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Resultats globals: 7 registres trobats en 0.02 segons.
Articles, 7 registres trobats
Articles 7 registres trobats  
1.
11 p, 1.3 MB Effects of reaction conditions on the formation of todorokite at atmospheric pressure / Cui, Hao-Jie (Huazhong Agricultural University. College of Resources and Environment) ; Feng, Xionghan (Huazhong Agricultural University. College of Resources and Environment) ; He, Ji-Zheng (Chinese Academy of Sciences. Research Center for Eco-Environmental Sciences) ; Tan, Wenfeng (Huazhong Agricultural University. College of Resources and Environment) ; Liu, Fan (Huazhong Agricultural University. College of Resources and Environment)
Todorokite is a common Mn oxide (with a tunnel structure) in the Earth surface environment, and can be obtained by hydrothermal treatment or refluxing process from precursor buserite with a layered structure. [...]
2006 - 10.1346/CCMN.2006.0540507
Clays and Clay Minerals, Vol. 54, Núm. 5 (2006) , p. 605-615  
Registre complet -
2.
13 p, 786.1 KB Carbonate-Induced structural perturbation of Al hydroxides / Zhang, G. Y. (Agricultural University of Hebei. Department of Resources and Environmental Science) ; Hu, Y. F. (Canadian Light Source) ; Xu, R. K. (Chinese Academy of Sciences. Institute of Soil Science) ; Dynes, J. J. (McMaster University. Department of Chemistry) ; Blyth, R. I. R. (Canadian Light Source) ; Kozak, L. M. (University of Saskatchewan. Department of Soil Science) ; Huang, P. M. (University of Saskatchewan. Department of Soil Science)
The chemistry of Al transformation has been well documented, though little is known about the mechanisms of structural perturbation of Al precipitates by carbonates at a molecular level. The purpose of the present study was to investigate the structural perturbation of Al precipitates formed under the influence of carbonates. [...]
2009 - 10.1346/CCMN.2009.05706012
Clays and Clay Minerals, Vol. 57, Núm. 6 (2009) , p. 795-807  
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3.
12 p, 825.9 KB Raw material sources for the Roman Bracarense ceramics (NW Iberian Peninsula) / Prudêncio, M. Isabel (Instituto Tecnológico e Nuclear) ; Sequeira Braga, M. Amália (Universida de do Minho. Centro de Investigacao Geologica Ordenamento e Valorizacao de Recursos (CIG-R)) ; Oliveira, Felisbela (Câmara Municipal. Gabinete de Arqueologia) ; Dias, Maria Isabel (Instituto Tecnológico e Nuclear) ; Delgado, Manuela (Universidade do Minho. Unidade de Arqueologia) ; Martins, Manuela (Universidade do Minho. Unidade de Arqueologia)
The Bracarense ceramics are characterized by a fine, pale yellow paste covered with a brownish yellow slip. The name is derived from Bracara Augusta, the Roman town located in the north of Portugal, where this type of ceramic paste was first found and identified. [...]
2006 - 10.1346/CCMN.2006.0540510
Clays and Clay Minerals, Vol. 54, Núm. 5 (2006) , p. 638-649  
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4.
10 p, 1.8 MB Mineralogical composition of shallow soils on basic and ultrabasic rocks of East Fennoscandia and of the Ural Mountains, Russia / Lessovaia, S. N. (St. PetersburgState University) ; Polekhovsky, Yu S. (St. PetersburgState University)
The influence of epigenetic (pre-pedogenetic) alteration of basic and ultrabasic rocks leading to the formation of phyllosilicate mineral associations is not well known. The purpose of this study was to gain further understanding of the processes involved by investigating the mineral associations of shallow soils underlain by amphibolites and metamorphosed gabbro-diabases (East Fennoscandia) and by serpentinous dunites (olivinite) and metagabbro amphibolites (the Ural Mountains). [...]
2009 - 10.1346/CCMN.2009.0570408
Clays and Clay Minerals, Vol. 57, Núm. 4 (2009) , p. 476-485  
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5.
16 p, 1.1 MB Bioavailability of Fe(III) in loess sediments : An important source of electron acceptors / Bishop, Michael E. (Miami University. Department of Geology) ; Jaisi, Deb P. (Yale University. Department of Geology and Geophysics) ; Dong, Hailiang (China University of Geosciences. Key Laboratory of Biogeology and Environmental Geology of Ministry of Education.) ; Kukkadapu, Ravi K. (Pacific Northwest National Laboratory) ; Ji, Junfeng (Nanjing University. Department of Earth Sciences)
Fe-reducing micro-organisms can change the oxidation state of structural Fe in clay minerals. The interactions with complex clays and clay minerals in natural materials remain poorly understood, however. [...]
2010 - 10.1346/CCMN.2010.0580409
Clays and Clay Minerals, Vol. 58, Núm. 4 (2010) , p. 542-557  
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6.
20 p, 2.6 MB Terrestrial perspective on authigenic clay mineral production in ancient martian lakes / Bristow, Thomas F. (California Institute of Technology. Jet Propulsion Laboratory) ; Milliken, Ralph E. (University of Notre Dame. Department of Civil Engineering and Geological Sciences)
The discovery of phyllosilicates in terrains of Noachian age (>3. 5 Ga) on Mars implies a period in the planet's history that was characterized by wetter, warmer conditions that may have been more hospitable for life than the cold and dry conditions prevalent today. [...]
2011 - 10.1346/CCMN.2011.0590401
Clays and Clay Minerals, Vol. 59, Núm. 4 (2011) , p. 339-358  
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7.
12 p, 4.4 MB Les ressources minérales et végétales de la Cerdagne orientale : bois, mines, fours à chaux, charbonnières et sites de transformation des minerais. L'apport de l'archéologie / Campmajo, Pierre (Université de Toulouse 2. Groupe de Recherches Archéologiques et Historiques de Cerdagne) ; Rendu, Christine (Université de Toulouse 2. Groupe de Recherches Archéologiques et Historiques de Cerdagne) ; Crabol, Denis (Université de Toulouse 2. Groupe de Recherches Archéologiques et Historiques de Cerdagne) ; Bousquet, Delphine (Université de Toulouse 2. Groupe de Recherches Archéologiques et Historiques de Cerdagne) ; Luault, Noémie (Université de Toulouse 2. Groupe de Recherches Archéologiques et Historiques de Cerdagne)
Cet article offre un aperçu de l'exploitation des ressources minérales et végétales de la Cerdagne dans les temps anciens. L'analyse archéologique se concentre sur l'étude de ressources telles que le bois, les mines, les fours de chaux, les charbonnières et les points de transformation des minerais.
Aquest article ofereix una panoràmica al voltant de l'explotació dels recursos minerals i vegetals de la Cerdanya en època antiga. L'anàlisi arqueològic se centra en l'estudi de recursos com la fusta, les mines, els forns de cals, les carboneres i els punts de transformació de mineral.
This paper tries to offer an overview around the exploitation of mineral and vegetal resources from Cerdanya in ancient times. The archaeological analysis is focusing in the study of resources like wood, mines, lime kilns, charcoal and mineral transformation areas.
2017 - 10.5565/rev/tda.60
Treballs d'arqueologia, Núm. 21 (2017) , p. 65-76 (Articles)  
Registre complet - Creative Commons

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