Plumbate Origins and Development

1988 ◽  
Vol 53 (3) ◽  
pp. 505-522 ◽  
Author(s):  
Hector Neff ◽  
Ronald L. Bishop
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Littoral Zone ◽  
Intermediate Stage ◽  
Late Classic ◽  
The Pacific ◽  
Early Postclassic ◽  
Pacific Slope ◽  
Compositional Study

The question of spatial and temporal origins for Plumbate ware is addressed with archaeological evidence from the eastern Soconusco region of the Pacific slope, and evidence from a recent stylistic and compositional study (the latter by neutron-activation analysis). This evidence confirms the Pacific coastal-origins hypothesis proposed by Shepard (1948), suggesting specifically that the first Plumbate, designated "Guayabal Plumbate," was produced in or near the littoral zone of southwest Guatemala. The development of Early Postclassic Tohil Plumbate out of Late Classic San Juan Plumbate is found not to involve a hypothesized intermediate stage (designated "Robles" in previous literature). The fancy abstract-incised and effigy style associated with Tohil Plumbate is argued to represent a stylistic departure of a small group of ceramic artisans who previously had worked in a long-lived "background" tradition.

SMALL-SCALE HOUSEHOLD CERAMIC PRODUCTION: NEUTRON ACTIVATION ANALYSIS OF PLAIN AND DECORATED CERAMICS FROM PRE-AZTEC XALTOCAN, MEXICO

2020 ◽  
pp. 1-19
Author(s):  
Kristin De Lucia ◽  
Matthew T. Boulanger ◽  
Michael D. Glascock
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Raw Materials ◽  
Ceramic Production ◽  
Small Scale ◽  
Economic Systems ◽  
Early Postclassic ◽  
Ceramic Manufacture ◽  
Social Units

Abstract This study examines small-scale household ceramic production at the site of Xaltocan, Mexico, to understand the organization of household ceramic production prior to the development of the Aztec Empire. We examine utilitarian vessels and serving wares from an Early Postclassic (a.d. 900–1200) domestic context using neutron activation analysis (NAA). We also examine archaeological evidence for ceramic manufacture. The NAA data reveal that similar raw materials and paste recipes were used for both utilitarian and decorated wares, suggesting that households produced both plain and decorated pottery. We conclude that ceramic production was an intermittent activity that took place alongside other crafts and agriculture. By looking at ceramics within their contexts of use and production, we consider the practices and choices made by individual social units, which is crucial to interpreting broader Early Postclassic economic systems and the ways in which commoners influenced these systems.

Trace Element Analysis of Obsidian Artifacts from Three Shell Midden Sites in the Littoral Zone, Chiapas, Mexico

1980 ◽  
Vol 45 (3) ◽  
pp. 540-550 ◽  
Author(s):  
Fred W. Nelson ◽  
Barbara Voorhies
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Littoral Zone ◽  
Trace Element Analysis ◽  
Late Period ◽  
Element Analysis ◽  
X Ray ◽  
San Martín ◽  
Obsidian Source

Forty-two obsidian artifacts from the Chantuto Zone, Chiapas, Mexico, have been analyzed by neutron activation analysis, and fifteen artifacts were reanalyzed using X-ray fluorescence spectrometry. These artifacts date to the Chantuto phase (3000-2000 B.C.), late in the Archaic period, and to a later period or periods. These analyses have made it possible to compare the two methods of analysis and also have made it possible to assign an obsidian source to each artifact. It has been shown that the majority of the obsidian originated from Tajumulco, with smaller amounts coming from El Chayal during the Chantuto phase and from El Chayal, San Martin Jilotepeque, and Pachuca during the late period.

Identification of the Sources of Hopewellian Obsidian in the Middle West

1969 ◽  
Vol 34 (1) ◽  
pp. 1-14 ◽  
Author(s):  
James B. Griffin ◽  
A. A. Gordus ◽  
G. A. Wright
Keyword(s):  
Neutron Activation Analysis ◽  
New Mexico ◽  
Activation Analysis ◽  
Neutron Activation ◽  
National Park ◽  
Pacific Coast ◽  
Source Area ◽  
Central Mexico ◽  
The Pacific ◽  
Middle West

AbstractOne hundred and twenty years ago, the first obsidian implements were reported from Hopewellian mounds by Squier and Davis (1848). Since that time, a number of regions have been suggested as the source area: Alaska, the Pacific Coast, Yellowstone National Park, New Mexico, and central Mexico. Neutron activation analysis of the elemental composition of Hopewellian obsidian indicates two separate element groups. One of these, the 150 Group, has its source at Obsidian Cliff in Yellowstone. The second, the 90 Group, is also located in Yellowstone, but the exact flow has not yet been discovered.

Investigation of cross sections of reactions used in neutron activation analysis

Kerntechnik ◽  
2011 ◽  
Vol 76 (2) ◽  
pp. 136-141 ◽  
Author(s):  
E. Tel ◽  
M. Şahan ◽  
F. A. Uğur ◽  
H. Şahan ◽  
A. Aydin
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Cross Sections

Trace Element Contents in Thyroid Cancer Investigated by Instrumental Neutron Activation Analysis

2018 ◽  
Vol 1 (1) ◽  
pp. 1-13
Keyword(s):  
Thyroid Cancer ◽  
Neutron Activation Analysis ◽  
Instrumental Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Trace Element ◽  
Thyroid Tissue ◽  
Tissue Levels ◽  
Trace Element Contents ◽  
Element Contents

Background: Thyroid cancer is an internationally important health problem. The aim of this exploratory study was to evaluate whether significant changes in the thyroid tissue levels of Ag, Co, Cr, Fe, Hg, Rb, Sb, Sc, Se, and Zn exist in the malignantly transformed thyroid. Methods: Thyroid tissue levels of ten trace elements were prospectively evaluated in 41 patients with thyroid malignant tumors and 105 healthy inhabitants. Measurements were performed using non-destructive instrumental neutron activation analysis with high resolution spectrometry of long-lived radionuclides. Tissue samples were divided into two portions. One was used for morphological study while the other was intended for trace element analysis. Results: It was found that contents of Ag, Co, Cr, Hg, and Rb were significantly higher (approximately 12.8, 1.4, 1.6, 19.6, and 1.7 times, respectively) in cancerous tissues than in normal tissues. Conclusions: There are considerable changes in trace element contents in the malignantly transformed tissue of thyroid.

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