The Cahokia Connection at the Lake Providence Mounds, Louisiana

2020 ◽  
pp. 391-408 ◽  
Author(s):  
Richard A. Weinstein ◽  
Douglas C. Wells

Several hundred potentially exotic sherds were recovered from late Coles Creek period (ca. A.D. 1150 to 1260) contexts at the Lake Providence Mounds in northeast Louisiana. A number of these sherds appeared to represent the remains of vessels from Cahokia or sites in the American Bottom region of southern Illinois, while others likely were local copies of Cahokia vessels. A selected sample of these “exotic” sherds, along with recognized local specimens, were subjected to petrographic thin sectioning (petrographic analysis) and instrumental neutron activation analysis (INAA). These analyses suggested that some of the potentially exotic sherds were, indeed, from the American Bottom area, while others could not be sources to a specific region. Possible reasons for the exotic vessels at Lake Providence are discussed.

Author(s):  
Timothy K. Perttula ◽  
Robert Z. Selden

Characterizing the chemical and mineralogical composition of ceramic vessels and sherds from Woodland and Caddo sites by means of instrumental neutron activation analysis (INAA) and petrographic analysis provides a unique opportunity to gather and investigate empirical evidence from ceramic vessels (and perhaps their contents?) on their trade and exchange at varying scales conducted by ancestral Caddo people with their neighbors, both near and far (i.e., other ancestral Caddo groups as well as non-Caddo communities). This evidence in turn can be used to explore changes in the nature of social and economic relationships between particular Caddo groups and other prehistoric populations. Identified compositional and paste differences that have been identified between the different wares made by Caddo groups (i.e., plain wares, utility wares, and fine wares) have also been employed to explore functional and technological differences in vessel function and form.


2006 ◽  
Vol 17 (1) ◽  
pp. 90-103 ◽  
Author(s):  
Robert J. Sharer ◽  
Andrew K. Balkansky ◽  
James H. Burton ◽  
Gary M. Feinman ◽  
Kent V. Flannery ◽  
...  

AbstractThe 2005 articles by Stoltman et al. and Flannery et al. to which Neff et al. (this issue) have responded are not an indictment of instrumental neutron activation analysis (INAA) but, rather, of the way Blomster et al. (2005) misuse it and of the hyperbolic culture-historical claims they have made from their INAA results. It has long been acknowledged that INAA leads not to sources but to chemical composition groups. Based on composition groups derived from an extremely unsystematic collection of sherds from only seven localities, Blomster et al. claim that the Olmec received no carved gray or kaolin white pottery from other regions; they also claim that neighboring valleys in the Mexican highlands did not exchange such pottery with each other. Not only can one not leap directly from the elements in potsherds to such sweeping culture-historical conclusions, it is also the case that other lines of evidence (including petrographic analysis) have for 40+ years produced empirical evidence to the contrary. In the end, it was their commitment to an unfalsifiable model of Olmec superiority that led Blomster et al. to bypass the logic of archaeological inference.


2018 ◽  
Vol 1 (1) ◽  
pp. 1-13

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.


2016 ◽  
Vol 5 (03) ◽  
pp. 4892 ◽  
Author(s):  
Ratna Raju M.* ◽  
Madhusudhana Rao P. V. ◽  
Seshi Reddy T. ◽  
Raju M. K. ◽  
Brahmaji Rao J. S. ◽  
...  

A study was undertaken to evaluate the inorganic elements for humans in two Indian medicinal plants leaves, namely Sphaeranthus indicus, and Cassia fistula by Instrumental Neutron Activation Analysis (INAA). INAA experiment was performed by using 20 kW KAMINI Reactor at Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam. The emitted gamma rays were measured using gamma ray spectrometer. The concentrations of Al, Br, Ca, Fe, K, La, Mg, Mn, Na, Sc, V and Zn were determined in the selected medicinal plants. The medicinal leaves are using in treatment of various important ailments. The elemental content in selected medicinal leaves is various proportions depending on the soil composition, location of plant specimen and the climate in which the plant grows.


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