Resultats globals: 3 registres trobats en 0.02 segons.
Articles, 3 registres trobats
Articles 3 registres trobats  
1.
12 p, 1.3 MB Low-temperature hydrothermal alteration of silicic glass at the PACMANUS hydrothermal vent field, manus basin : An XRD, SEM and AEM-TEM study / Giorgetti, Giovanna (Università di Siena. Dipartimento di Scienze della Terra) ; Monecke, Thomas (University of Ottawa. Department of Earth Sciences) ; Kleeberg, Reinhard (TU Bergakademie Freiberg. Institut für Mineralogie) ; Hannington, Mark D. (University of Ottawa. Department of Earth Sciences.)
Dacitic lava recovered from the immediate subsurface of the submarine PACMANUS hydrothermal vent field exhibits variable degrees of hydrothermal alteration resulting from the interaction of the glassy volcanic rocks with mineralizing hydrothermal fluids at relatively low temperatures. [...]
2006 - 10.1346/CCMN.2006.0540209
Clays and Clay Minerals, Vol. 54, Núm. 2 (2006) , p. 240-251  
2.
12 p, 979.7 KB Preferred orientation of mineral grains in sample mounts for quantitative XRD measurements : How random are powder samples? / Kleeberg, Reinhard (Institute of Mineralogy. TU Bergakademie Freiberg) ; Monecke, Thomas (University of Ottawa. Department of Earth Sciences) ; Hillier, Stephen (Macaulay Institute)
The degree of preferred orientation of mineral grains in powder X-ray diffraction (XRD) samples prepared by standard techniques has been evaluated by means of a correction model implemented in the Rietveld program, BGMN. [...]
2008 - 10.1346/CCMN.2008.0560402
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 404-415  
3.
17 p, 2.6 MB Low-temperature hydrothermal alteration of trachybasalt at Conical Seamount, Papua New Guinea : Formation of smectite and metastable precursor phases / Giorgetti, Giovanna (Università di Siena. Dipartimento di Scienze della Terra) ; Monecke, Thomas (Department of Geology and Geological Engineering. Colorado School of Mines) ; Kleeberg, Reinhard (Institut für Mineralogie. TU Bergakademie Freiberg) ; Hannington, Mark D. (Department of Earth Sciences. University of Ottawa)
The conversion of volcanic glass to secondary alteration products is one of the most common mineralogical transformations during low-temperature hydrothermal alteration of submarine basalts. To better understand the mechanism and kinetics of this transformation, porphyritic and formerly glassy trachybasalt, recovered from Conical Seamount, Papua New Guinea, was studied in detail. [...]
2009 - 10.1346/CCMN.2009.0570606
Clays and Clay Minerals, Vol. 57, Núm. 6 (2009) , p. 725-741  

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