 | | Journal (article/letter/editorial) | | later found in JosephineConnty, Oregon, Poschiavo (Switzerland), British Columbia and Quebec province...time. By virtue of its associationwith chromite, magnetite, and its close proximity to massive peridotite...Subsequentlyawaruitewas studiedby Quervain (3) from Poschiovo(Switzerland) where it occursin situ in serpentinizedperidotires...nickel-ironoccursin considerable quantityas in Poschiavo(Switzerland) it appearsas a silverwhite, metallicdust...following data. The mineral analyzedis from Poschiavo,Switzerland. I n kl d 2 10 10 5 10 10 101 111 200 |  | | Journal (article/letter/editorial) | | bleb, showing a typical geometric intergrowth of magnetite (dark gray) and pentlandire (light gray), and...ores." aggregateof two or threephases(Fig. 4): magnetite, The principal nickeliferousopaqueminerals in...amounts. Chromite is also widespread,but it and magnetite. Furthermore, the Dumont blebs is clearly a relict...culatedfrom databy Ewersand Hudson(1972) for magnetite;consequently, it will not be considered the Kambaldaores...semblagepyrrhotite and pentlandite,with minor = mg + pn + aw magnetite,and possiblypyrite, all within the conThe internal |  | | Journal (article/letter/editorial) | | KSrnche,t yon Awaruit in Serpentinen yon Selva bei Poschiavo beobachtet und ausfiihrlich bes(.hrh, l)en...district, British Columbia, 5 Ansehliffe 'Awaruit' aus Selva bei Posehiavo, Sehweiz, eine Probe aus vertalktem...wie tibrigeus fiir (lie seltenen Tieftemperatur-Magnetite typiseh, fleeki~ ein wenig versehieden. {}ber...Agentien auf dem Gipfel des Riffelhorns, dem Tal yon Poschiavo, den fast vegetationslosen Serpentingebieten yon...enthSlt, /ihnelt weitgehend einigen Stiicken von Poschiavo. Die KSrner sind teils vSllig xenomorph, tells |  | | Journal (article/letter/editorial) | | Implications for the origin of awaruite- and magnetite-bearingnodulesin CV3 chondrites Ar-.q,Nr E. Runrn...awaruite is richer in Ni (71 vs. 65-67 wo/o),magnetite is poorer in AlrO, (<0.04 vs. 0.45-0.74 wto/o)...taenite crystallized along with or subsequentto magnetite and did not form euhedral grains. ruite or any...teorites is as subangulargrains associatedwith magnetite, sorpentinizedperidotite. Typical grain sizes...Ningqiang CK3-an hedral, or skeletal; in Poschiavo, Switzerland, awaruite chondrite (Kallemeyn et al., |  | | Journal (article/letter/editorial) | | Petrographie, ETH, Sonneggstrasse 5, CH-8006 Zfirich, Switzerland 2 Department of Geological Sciences AJ-20, University...olivine + magnesian ilmenite (or geikielite)_+ magnetite in the outermost zone of the Bergell aureole in...synthesis field for hydroxyl-clinohumitein the region 800~ ~ C from 29 to 77 kbars. In reconnaissance...are antigorite, olivine, diopside, chlorite, magnetite, T i - C1, and pentlandite. In more SiO2-rich...Antigorite, olivine, T i - C1, diopside, chlorite, and magnetite all occur in at least two metamorphic generations |  | | Journal (article/letter/editorial) | | composition from samples collected over a wide region of the Oman mantle sequence implies both a remarkably...serpentinisation and magnetic susceptibility excludes magnetite (F%O4) as the dominant iron-rich phase. 5. Discussion...Awaruite and pentlandite in the serpentine of Selva near Poschiavo, Schweiz. Mineral. Petrogr. Mitt. 25, 305-310 |  | | Journal (article/letter/editorial) | | serpentinites from between Davos (Arosa-Platta nappe, Switzerland) and the Valmalenco (Italy). ~D and ~180 values...those of serpentines from the nearby Valmalenco region. The results help to more clearly define the nature...Austroalpine nappes, from the DavosArosa region, Switzerland, to the Valmalenco, Italy (Fig. 1). The northern...Burkhard 1987). Al-spinel is common in the Davos region whereas two spinels, an AI-Cr- and a Cr-spinel...is altered and recrystallized to a Cr-bearing magnetite, whereas the Cr content of relict centers occasionally |  | | Journal (article/letter/editorial) | | propose that josephinite might have originated in the region of the coremantle boundary, was transported via...Several visits were made to the Josephine Creek region (Fig. 1) and