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Depósito Digital de Documentos de la UAB Encontrados 133 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.01 segundos. 
1.
13 p, 14.2 MB Rare Earth Elements' particles in road dust : A mineralogical perspective for source identification / Navarro Ciurana, Didac (Universitat Autònoma de Barcelona. Departament de Geologia) ; Corbella i Cordomí, Mercè (Universitat Autònoma de Barcelona. Departament de Geologia) ; Farré-de-Pablo, Júlia (Universitat de Barcelona. Departament de Mineralogia) ; Corral, Isaac (Universitat Autònoma de Barcelona. Departament de Geologia) ; Buixadera, Elisabeth (Universitat Autònoma de Barcelona. Departament de Geologia) ; Morera-Valverde, Robert (Universitat Autònoma de Barcelona. Departament de Geologia) ; Proenza, Joaquín A. (Universitat de Barcelona. Departament de Mineralogia)
Roadside dust contains many mineral grains and, among them, some of REEs (Rare Earth Elements) which have an uncertain origin. This paper characterizes and illustrates for the first time the occurrence of such REEs' particles from four locations near Barcelona (Spain), by means of mineralogical studies, with the aim of identifying their source and understanding their accumulation. [...]
2023 - 10.1016/j.atmosenv.2023.119927
Atmospheric Environment, Vol. 309 (September 2023) , art. 119927  
Registro completo - Creative Commons
2.
15 p, 1.2 MB Local matters : pottery production at Tell Halaf and Tell Tawila / Becker, Jörg (Martin-Luther-University) ; Drüppel, Kirsten (Institute for Applied Geosciences) ; Helfert, Markus (Goethe-University Frankfurt)
Los fragmentos cerámicos de los periodos Halaf y Ubaid de Tell Halaf, Tell Tawilla y de la región de Tell Chuera han sido analizados utilizando métodos geoquímicos, mineralógicos y petrográficos. [...]
Sherds of the Halaf and Ubaid periods from Tell Halaf, Tell Tawila and Chuera region were analysed through geochemical and mineralogical/petrographical methods. Pottery exchange and imports will be discussed and Samarra-like sherds.
Barcelona : Generalitat de Catalunya, Departament de Cultura; Museu d'Arqueologia de Catalunya, 2018
II Workshop on Late Neolithic Ceramics in Ancient Mesopotamia, 2018, p. 127-141  
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3.
20 p, 12.5 MB Magnetic mineralogy of Variscan granites from northern Portugal : an approach to their petrogenesis and metallogenic potential / Cruz, Claudia (Universidade do Porto. Departamento de Geociências Ambiente e Ordenamento do Território) ; Sant'Ovaia, H. (Universidade do Porto. Departamento de Geociências Ambiente e Ordenamento do Território) ; Noronha, Fernando (Instituto de Ciências da Terra-Polo Porto)
Northern Portugal is characterized by the occurrence of numerous W hydrothermal deposits spatially associated with granites. The primary goal of this work is to establish a relationship between the magnetic behavior of the granites and the redox conditions during magma genesis, as this can influence the occurrence of mineralizations, namely of W (Mo). [...]
2020 - 10.1344/GeologicaActa2020.18.5
Geologica acta, Vol. 18 (2020) , p. 1-20 (Articles)  
Registro completo - Creative Commons
4.
16 p, 897.2 KB The smectite-to-disordered kaolinite transition in a tropical soil chronosequence, Pacific Coast, Costa Rica / Fisher, G. Burch (Dartmouth College. Earth Sciences Department) ; Ryan, Peter C. (Middlebury College. Geology Department)
Soils developed on Quaternary fluvial fill terraces in the humid tropics of Costa Rica display progressive changes in mineral assemblage, chemical composition and particle size with age. Clay minerals from B horizons of active floodplains are predominantly smectite with lesser amounts of disordered kaolinite. [...]
2006 - 10.1346/CCMN.2006.0540504
Clays and Clay Minerals, Vol. 54, Núm. 5 (2006) , p. 571-586  
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5.
21 p, 3.8 MB Mineralogy, geochemistry and genesis of smectite in Pliocene volcaniclastic rocks of the Doǧanbey formation, Beyşehi̇r basin, Konya, Turkey / Kadir, Selahattín (Eskişehir Osmangazi University. Department of Geological Engineering)
Pliocene volcaniclastic lacustrine rocks of the Doǧanbey formation in the Beyşehir region (central Anatolia) are composed of organic-matter-bearing claystone, clastic units and dolomite interbeds, suggesting an anaerobic, shallow swampy, lacustrine depositional environment. [...]
