Results 221 to 230 of about 26,858 (250)
Some of the next articles are maybe not open access.
2021
Obsidian is silicic volcanic glass that has undergone minimal crystallization, and has been documented in volcanic products spanning rhyolitic to phonolitic compositions. Although most abundant within lava flows, obsidian is also found in volcanic bombs and shallow intrusion margins.
Tuffen, Hugh+4 more
openaire +1 more source
Obsidian is silicic volcanic glass that has undergone minimal crystallization, and has been documented in volcanic products spanning rhyolitic to phonolitic compositions. Although most abundant within lava flows, obsidian is also found in volcanic bombs and shallow intrusion margins.
Tuffen, Hugh+4 more
openaire +1 more source
The Annual of the British School at Athens, 1965
Obsidian to the Greeks was no more than a semi-precious stone, black and shiny, suitable for mirrors or exotic ornaments. But to their predecessors in the Aegean through five millenia it was an important raw material for the manufacture of tools and weapons.
J. E. Dixon, Colin Renfrew, J. R. Cann
openaire +2 more sources
Obsidian to the Greeks was no more than a semi-precious stone, black and shiny, suitable for mirrors or exotic ornaments. But to their predecessors in the Aegean through five millenia it was an important raw material for the manufacture of tools and weapons.
J. E. Dixon, Colin Renfrew, J. R. Cann
openaire +2 more sources
Fission track dating of obsidians
Nuclear Tracks, 1981Abstract Fission-track dating is applied to 16 obsidian artifacts from an archaeological excavation at Cayonu Tepesi in southeastern Anatolia. Since obsidian samples are rich in bubbles and inclusions, only the six most compact samples were found to be usable for fission-track measurements.
Yegingil Z., Göksu Y.
openaire +3 more sources
Source obsidian rare earth patterns and obsidian artefact provenience
Revue d'Archéométrie, 1981The rare earth distributions in obsidian source material examined. For seven sources from Turkey examined by instrumental neutron activation analysis (INAA) the rare earth patterns provide a unique signature for the assignment of provenience for archaeological finds.
Yellin, Joseph, Perlman, Isadore
openaire +2 more sources
Phenocrysts in obsidian glasses
Journal of Radioanalytical and Nuclear Chemistry, 2003The aim of the current paper is to map minerals mainly of Carpathian obsidian glasses by nuclear microprobe based on the particle induced X-ray emission (PIXE) providing analytical data on them for the first time. Some samples from Armenia, Greece are also involved to make a comparison with the Carpathian specimens.
Z. Elekes+6 more
openaire +2 more sources
A New Obsidian Hydration Rate for Certain Obsidians in the American Southwest
American Antiquity, 1975A new hydration rate is presented for the Government Mountain-Sitgreaves Peak obsidian source in Arizona. It is based on an analysis of hydration measurements from a series of independently dated obsidian artifacts from that source. Since obsidian obtained from Government Mountain-Sitgreaves Peak was widely traded in the prehistoric Southwest, the new ...
Victoria C. Bennett+3 more
openaire +2 more sources
Obsidian and the Origins of Trade
Scientific American, 1968Objects made of this vulcanic glass are found in many neolithic sites around the Mediterranean. Spectroscopic analysis indicates that the row material often came from hundreds of miles away.
Colin Renfrew, J. R. Cann, J. E. Dixon
openaire +2 more sources
Journal of Structural Geology, 2008
Copyright © 2009 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.
openaire +3 more sources
Copyright © 2009 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.
openaire +3 more sources
Obsidian-tempered pottery in the Southern Caucasus: a new approach to obsidian as a ceramic-temper
Journal of Archaeological Science, 2014This research deals with the obsidian-tempered ceramics of the Chalcolithic period in the Southern Caucasus in order to assess their viability for provenance studies. Samples of obsidian-tempered ceramics from the site of Aratashen (Armenia) were analysed by means of Laser Ablation High Resolution Inductively Coupled Plasma Mass Spectrometry. A similar
Giulio Palumbi+3 more
openaire +3 more sources
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