a number o f specimens o f j o s e...dominantly iron-nickel is always replaced by magnetite and serpentine minerals. We have not found any...come from the lower mantle or core-mantle boundary region of the earth. At least, the occurrence of elemental...the serpentinite/peridotite bedrock of the canyon region. Dick [3] indicates that the serpentinite bedrock |  | | Journal (article/letter/editorial) | | varies from a smectite-plagioclase-augite-quartz-magnetite assemblage in 410 ka terrace soils to a disordered...disordered kaolinite-goethite-hematite-quartz-magnetite assemblage in 537 ka terrace soils. Leaching results...landscape evolution in this tectonically active region by: (1) facilitating identification of two Holocene...Simplified geological map of the central Pacific coast region modified from Sak (2004a) with inset map showing...the quartz 100 peak and the kaolin 02,11 peak; magnetite ÿ the 2.96 AÊ 220 peak (MIF = 0.38; DL = 2%) and |  | | Journal (article/letter/editorial) | | lava flows. Cinder cones are found at Tecchiena, Selva dei Muli, Celleta, Villa Santo Stefano, Colle Sant’Arcangelo...Sant’Arcangelo, La Badia, Case Bruni, Colle Spinazzeta, Selva Piana, Pofi, and Arnara; tuff cones are found at...small tongues of lava are found at Il Piglione, Selva Piana, La Badia, Colle Castellone, Case Scalone...the most abundant, and they are from Tecchiena, Selva dei Muli, Celleta, Colle Sant’Arcangelo, Pofi, Il...leucitites, and occur at La Badia, Colle Spinazzeta, Selva Piana, and Case Scalone volcanic centers (Fig. 1) |  | | Journal (article/letter/editorial) | | Sweden; Wolfgang Kickmaier, MCM International, Switzerland; Rebecca Lunn, University of Strathcylde, UK;...2015); behaviour of uranium with the iron oxide magnetite (Marshall et al., 2015); carbon-14 behaviour in...copper canisters for geological disposal (Hernandez-Selva et al., 2015); dissolution of MAGNOX blend nuclear...Mineralogical Magazine, 79, 1343–1350. Hernandez-Selva, T., Engelberg, D.L., Scenini, F., Fox, D. and McClusky...(2015) Uranium fate during crystallization of magnetite from ferrihydrite in conditions relevant to disposal |  | Jansen, Nicholas H., Gemmell, J. Bruce, Chang, Zhaoshan, Cooke, David R., Jourdan, Fred, Creaser, Robert A., Hollings, Pete (2017) Geology and Genesis of the Cerro la Mina Porphyry-High Sulfidation Au (Cu-Mo) Prospect, Mexico. Economic Geology, 112 (4) 799-827 doi:10.2113/econgeo.112.4.799 | Journal (article/letter/editorial) | | further insight into a poorly understood metallogenic region of Mexico. This project was pursued by drill hole...new frontiers for discoveries in an underexplored region with a complex tectonic setting and uncommon styles...formation names are from the Sierra de Chiapas region where Selva Negra volcanic rocks are located; formation...rather El Chichón Santa Fé mining district Selva Negra region CLM Central CVA Cenozoic plutonic rocks...location of the Santa Fé mining district: Selva Negra region, El Chichón, central CVA, and Tacaná volcano |  | | Journal (article/letter/editorial) | | primary/primitive liquids from different suites. The Italian region represents one of the best localities for this...Southern Tuscany, through Latium, to the Neapolitan region (Fig. 1). Isolated occurrences of potassic and...out continuously from the Vulsinian region to the Campanian region. They have high A1203, CaO and variable...LMP (e.g. Radicofani, Torre Alfina) and HKS (e.g. Selva del Lamone). They display intermediate compositional...plagioclase, with minor olivine, and subordinate Ti-magnetite and apatite; nepheline may occur as a groundmass |  | | Journal (article/letter/editorial) | | subjects who lived in the urban and industrial region of Upper Silesia, Poland, revealed the occurrence...AND HAUG, G.H.1 D-ERDW, ETH Zurich, Zurich, Switzerland; samuel.jaccard@erdw.ethz.ch 2 Department of...isotopically homogeneous inner terrestrial planet region S. B. JACOBSEN1*, M. I. PETAEV1, S. HUANG1 1 AND...identical to Earth and ECs. In contrast, there is a region with significant isotopic heterogeneity from Mars...isotopically homogeneous inner terrestrial planet region (Oligarchic