Results 191 to 200 of about 6,065,993 (240)
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Advanced statistical analysis of LIBS spectra for the sourcing of obsidian samples
Journal of Analytical Atomic Spectrometry, 2019This paper proposes an advanced statistical analysis method for results obtained by Laser-Induced Breakdown Spectroscopy on obsidian source samples from the Western Mediterranean area.
D. Syvilay +4 more
semanticscholar +1 more source
A New Obsidian Source in the Highlands of Guatemala
Ancient Mesoamerica, 1992AbstractA new obsidian source has recently been discovered in the highlands of Guatemala, near the city of Sansare, El Progreso. Ten samples have been subjected to neutron activation analysis, and the results are presented. While ceramic affinities tie the Sansare area with Formative and Classic period Highland Maya sites, linguistic evidence suggests ...
Michael D. Glascock +1 more
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Obsidian Sources in Guatemala: A Regional Approach
American Antiquity, 1978Geologic sources of obsidian are frequently treated in the archaeological literature as single, discrete flows, each being recognized as a different source as long as it can be geographically isolated. However, some recent studies show a tendency toward the correction of this misconception, and toward defining operationally the obsidian source concept ...
William A. Jester +1 more
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, 2013
This paper thematically characterizes a large body of recent obsidian sourcing discourse as a means of highlighting the current place of obsidian provenance studies in larger archaeological discourse.
K. Freund
semanticscholar +1 more source
This paper thematically characterizes a large body of recent obsidian sourcing discourse as a means of highlighting the current place of obsidian provenance studies in larger archaeological discourse.
K. Freund
semanticscholar +1 more source
Obsidian source classification and defining “local” in early Holocene Southeast Alaska
Geoarchaeology, 2022Despite the ubiquity of obsidian in early Holocene archaeological assemblages across Southeast Alaska, artifact sourcing using bi‐plots and Principal Component Analysis has been hampered by the highly correlated geochemistry of two major sources: local ...
N. Schmuck +6 more
semanticscholar +1 more source
Identifying the Geographical Source of Artefact Obsidian
Nature, 1966DURING an avocational search for means of identifying the geographical source of artefact obsidian, what appears to be a functional tool has been found. It was postulated that, because the concentration ratio in rocks is determined by the origin and age of the rock, it would also ...
George A. Parks, Thomas T. Tieh
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The prehistoric sources of Palliser Bay obsidian
Journal of Archaeological Science, 1978Abstract A sample of 210 pieces of archaeologically derived obsidian from settlement sites in Palliser Bay, New Zealand, was subjected to X-ray fluorescent analysis, in order to define the petrographic sources exploited by these prehistoric groups. It was found that the material had been derived from sources at Mayor Island, Huruiki, Rotorua, Cooks ...
Atholl Anderson, B.F. Leach
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, 2012
Despite predictions in the 1980s that electron microprobe analysis (EMPA) would become a popular technique for obsidian sourcing, few studies have used it with this goal, and most of them are now outdated and unrepresentative of modern EMPA. For example,
E. Frahm
semanticscholar +1 more source
Despite predictions in the 1980s that electron microprobe analysis (EMPA) would become a popular technique for obsidian sourcing, few studies have used it with this goal, and most of them are now outdated and unrepresentative of modern EMPA. For example,
E. Frahm
semanticscholar +1 more source
Analele Banatului XXIV 2016, 2016
Compositional analysis conducted using the latest equipment, provided new data and clarifications regarding the exploitation of sources of obsidian and the distribution of material from different sources used by Neolithic and Eneolithic communities in ...
Alex W. Barker +5 more
semanticscholar +1 more source
Compositional analysis conducted using the latest equipment, provided new data and clarifications regarding the exploitation of sources of obsidian and the distribution of material from different sources used by Neolithic and Eneolithic communities in ...
Alex W. Barker +5 more
semanticscholar +1 more source
Obsidian Sources Characterized by Neutron-Activation Analysis
Science, 1968Concentrations of elements such as manganese, scandium, lanthanum, rubidium, samarium, barium, and zirconium in obsidian samples from different flows show ranges of 1000 percent or more, whereas the variation in element content in obsidian samples from a single flow appears to be less than 40 percent.
James B. Griffin +2 more
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