Results 171 to 180 of about 26,069 (224)
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Nature, 1978
The hydration of obsidian is studied by measuring hydrogen concentration profiles of natural samples hydrated at 90°C, using the 15N resonance nuclear reaction method. The results of this study are well reproduced by the interdiffusion model of Doremus. The importance of the non-amorphous phase of obsidian is discussed.
T. Laursen, W. A. Lanford
openaire +1 more source
The hydration of obsidian is studied by measuring hydrogen concentration profiles of natural samples hydrated at 90°C, using the 15N resonance nuclear reaction method. The results of this study are well reproduced by the interdiffusion model of Doremus. The importance of the non-amorphous phase of obsidian is discussed.
T. Laursen, W. A. Lanford
openaire +1 more source
2005
In Europe obsidian is a very rare material, in comparison with other sectors of Earth, such as, for example, the adjacent Near East. In Western Europe obsidian workable by prehistoric men was recognised only in four volcanic complexes, located in the IIalian islands of Sardinia, Palmarola, Lipari and Pantelleria.
BIGAZZI G, ODDONE M, RADI, GIOVANNA
openaire +3 more sources
In Europe obsidian is a very rare material, in comparison with other sectors of Earth, such as, for example, the adjacent Near East. In Western Europe obsidian workable by prehistoric men was recognised only in four volcanic complexes, located in the IIalian islands of Sardinia, Palmarola, Lipari and Pantelleria.
BIGAZZI G, ODDONE M, RADI, GIOVANNA
openaire +3 more sources
Radiation shielding properties of Cerium oxide and Erbium oxide doped obsidian glass
Radiation Physics and Chemistry, 2019S P Yalcin
exaly
New investigations of the Göllüdağ obsidian lava flows system: a multi-disciplinary approach
Journal of Archaeological Science, 2011Didier Binder +2 more
exaly
GEOCHEMICAL PROVENANCE OF OBSIDIAN ARTEFACTS FROM THE MSA SITE OF PORC EPIC, ETHIOPIA*
Archaeometry, 2006Agazi Negash
exaly