Zone). The FeO-poor silicates and Ca |  | Vallejo, Cristian, Almagor, Santiago, Romero, Christian, Herrera, Jose L., Escobar, Vanessa, Spikings, Richard A., Winkler, Wilfried, Vermeesch, Pieter (2020) Sedimentology, Provenance and Radiometric Dating of the Silante Formation: Implications for the Cenozoic Evolution of the Western Andes of Ecuador. Minerals, 10 (10) 929 doi:10.3390/min10100929 | Journal (article/letter/editorial) | | Sciences, University of Geneva, CH-1205 Geneva, Switzerland; Richard.Spikings@unige.ch Department of Earth...Earth Sciences, ETH-Zürich, CH-8092 Zürich, Switzerland; wilfried.winkler@erdw.ethz.ch Correspondence: cristian...Quito–Santo Domingo, Quito–Chiriboga and Otavalo–Selva Alegre road sections. Minerals 2020, 10, x FOR...Quito–Santo Domingo, Quito– 3 of 31 Chiriboga and Otavalo–Selva Alegre road sections. Figure Figure 2. 2. Geological...42” W Nono–Tandayapa road Silante W Otavalo–Selva Alegre road Silante 02CV99 0◦ 160 37.91” CV380 |  | | Journal (article/letter/editorial) | | Austroalpine units in the eastern Central Alps of Switzerland and Italy. One unit is an ophiolite nappe, and...extends between Davos, Oberhalbstein, and Engadin, Switzerland. The ultramafic rocks consist of serpentinized...sketch map with the two ultramafrc units in Switzerland (CH) and Italy (1). The regional position is...indicated by the small mngle in the sketch of Switzerland (CH). Ophiolites of the Arosa-PIatta nappe and...Grialetsch. Furtschellas (Grial). Val Maknco: 15: Selva; 16: Pass d’Ur (P.d’Ur); 16: Mu&la (Mus); 18: Francis |  | | Report (issue) | | Aromas Red Sands of Alien (1946) sampled at La Selva Beach has much better chemical characteristics than... There are about 100 square miles in the study region and the population in 1967 was on the order of...of 10,000. Most of the development in the region is concentrated on the relatively flat lands between the...Feldspars Andesite fragments Opaques (including magnetite) Ferromagnesians Clay Percent 3A 25 10 0 0 ...intensively folded and faulted. The main fold in this region is a syncline that trends southeastward, as do |  | | Journal (article/letter/editorial) | | in France, the Po in Italy and the Rhine in Switzerland (personal observation and oral communications)...sand and gravel industries in France, Italy and Switzerland. On the other hand, HMS recovery using low and...medium density minerals such as rutile, zircon, magnetite and ilmenite (Fig. 3). For beneficiation of gold...the gravimetric concentrator are very rich in magnetite, ilmenite and other dark minerals, as well as...approach first to a single European region, in this case, the autonomous region of Catalonia, in order to determine |  | Garcia, Victor B., Emilia Schutesky, Maria, Oliveira, Claudinei G., Whitehouse, Martin J., Huhn, Sergio R.B., Augustin, Claudia T. (2020) The Neoarchean GT-34 Ni deposit, Carajás mineral Province, Brazil: An atypical IOCG-related Ni sulfide mineralization. Ore Geology Reviews, 127. 103773pp. doi:10.1016/j.oregeorev.2020.103773 | Journal (article/letter/editorial) | | as irregular veins and chalcopyrite-pyrrhotite-magnetite are commonly observed where such alteration intersects...texture of the Sapucaia (Araújo and Maia 1991) and Selva (Siepierski and Ferreira Filho, 2016) groups. Syn-tectonic...(hornblendeactinolite-albite) and calcic-iron (magnetite-apatite) alteration halos. These are better documented...that crosscut the previous sodic, sodic-calcic magnetite-apatite alteration, and mineralization (Grainger...Local gabbro bodies have been observed around the region (Costa et al. 2016) as well as fine-grained mafic |  | Arienzo, I., Mazzeo, F.C., Moretti, R., Cavallo, A., D'Antonio, M. (2016) Open-system magma evolution and fluid transfer at Campi Flegrei caldera (Southern Italy) during the past 5 ka as revealed by geochemical and isotopic data: The example of the Nisida eruption. Chemical Geology, 427. 