Exploració per tema "Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Mineralogia"
Ara es mostren els items 1-20 de 125
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Affinity of dual energy X-ray transmission sensors on minerals bearing heavy rare earth elements
(2020-03-01)
Article
Accés obertThis work demonstrates the effective use of automatic sensor-based sorting technology as a viable separation method for rare earth element (REE) rich ores composed primarily of xenotime minerals with gagarinite-(Y) and ... -
Algunos datos para el conocimiento de las salinas continentales ibéricas de Aragón
(2009)
Text en actes de congrés
Accés obert -
An introduction to Irish-type Zn-Pb deposits in early Cretaceous carbonate rocks of Iran
(2023)
Text en actes de congrés
Accés obertEarly Cretaceous carbonates are the most common host rocks for Irish-type deposits in Iran. They are largely concentrated in the Malayer-Esfahan metallogenic belt (MEMB) in southwestern Iran, and Yazd-Anarak metallogenic ... -
Anàlisi de diferents enfocaments per representar la composició de pols mineral dins dels models atmosfèrics i climàtics
(Universitat Politècnica de Catalunya, 2021-07-19)
Projecte Final de Màster Oficial
Accés obertEls aerosols de pols del sòl interactuen amb la radiació, intervenen en els processos de formació de núvols, afecten la química atmosfèrica i modulen els cicles biogeoquímics. La influència de la pols en aquests processos ... -
Aplicación de dos técnicas de separación de Minerales del Grupo del Platino (EPD + HS y Superpanning) en muestras de cromitas y de placeres
(Universitat Politècnica de Catalunya, 2010-07-02)
Tesina
Accés obertEl superpanning (SP) y la hidroseparación (HS) son dos técnicas de separación de minerales del grupo del platino (MGP) que permiten concentrar estos minerales sin contaminar la muestra. La HS se suele usar en combinación ... -
Basin evolution and stratigraphic correlation of sedimentary-exhalative Zn–Pb deposits of the Early Cambrian Zarigan–Chahmir Basin, Central Iran
(2015)
Article
Accés restringit per política de l'editorialThe Zarigan-Chahmir basin is placed to in the southern part of a crustal domain known as the Central Iranian microcontinent, at the northwestern margin of Gondwana. It hosts abundant mineral deposits, particularly of the ... -
Bioevents and redox conditions around the Cenomanian-Turonian anoxic event in Central Mexico
(Elsevier, 2016-05-01)
Article
Accés obertThe Xilitla section of central Mexico (western margin of the proto-North Atlantic) is characterized by pelagic sediments enriched in marine organic matter. Using biostratigraphic and radiometric data, it was dated at the ... -
Biogenic vs geochemical precipitation of minerals in the submarine hydrothermal vents of Punta Mita, Mexico
(2002)
Text en actes de congrés
Accés obertThe submarine hydrothermal vents located in the vicinity of Punta Mita contain abundant deposition of calcite, pyrite. Also present are barite, carbonate hydroxyl-apatite, cinnabar and T1-sulfide.Textures indicate direct ... -
Boron vs. phosphorus in granitic pegmatites: the Cap de Creus case (Catalonia, Spain)
(2000-01)
Article
Accés obertThe Cap de Creus pegmatite field exhibits a well-defined regional zonation of four types of granitic pegmatite: barren K-feldspar-rich pegmatites (type I), beryl-columbite-subtype pegmatites (type II), beryl-columbite-ph ... -
Breakage function for HPGR: mineral and mechanical characterization of tantalum and tungsten ores
(2018-04-20)
Article
Accés obertThe modelling of high pressure grinding rolls is described by the population balance model, a mass balance which includes several functions that are related to the mineral characteristics, material kinetics and operative ... -
Caracterización del yacimiento de oro de Misky, sur del Perú
(2011)
Text en actes de congrés
Accés obert
Realitzat a/amb: Red Social / Sociedad Nacional de Minería en Pequeña Escala -
Carbonate-hosted Zn-Pb-Cu-Ba (-Ag) mineralization in the Mehdiabad deposit, Iran: new insights, new discoveries
(2023)
Comunicació de congrés
Accés obertThe Mehdiabad deposit in the Yazd-Anarak metallogenic belt (YAMB), central Iran, is the largest car-bonate-hosted Zn-Pb-Ba-Cu (-Ag) deposit in the world, with a reserve of 630 Mt sulphide and non-sulphide ore. It was formed ... -
Carbonatitic lavas in Catanda (Kwanza Sul, Angola): mineralogical and geochemical constraints on the parental melt
(2015-09-01)
Article
Accés obert -
Comments on “Dehydration of hot oceanic slab at depth 30–50 km: key to formation of Irankuh-Emarat Pb-Zn MVT belt, Central Iran” by Mohammad Hassan Karimpour and Martiya Sadeghi
(2019-10)
Article
Accés obertThe Malayer-Esfahan Metallogenic belt (MEMB), southwestern Iran, contains numerous different types of the sediment-hosted Zn-Pb (±Ba±Ag), volcanic-sediment hosted Zn-Pb ± Ba, sideritic Fe-Mn-Pb (±Ba±Cu), and barite ... -
Composición de la turmalina de las pegmatitas graníticas de Giraúl, Angola
(S.E.M., 2008)
Text en actes de congrés
Accés obert -
Constitutive modelling of bonded expansive geomaterials
(PRESSES DE L'ECOLE NATIONALE DES PONTS ET CHAUSSES, 2008)
Text en actes de congrés
Accés obertThis paper presents a discussion on existing approaches to derive constitutive models for bonded geomaterials conceived as composite materials. The methodology involves the partitioning of strains, the adoption of ... -
Datos para el conocimiento de las salinas continentales pirenaicas de Aragón (comarcas de la Litera, la Ribagorza, el Sobrarbe y el Somontano)
(2009)
Text en actes de congrés
Accés obert -
Datos para el conocimiento de las salinas de la depresión geológica del Ebro, Aragón
(2009)
Text en actes de congrés
Accés obert -
Descripció de cates i sondeigs per al Permís d’investigació “EL PILAR-2” (Baix Empordà)
(2015-02-24)
Report de recerca
Accés restringit per acord de confidencialitat -
Distribution of indium in the Ánimas - Chocaya - Siete Suyos District
(2019)
Comunicació de congrés
Accés obertThe Ánimas - Chocaya - Siete Suyos district in SW Bolivia hosts a Bolivian-type polymetallic vein mineralization composed mostly of cassiterite, sphalerite, pyrite, galena, stannite, lead sulfosalts, tin sulfosalts and ...