Browsing by Author "Alfonso Abella, María Pura"
Now showing items 1-20 of 212
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A comparative study of quartz and potassium feldspar flotation process using different chemical reagents
(2024-02-04)
Article
Open AccessAn improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth flotation experiments on a Qtz–Kfs mixture showed that quartz could ... -
A compilation of field surveys on gaseous elemental mercury (GEM) from contrasting environmental settings in Europe, South America, South Africa and China: separating fads from facts
(2014)
Article
Restricted access - publisher's policyMercury is transported globally in the atmosphere mostly in gaseous elemental form (GEM, Hggas 0), but still few worldwide studies taking into account different and contrasted environmental settings are available in a ... -
A survey to analyze the learning of geology in the Compulsory Secondary Education system of Catalonia (Spain)
(2021-11-29)
Article
Open Access -
An improved high-pressure roll crusher model for tungsten and tantalum ores
(2018-10-25)
Article
Open AccessAn improved approach is presented to model the product particle size distribution resulting from grinding in high-pressure roll crusher with the aim to be used in standard high-pressure grinding rolls (HPGR). This approach ... -
An introduction to Irish-type Zn-Pb deposits in early Cretaceous carbonate rocks of Iran
(2023)
Conference report
Open AccessEarly 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 ... -
Analysis of the European tourist mines and caves to design a monitoring system
(2018)
Article
Open AccessA database of tourist mines and caves has been created to investigate the requirements of an integrated monitoring system with the aim of ensuring the safety of visitors and preserving the environment of the activities. ... -
Analysis of the process of compaction movements of deposits of crushed salt tailings
(2021-11)
Article
Open Access -
Aprovechamiento de residuos mineros para la fabricación de nuevos materiales
(2023)
Conference report
Open AccessEl consumo actual de recursos minerales es muy elevado, conllevando una elevada generación de residuos durante su explotación y procesado industrial. La utilización de estos residuos como materia prima representa una ... -
Basin evolution and stratigraphic correlation of sedimentary-exhalative Zn–Pb deposits of the Early Cambrian Zarigan–Chahmir Basin, Central Iran
(2015)
Article
Restricted access - publisher's policyThe 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
Open AccessThe 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)
Conference report
Open AccessThe 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
Open AccessThe 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
Open AccessThe 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 de la Pedra de Floresta y su interés patrimonial
(Instituto Geológico y Minero de España (IGME), 2010)
Book
Restricted access - publisher's policy -
Caracterización del yacimiento de oro de Misky, sur del Perú
(2011)
Conference report
Open Access
Covenantee: 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)
Conference lecture
Open AccessThe 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
Open Access -
Colaboración interuniversitaria como soporte a la pequeña minería en Angola
(Universitat Autònoma de Barcelona (UAB), 2008)
Conference lecture
Open Access
Covenantee: Universidade Agostinho Neto / Universitat de BarcelonaAngola, con una gran cantidad de recursos minerales, no cuenta con capacidad, tanto material como humana, para desarrollar las tareas necesarias pa ra el aprovechamiento óptimo de sus recursos, a excepción del petróleo y ... -
Combining ammonium mapping and short-wave infrared (SWIR) reflectance spectroscopy to constrain a model of hydrothermal alteration for the Acoculco geothermal zone, Eastern Mexico
(2015)
Article
Restricted access - publisher's policyThe Acoculco geothermal system is hosted by a caldera complex located at the eastern portion of the Trans-Mexican Volcanic Belt. Surface manifestations are scarce and consist of low temperature, bubbling, acid–sulfate ... -
Comerç just de l’or a Sud amèrica
(2018)
Lecture
Open Access