109-124 doi:10.1016/j.chemgeo.2016.02.007 | Journal (article/letter/editorial) | | the north-eastern sector of the NYT caldera floor (Selva et al., 2012). This sector extends over an area...likely site for a possible future vent opening (Selva et al., 2012). Averno 2 was the largest magnitude...made up of plagioclase, clinopyroxene, biotite, magnetite, and analcime crystals leads to a trachytic daughter...bytownitic plagioclase, clinopyroxene, biotite and magnetite (∑R2 = 0.2), has to be subtracted. Conversely...clinopyroxene, analcime, labradoritic plagioclase and magnetite. This result is poor, yielding ∑R2 = 1.6, and |  | | Journal (article/letter/editorial) | | brucite was formed intermediately. Together with magnetite, the fine-grained brucito filled numerous small...silicate phases several phases of ore, especially magnetite, were formed. Chemical and spcctrochemical research...den gleichen Erzmineralien des Serpentinits yon Selva bei :Posehiavo, Graubiinden/Schweizvorgenommen.*...0 8,5 9,5 47,4 44,4 49,3 Selva: Vergleichserzo im Serpentinit yon Selva bci Poschiavc Schweiz. :Ffir |  | Peretti, Adolf, Dubessy, Jean, Mullis, Josef, Frost, B. Ronald, Trommsdorff, V. (1992) Highly reducing conditions during Alpine metamorphism of the Malenco peridotite (Sondrio, northern Italy) indicated by mineral paragenesis and H2 in fluid inclusions. Contributions to Mineralogy and Petrology, 112 (2) 329-340 doi:10.1007/bf00310464 | Journal (article/letter/editorial) | | Petrographie, ETH, Sonneggstrasse 5, CH-8092 Zurich, Switzerland 2 CREGU, GS CNRS 077, BP 23, F-54501 Vandoeuvre-Les-Nancy...Universit/it, Bernoullistrasse 30, CH-4056 Basel, Switzerland 4 Department of Geology and Geophysics, University...Petrographie, ETH, Sonneggstrasse 5, CH-8092 Zurich, Switzerland Received April 12, 1991 / Accepted June 19, 1992... the mineral assemblage pentlandite-awaruite-magnetite-native copper-antigorite-brucite-olivine-diopside...Present address: Kehlhofweg 4, 6043 Adligenswil, Switzerland Correspondence to : A. Peretti has evidenced |  | Boni, M., Rollinson, G., Mondillo, N., Balassone, G., Santoro, L. (2013) Quantitative Mineralogical Characterization of Karst Bauxite Deposits in the Southern Apennines, Italy. Economic Geology, 108 (4) 813-833 doi:10.2113/econgeo.108.4.813 | Journal (article/letter/editorial) | | from two of the bauxite districts of the Campania region: the Matese Mountains and the Caserta province...carried out for two bauxite districts of the Campania region (southern Apennines): the Matese Mountains (Fig...several localities, i.e., Regia Piana and Bocca della Selva (Matese Mountains district), and Dragoni, Maiorano...141 GRBX 15 GRBX 16 Caserta district Bocca della Selva San Felice Profile 1 GRBX 17 GRBX 18 Profile...10 0.04 0.11 0.07 0.06 12.80 99.71 Bocca della Selva GRBX 9 GRBX 121 GRBX 13 GRBX 141 GRBX 15 GRBX 16 |  | Galán, Gumer, Cruz, Erzika, Fernández-Roig, Mercè, Martínez, Francisco J., Oliveras, Valentí (2016) Mineral associations and major element compositions of base metal sulphides from the subcontinental lithospheric mantle of NE Spain. Mineralogy and Petrology, 110 (1) 87-101 doi:10.1007/s00710-015-0415-1 | Journal (article/letter/editorial) | | younger ages (10–0.01 Ma) of activity: L’Empordà, La Selva and La Garrotxa (Donville 1973a, b and c). La Banya...Fluvià River BB L’Empordà CA Olot Girona La Selva Mediterranean Sea CVZ Spain 10 Km b 2.819875...in the tranformation of earlier sulphides into magnetite ± violarite associated with amphibole in peridotites...FeS field and most cluster about the fayalite-magnetite-quartz (FMQ) ±0.4 log unit and FMQ-pyrrhotite...potassium-argon des roches volcaniques de la depresion de La Selva (Nord-Est de L’Espagne). CR Acad Sci Paris 277:1–4 |  | | Journal (article/letter/editorial) | | Transformation of Sapropel from Lake Dukhovoe (East Baikal Region, Russia) A.A. Bogush, G.A. Leonova, S.K. Krivonogov.... . . . . SON68 Glass Alteration Enhanced by Magnetite N. Godon, S. Gin, D. Rebiscoul, P. Frugier . ...Availability using Multivariate Analysis in the Selva Basin (NE Spain) J. Mas-Pla, A. Menció, A. Folch...Temperature Groundwater in the Pearl River Delta Region, China J.F. Yuan, X.M. Mao, Y.X. Wang . . . . ...Low-permeability Argillaceous Rocks, Wellenberg, Switzerland H.N. Waber, M.Y. Hobbs, S.K. Frape . . . . . |
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