scholarly journals Late Pleistocene Lithic Procurement and Geochemical Characterization of the Cerro Kaskio Obsidian Source in South-western Bolivia

Archaeometry ◽  
2018 ◽  
Vol 60 (5) ◽  
pp. 898-914 ◽  
Author(s):  
J. M. Capriles ◽  
N. Tripcevich ◽  
A. E. Nielsen ◽  
M. D. Glascock ◽  
J. Albarracin-Jordan ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Geochemical Characterization ◽  
Lithic Procurement ◽  
Obsidian Source

Multi-technique geochemical characterization of the Alca obsidian source, Peruvian Andes

Geology ◽  
2013 ◽  
Vol 41 (7) ◽  
pp. 779-782 ◽  
Author(s):  
Kurt Rademaker ◽  
Michael D. Glascock ◽  
Bruce Kaiser ◽  
David Gibson ◽  
Daniel R. Lux ◽  
...  
Keyword(s):  
Peruvian Andes ◽  
Geochemical Characterization ◽  
Obsidian Source

Geochemical characterization of the Late Pleistocene loess-palaeosol sequence in Tyszowce (Sokal Plateau-Ridge, SE Poland)

2019 ◽  
Vol 502 ◽  
pp. 108-118 ◽  
Author(s):  
Jacek Skurzyński ◽  
Zdzisław Jary ◽  
Jerzy Raczyk ◽  
Piotr Moska ◽  
Bartosz Korabiewski ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Geochemical Characterization ◽  
Se Poland

Geochemical Characterization of Late Pleistocene and Holocene Tephra Layers from the Basin of Mexico, Central Mexico

1998 ◽  
Vol 50 (1) ◽  
pp. 90-106 ◽  
Author(s):  
Beatriz Ortega-Guerrero ◽  
Anthony J. Newton
Keyword(s):  
Late Pleistocene ◽  
Archaeological Site ◽  
Central Mexico ◽  
Southeastern Part ◽  
Geochemical Characterization ◽  
Basin Of Mexico ◽  
Glass Shard ◽  
Tephra Layers ◽  
Nevado De Toluca

In order to aid palaeoenvironmental research of Late Pleistocene and Holocene deposits of central Mexico, tephra layers collected from the sediments of the Texcoco and Chalco sub-basins, in the southern part of the Basin of Mexico, are geochemically characterized and used as stratigraphic markers. The tephra layers range in composition from basaltic andesites to rhyolites and are calc-alkaline. The tephras range in age from >34,000 to ca. 260014C yr B.P. New names are used informally to designate correlated tephras. The Tlahuac tephra is present in Chalco, at a depth of 18 m; in the southeastern part of Texcoco, at a depth of around 10 m; and at the Tlapacoya archaeological site, where it had been mistakenly described as basaltic. This basalt–andesite tephra is dated to at least 34,00014C yr B.P. The Tlapacoya 1 tephra is dated to between 15,020 ± 450 and 14,430 ± 190 yr B.P. and is present in all Chalco sections. The Tlapacoya 2 tephra corresponds to the previously described “pomez gruesa con fragmentos de andesita” (ca. 14,400 yr B.P.) and is present in all Chalco and Texcoco sections. The likely source of these three tephras is the volcano Popocatepetl. Tephra II at Chalco dates to 12,520 ± 135 yr B.P. and correlates with the Upper Toluca Pumice from Nevado de Toluca volcano. These represent the first geochemical glass-shard analysis of tephras from the Basin of Mexico, and so further research is necessary before a reliable tephrochronology can be established.

Obsidian Sources in Guatemala: A Regional Approach

1978 ◽  
Vol 43 (3) ◽  
pp. 424-435 ◽  
Author(s):  
Luis Hurtado de Mendoza ◽  
William A. Jester
Keyword(s):  
Structural Features ◽  
Trade Routes ◽  
Geochemical Characterization ◽  
Regional Basis ◽  
Prehistoric Trade ◽  
Sociocultural Systems ◽  
Obsidian Source ◽  
Diverse Source

Geologic 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 on a regional basis. This work is intended to help achieve such definition for a number of obsidian sources in the central highlands of Guatemala. Geochemical characterization of samples from diverse source localities, attained by means of neutron activation analysis, is utilized for this purpose. The information thus obtained has importance to a number of fields of research in archaeology. To the now-routine studies on prehistoric trade routes, other lines of investigation can be added, namely the determination of source-specific obsidian hydration rates for dating purposes, and the reconstruction of structural features in sociocultural systems.

HIGH ENERGY SYNCHROTRON X-RAY MICROSPECTROSCOPY FOR GEOCHEMICAL CHARACTERIZATION OF TERRESTRIAL AND EXTRATERRESTRIAL SAMPLES

2016 ◽  
Author(s):  
Antonio Lanzirotti ◽  
◽  
Stephen R. Sutton ◽  
Matt Newville ◽  
Jeffrey P. Fitts ◽  
...  
Keyword(s):  
High Energy ◽  
Geochemical Characterization ◽  
X Ray
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