1996). The fO2...forsterite (Fo 90), orthopyroxene with 93 mol% of enstatite (En93), and garnet with 72 mol% of pyrope (Py72)...+ 2 ferrosilite = grossular + 2 fayalite + 3 enstatite + 0.5 O2 (5) Several studies demonstrated that |  | Dobrzhinetskaya, L. F., Green, H. W., Bozhilov, K. N., Mitchell, T. E., Dickerson, R. M. (2003) Crystallization environment of Kazakhstan microdiamond: evidence from nanometric inclusions and mineral associations. Journal of Metamorphic Geology, 21 (5) 425-437 doi:10.1046/j.1525-1314.2003.00452.x | Journal (article/letter/editorial) | | China (Xu et al., 1992), Western Gneiss Region, Norway (Dobrzhinetskaya et al., 1995; Van Roermund et...stoichiometry corresponding to ferrosilite with a minor enstatite component (Fe1.60Mg0.14Ca0.09Al0.08)1.91(Si1.93Al0...(quartz, diaspore, corundum, calcite, forsterite, enstatite and the assemblages albite-paragonite-quartz)...metamorphic rocks of the Western Gneiss Region in Norway. Geology, 23, 597– 600. Dobrzhinetskaya, L. F....garnet websterite pod from Bardane on the island of Fjortoft, western Norway: evidence for diamond formation |
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