scholarly journals Chemical composition of hydrothermal ores from Mid-Okinawa Trough and Suiyo Seamount determined by neutron activation analysis

2007 ◽  
Vol 41 (2) ◽  
pp. 141-148 ◽  
Author(s):  
TAKUROH NOGUCHI ◽  
TAMOTSU OOMORI ◽  
AKIRA TANAHARA ◽  
NAOTO TAIRA ◽  
JITSUYA TAKADA ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Chemical Composition ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Okinawa Trough

Sources of Some Obsidian Flakes from a Paleoindian Site in Guatemala

1977 ◽  
Vol 42 (1) ◽  
pp. 114-118 ◽  
Author(s):  
F. H. Stross ◽  
H. V. Michel ◽  
F. Asaro ◽  
R. Gruhn
Keyword(s):  
Neutron Activation Analysis ◽  
Chemical Composition ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Different Sources

Neutron activation analysis was used to determine the chemical composition of sources of obsidian artifacts from the Paleoindian site of Los Tapiales in Guatemala with an occupation date of around 10,700 radiocarbon years ago. Three different sources were detected, all between 50 and 75 km from Los Tapiales. The predominant source represented in our ten samples was in the Rio Pixcayá area, and another was in the Tajumulco area. A third source, identified by comparison with other work, appears to be in the area of San Bartolomé Milpas Altas.

Neutron activation analysis for assessing chemical composition of dry dog foods

2011 ◽  
Vol 291 (1) ◽  
pp. 245-250 ◽  
Author(s):  
Camila Elias ◽  
Elisabete A. De Nadai Fernandes ◽  
Márcio Arruda Bacchi
Keyword(s):  
Neutron Activation Analysis ◽  
Chemical Composition ◽  
Activation Analysis ◽  
Neutron Activation

Large-Scale Patterns in the Chemical Composition of Mississippian Pottery

1996 ◽  
Vol 61 (3) ◽  
pp. 555-572 ◽  
Author(s):  
Vincas P. Steponaitis ◽  
M. James Blackman ◽  
Hector Neff
Keyword(s):  
Neutron Activation Analysis ◽  
Chemical Composition ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Clay Mineral ◽  
Mississippi River ◽  
Large Scale ◽  
Long Distance ◽  
Future Studies ◽  
Chemical Groups

Neutron activation analysis of Mississippian sherds from 21 regions across the Southeast has revealed the existence of distinctive chemical groups that are associated with four large geographical areas. One such group is associated with sites along the Mississippi River and its western tributaries, a second is associated with sites on the Appalachian Rim in Tennessee, a third is associated with sites on the Piedmont and associated drainages, and a fourth is associated with sites in Alabama. This pattern reflects the existence of several large, clay-mineral provinces in the Southeast that now can be recognized as sources in future studies of long-distance exchange.

Neutron Activation Analysis of Later Prehistoric Pottery from the Western Isles of Scotland.

1986 ◽  
Vol 52 ◽  
pp. 105-129 ◽  
Author(s):  
Patrick G. Topping
Keyword(s):  
Neutron Activation Analysis ◽  
Chemical Composition ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Statistical Techniques ◽  
Composition Analysis ◽  
Prehistoric Pottery ◽  
Chemical Composition Analysis ◽  
Prehistoric Ceramics ◽  
Traditional Approaches

The pottery of the later prehistoric period in the Western Isles of Scotland displays a variety of decorative styles and forms not found elsewhere on the Scottish mainland. Traditional approaches have attempted to define stylistic sequences or to identify wares to which chronological and cultural labels may be attached. In this study neutron activation analysis was utilized to examine if the distinctions which had been drawn were mirrored by chemical composition. Analysis of clay beds had indicated that the analytical and statistical techniques which were employed were sensitive enough to identify patterns which existed within the data. The results for the later prehistoric ceramics indicated that pottery was probably locally produced and locally distributed and that the clays involved in the manufacture of metalworking moulds and crucibles were different in terms of source or method of preparation from those employed in the manufacture of the more mundane range of domestic vessels.

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