2007 - 10.1346/CCMN.2007.0550408
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 402-422  
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6.
20 p, 4.8 MB Metamorphic-hosted pyrophyllite and dickite occurrences from the hydrous Al-silicate deposits of the Malatya-Pütürge region, central eastern Anatolia, Turkey / Bozkaya, Ömer (Cumhuriyet University. Department of Geological Engineering) ; Yalçin, Hüseyin (Cumhuriyet University. Department of Geological Engineering) ; Başibüyük, Zeynel (Cumhuriyet University. Department of Geological Engineering) ; Bozkaya, Gülcan (Cumhuriyet University. Department of Geological Engineering)
Hydrous Al-silicate deposits are found to the south of Pütürge in Malatya city, Turkey. The surrounding rocks consist of mylonitic granitic gneiss overlain by muscovite gneiss with kyanite-bearing metabasic schist lenses on top which are cut by silica veins containing prismatic tourmaline and specularite. [...]
2007 - 10.1346/CCMN.2007.0550409
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 423-442  
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7.
16 p, 1.5 MB Seasonal variation in the mineralogy of the suspended particulate matter of the lower Changjiang river at Nanjing, China / Mao, Changping (Nanjing University. Department of Earth Sciences.) ; Chen, Jun (Nanjing University. Department of Earth Sciences) ; Yuan, Xuyin (Hohai University. College of Environmental Science and Engineering) ; Yang, Zhongfang (China University of Geosciences. School of Earth Science and Resources) ; Balsam, William (University of Texas at Arlington) ; Ji, Junfeng (Nanjing University. Department of Earth Sciences)
The source and temporal changes of minerals transported by the world's large rivers are important. In particular, clay minerals are important in evaluating the maturity of suspended sediments, weathering intensity, and source area. [...]
2010 - 10.1346/CCMN.2010.0580508
Clays and Clay Minerals, Vol. 58, Núm. 5 (2010) , p. 691-706  
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8.
23 p, 3.4 MB Geochemistry of mixed-layer illite-smectites from an extensional basin, Antalya Unit, Southwestern Turkey / Bozkaya, Ömer (Cumhuriyet University. Department of Geological Engineering) ; Yalçin, Hüseyin (Cumhuriyet University. Department of Geological Engineering)
The Antalya Unit, one of the allochthonous units of the Tauride belt, is of critical, regional tectonic importance because of the presence of rifting remnants related to the break-up of the northern margin of Gondwana during Triassic time. [...]
2010 - 10.1346/CCMN.2010.0580505
Clays and Clay Minerals, Vol. 58, Núm. 5 (2010) , p. 644-666  
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9.
22 p, 5.9 MB Mineralogy and geochemistry of the sedimentary kaolin deposits from Sinai, Egypt : Implications for control by the source rocks / Baioumy, Hassan M. (Central Metallurgical R and D Institute) ; Gilg, H. Albert (Technische Universität München. Lehrstuhl für Ingenieurgeologie) ; Taubald, Heinrich (Universität Tübingen. Lehrstuhl für Isotopengeochemie)
Abstract-Mineralogical and geochemical variations among the Carboniferous and Cretaceous sedimentary kaolin deposits from Sinai provided an opportunity to examine the effect of the source area on compositions of the deposits. [...]
2012 - 10.1346/CCMN.2012.0600608
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 633-654  
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10.
9 p, 1.2 MB Mixed-valent Fe films ('schwimmeisen') on the surface of reduced ephemeral pools / Grathoff, Georg H. (Portland State University. Department of Geology) ; Baham, John E. (Oregon State University. Department of Crop and Soil Science) ; Easterly, Heather R. (Portland State University. Department of Geology) ; Gassman, Paul (Pacific Northwest National Laboratory (PNNL)) ; Hugo, Richard C. (Portland State University. Department of Geology)
Floating, mixed-valent Fe films have been observed worldwide in wetlands, ferrous iron-rich seeps, and in seasonally reduced soils, but are usually misidentified as oil or biofilms. There has been little characterization or explanation of their formation. [...]
2007 - 10.1346/CCMN.2007.0550610
Clays and Clay Minerals, Vol. 55, Núm. 6 (2007) , p. 635-643  
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Depósito Digital de Documentos de la UAB : Encontrados 133 registros   1 - 10siguientefinal  ir al registro:
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