 | | Journal (article/letter/editorial) | | south of Zermatt (c) modi®ed from the 1 : 25 000 Randa and Zermatt Sheets of the Geologischer Atlas der...rocks, the Combin Zone rocks have undergone only epidote-blueschist facies metamorphism (e.g. Ring, 1995)...contain coarse-grained (up to 10 cm diameter) epidote, grandite garnet, vesuvianite and/or cordierite...chlorite, amphibole, Fe-rich epidote, calcite, quartz, and calcite with larger epidote (ep) and albite (ab) grains...of variable composition (notably amphibole and epidote); hence it is dif®cult to assess the equilibrium |  | | Report (chapter) | | rock slope instabilities: examples from western Norway A. Saintot, I. H. C. Henderson and M.-H. Derron...western Norway A. SAINTOT1*, I. H. C. HENDERSON1 & M.-H. DERRON1,2 1 Geological Survey of Norway, Leif...Leif Eirikssons Vei 39, N-7491 Trondheim, Norway 2 Lausanne University, IGAR, Quartier UNIL-Sorge, CH-1015...Abstract: The high density of slope failures in western Norway is due to the steep relief and to the concentration...(Jones 1993; Badger 2002; Coe & Harp 2007). In Norway, the bedrock geology reveals an extremely complex |  | | Journal (article/letter/editorial) | | western Alps. Localities: LC ¼ Lago di Cignana; R ¼ Randa; Sa ¼ Saas; Sv ¼ Servette; Ta ¼ Täschalp; Vt ¼...Zermatt–Saas Zone, the Combin Zone underwent only epidote-blueschist facies metamorphism (425–475 C at c...the Täschalp region modified from the 1 : 25 000 Randa Sheet of the Geologischer Atlas der Schweiz plus...pargasitic-edenitic and later actinolitic amphibole, epidote, chlorite, quartz and locally calcite, muscovite...granitic gneisses from the Grand St Bernard Nappe at Randa (c. 10 km north of locality mb: Fig. 2) have d18O |  | | Journal (article/letter/editorial) | | “rich” Epidote-hornblende Hornblende-epidote-garnet Epidote-hornblende-apatite-ZTR Epidote-hornblende-ZTR...Epidote-hornblende-ZTR Hornblende-epidote-garnet Epidote-hornblende ~5 ~10 ~1 ~5 ~15 ~10 40 105 36 57 100 52 L. Stutenbecker...basement rocks from the Western Gneiss Region, SW Norway. Norsk Geologisk Tidsskrift 96, 7–17. Kuhlemann... 1987. Nature originelles des gneiss œillés de Randa (Nappe de SiviezMischabel, Valais). Mémoires de |  | | Report (chapter) | | - p a r a g o n i t e eclogites and the later epidote-amphibolite assemblages seen in the Z e r m a t... Geologisches Atlas der Schweiz 1:25000, Blatt Randa (43) mit Erlaiiterungen, Schweizerische Geologische |  | | Journal (article/letter/editorial) | | Matrix composed of actinolite/hornblende and epidote, with titanite. Specimen 85016. (d) Amphibolite...formulae calculated assuming all iron is Fe3+ in epidote and all cations less (Ca + Na + K) total 13 in...remaining minr rals are all from an albite-hornblende-epidote-chlorite-spene rock. ND = not detected. Si Ti...3417 3416 Amphibole 3404 3401 3506 Albite Epidote Albite Table 2. Representative mineral analyses... Geologisches Atlas der Schweiz 1:25000, Blatt Randa (43) mit Erlautungen. Schweizerische Geologische |  | | Journal (article/letter/editorial) | | • Tonal,tic and trondhjemltlC rocks ßPOWELL '•<randa SiO• I Here Umt o!o FLAVRIAN PLUTON ::,• ::;o...exceeds1 percent,and, in fact, is commonlyabsent. epidote. Zircon, tourmaline,sphene,apatite, calcite, Chalcopyriteis |  | | Journal (article/letter/editorial) | | percent.Outside the alterationzonethe rocksconsistof epidote-actinolite-albite-quartz-calcite (Table 1), a typical...(106/Te) Cord letitc Anthof)hyl hte (• R•øtffe --J Epidote ? • Actinol,te - .... Z SAMPLES •, xx xxxxxxx... ¸ 1S¸ T¸PIC RELATIONSHIPS, AM ULE T MINE, N¸RANDA 107 of the Abitibigreenmetamorphism wassuperimposed |  | Thélin, Philippe, Sartori, Mario, Lengeler, Ruth, Schaerer, Jean-Pierre (1990) Eclogites of Paleozoic or early Alpine age in the basement of the Penninic Siviez-Mischabel nappe, Wallis, Switzerland. Lithos, 25 (1) 71-88 doi:10.1016/0024-4937(90)90007-n | Journal (article/letter/editorial) | | Biotite (brown) Biotite (green) Chlorite Phengite Epidote Zo"isite Carbonates Sv(Act-Qtz) SM(Hbl.act-Alb)...chlorite; Cpx(Na) = sodic clinopyroxene; Epi = epidote; Garl = eclogitic garnet; Gar2 = relict garnet...(Agr-Qtz; grain size: lO-30.u) with fibrous sprays of epidote (Fig. 3d,e); this association may form the bulk... 1987. Nature originelle des gneiss oeilles de Randa. Bull. Geol. Lausanne, 290: 75 pp. Thelin, Ph., |  | | Journal (article/letter/editorial) | | quartz + diopside + hornblende + oligoclase + epidote quartz + diopside + grunerite + almandine + magnetite...unconformity. An early granitised sequence of epidote--amphibolite schists, occasionally reaching the...pyrophyllite, andalusite and epidote. Kyanite is rare (Zones 2b--3b). Epidote, chlorite and prehnite are...fillings are now represented by aggregates of epidote. I n Z o n e 4 - - M e d i u m G r a d e the parageneses...o t e + hornblende albite + c h l o r i t e + epidote albite + c h l o r i t e + calcite p r e h n |  | | Journal (article/letter/editorial) | | field work, and generously made available memo randa prepared by him as Consulting Geologist for the...amounts of epidote and carbonate. The accessory minerals are sphene, apatite, magnetite, and epidote. Euhedral...Euhedral crystals of sphene are the most common. The epidote and scattered patches of vermicular chlorite are...replaced by aggregates of secondary chlorite, kaolin, epidote, and minor amounts of carbonate and quartz. Chloritization |  | | Report (chapter) | | developed at low greenschist facies in mylonitic epidote actinolite metabasalts of the Ayas units. They...to lineations in thrust mylonites cutting the epidote actinolite mylonitic fabric. It would appear therefore... Geologisches Atlas der Schweiz 1:25000, Blatt Randa (43) mit Erliiutungen. Schweizerische Geologische |  | | Journal (article/letter/editorial) | | channel at pressures between 15 and 20 kbar, in the epidote blueschist facies. Exhumation of the underlying...blueschist/eclogite belts, lawsonite was in fact retrogressed to epidote-bearing rhombic shaped aggregates during decompression...lawsonite are generally weak and blurred by a later epidote blueschist or greenschist facies overprint. Most...pressure fringes. In some samples, glaucophane and epidote are stable with eclogitic assemblages as suggested... and is likely coeval with the locally strong epidote-blueschist facies foliation wrapping around eclogitic |  | | Journal (article/letter/editorial) | | to 50 lm) and other accessory minerals (such as epidote) occur. LDG_2006_08 Quartz sandstone, with higher...Mezger K., Skala R., Seitz H.-M., Mizera J., Randa Z., and Adolph L. 2011. Lithium in tektites and |  | | Journal (article/letter/editorial) | | retrogressed to greenschists containing chlorite–epidote–amphibole–albite (referred in the map as “greenschist”)...between metagabbro and serpentinite reaction rims of epidote–albite–amphibole–titanite are abundant, comparable...foliation developed during the late greenschist to epidote–amphibolite facies re-equilibration associated...pervasive S2 foliation inside the serpentinites, f) epidote–albite–amphibole–titanite veins parallel to the...amphibole, chlorite, biotite, albite, oligoclase, epidote and titanite. Textures related to the exhumation |  | von Engelhardt, Wolf, Berthold, Christoph, Wenzel, Thomas, Dehner, Thomas (2005) Chemistry, small-scale inhomogeneity, and formation of moldavites as condensates from sands vaporized by the Ries impact. Geochimica et Cosmochimica Acta, 69 (23) 5611-5626 doi:10.1016/j.gca.2005.07.004 | Journal (article/letter/editorial) | | Calculated without garnet Depth (m) Garnet/ epidote Epidote Zoisite Staurolite Cyanite Rutile Tourmaline...Cosmochim. Acta 33, 1121–1134. Bouška V., Benada J., Randa Z., and Kunciv J. (1973) Geochemical evidence for |  | Schulz, Toni, Sackl, Florian, Fragner, Elisabeth, Luguet, Ambre, van Acken, David, Abate, Begosew, Badjukov, Dimitri D., Koeberl, Christian (2020) The Zhamanshin impact structure, Kazakhstan: A comparative geochemical study of target rocks and impact glasses. Geochimica et Cosmochimica Acta, 268. 209-229 doi:10.1016/j.gca.2019.08.045 | Journal (article/letter/editorial) | | Cambrian. Fragments of quartz-chlorite, chlorite-epidote, and actinolitealbiteepidote schists, gabbros,...19–27. Bouska, V., Povondra, P., Florenskij, P. and Randa Z. (1981) Irghizites and zhamanshinites: Zhamanshin...mineralogičeskovo obščectva, 116, 52-59. Mizera, J.,Randa, Z. and Tomando, I. (2012) Geochemical characterization |  | | Report (edition) | | Actinolite Hornblende Associated Minerals Quartz Mica Epidote Feldspar Chlorite Magnetite Enclosing Rocks l\tf...14 M ineral Beryl Carnotite Chrom ite Clays Epidote Feldspar Crystals Associated Minerals T ourmaline...Kyanite Hornblende Staurolite Chlorite T ourmaline ·Epidote Diopside Calcite Diopside Garnet Mica Phosphate...Chalcopyrite Malachite Azurite Lin1onite Zeolites Epidote Native Silver Feldspar Calcite Tourmaline Beryl...usually wire form Cuprite: rarely in crystals Epidote: generally massive, common; pink variety, piemontite |  | Kreissl, Stefan, Gerdes, Axel, Walter, Benjamin F., Neumann, Udo, Wenzel, Thomas, Markl, Gregor (2018) Reconstruction of a >200 Ma multi-stage “five element” Bi-Co-Ni-Fe-As-S system in the Penninic Alps, Switzerland. Ore Geology Reviews, 95. 746-788 doi:10.1016/j.oregeorev.2018.02.008 | Journal (article/letter/editorial) | | the Mont-Rogneux meta-granite (500±4 Ma) and the Randa meta-granite and correlated metarhyolites (267-282...gently crosscuts the foliation of the hornblende-epidote-albite-schists with arsenopyrite and pyrite (hence...equilibrium with albite and quartz, minor sericite and epidote can occur as well (Figure 8j). As the last phase...Switzerland; Knill, 1995; Hofmann and Knill, 1996), the Randa Granite and corresponding rhyolites (intruded...deposits such as Cobalt Ontario/Canada, Kongsberg/Norway and Jáchymov/Czech Republic. In addition, more |  | | Journal (article/letter/editorial) | | mostly metamict with quartz inclusions and with epidote-zoisite overgrowths on the rim. Chromite is euhedral...43 – 55. Bouška, V., Jelinek, E., Pačesova, M., Randa, Z. & Ulrych, J. (1984): Rare earth elements and |  | | Journal (volume) | | differenti ation: Anorthosite-serpentine series »H a pa randa -seriese - migmatitic granite I n ord er to obtai...icular intercalations with abundant plagioclase and epidote. M. Hii1'1ne : Str atigraphical and Structural... light green hornblend e (y /\ c = 10°_ 20°), epidote a nd chlorite. As a ccessory minerals there a re...magnetite and somet imes also epidote or carbonate. Amphibole and epidote are products of recrystallization...These schists contain p lagioclase, amphibole and epidote, further carbona te and magnetite as well as interst |  | | Journal (article/letter/editorial) | | typicalgradesof 50 g/t Au the assemblage sericite-chlorite-epidote-zoisite _+al- (Price,1934). The zonesare smallpodsor..., 1988, Rare earth elementmobility at constant randa,Quebec:Unpub. M.Sc. thesis,London,Univ. Western |  | Engelhardt, W.V, Luft, E, Arndt, J, Schock, H, Weiskirchner, W (1987) Origin of moldavites. Geochimica et Cosmochimica Acta, 51 (6) 1425-1443 doi:10.1016/0016-7037(87)90326-7 | Journal (article/letter/editorial) | | Transparent heavy minerals in sands are garnet and epidote with less staurolite, apatite, tourmaline, rutile...microtektites in Middle Tertiary BOUSKAV.. BENADAJ., RANDA Z. and KUNCI~ J. (1973) sediments. ROST ( 1969) |  | | Journal (issue) | | av fjellet /En chanted by the Mountain Pa Mjesst randa /Ar the shore ofLake Mjf}sa ghw Uoffisiell Vinte...Chartered Engineers. P.O.Box 2312, N-0201 Oslo, NORWAY . Telefax: +4722830746 SISTE Kvelden fer dette...or hers geological/mineralogical experiences in Norway or abroad. Vart ferste met e i ar skal vi ha pa...organization representing amateur collectors in Norway . Our annual membe rship -fee is 120 Norweg ian...initiative to advertise f or amat eur-geology in Norway. In the Olympi c Games Shop at the first floor |  | | Journal (issue) | | day of the week; other pages for ad dresses, memo randa etc The ideal book for XMAS GIFTS for all oges,...Appalachian Unakite. Colorful blend of pistachio green epidote and red feldspar, $1.25 per Ib Pocket set of hardness |
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