GEOCHEMICAL ANALYSIS OF MICA SOURCE SPECIMENS AND ARTIFACTS FROM THE ABBOTT FARM NATIONAL HISTORIC LANDMARK (28ME1)

2017 ◽  
Vol 82 (2) ◽  
pp. 374-396 ◽  
Author(s):  
Matthew T. Boulanger ◽  
Gregory D. Lattanzi ◽  
Cody C. Roush ◽  
Michael D. Glascock
Keyword(s):  
Neutron Activation ◽  
Analytical Methods ◽  
Woodland Period ◽  
Geochemical Analysis ◽  
Atlantic Region ◽  
Archaeological Collections ◽  
New Information ◽  
Historic Landmark ◽  
Cultural Traits ◽  
Modern Analytical

The Abbott Farm National Historic Landmark is one of the more significant Woodland-period sites in the Northeast. Numerous Hopewellian cultural traits (copper artifacts, cremated burials, exotic cherts, and mica) have been identified at the site. Numerous potential geological sources for the mica artifacts exist in the Mid-Atlantic region. We explore two analytical methods to evaluate the most likely geological sources of the mica artifacts. Source and artifact specimens were analyzed using pXRF as well as neutron activation. Our pXRF data are suggestive, but show high analytical uncertainty. We make several recommendations relevant to future attempts that would use this kind of instrument to study sheet mica. Our neutron activation results are promising and suggest that geochemical sourcing of mica has much potential. Results of both assays suggest that most of the artifact specimens recovered from Abbott Farm share a similar chemistry, and this composition is very similar to mica from southeastern Pennsylvania. A cut-and-drilled pendant exhibits a chemical makeup distinctly different from all other artifacts and source specimens evaluated here. Although our results are preliminary, the application of modern analytical methods to extant archaeological collections has the potential to provide significant new information.

Modern Analytical Methods using the SEM

2013 ◽  
pp. 4-19
Author(s):  
Felix Reinauer ◽  
◽  
Tomas Vikstrom
Keyword(s):  
Analytical Methods ◽  
Modern Analytical

Modern analytical methods for consideration of natural biological activity

2018 ◽  
Vol 109 ◽  
pp. 198-213 ◽  
Author(s):  
Gulyaim N. Sagandykova ◽  
Paweł P. Pomastowski ◽  
Roman Kaliszan ◽  
Bogusław Buszewski
Keyword(s):  
Biological Activity ◽  
Analytical Methods ◽  
Modern Analytical

scholarly journals Naphthenic Acids: Formation, Role in Emulsion Stability, and Recent Advances in Mass Spectrometry-Based Analytical Methods

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Roselaine Facanali ◽  
Nathália de A. Porto ◽  
Juliana Crucello ◽  
Rogerio M. Carvalho ◽  
Boniek G. Vaz ◽  
...  
Keyword(s):  
Analytical Methods ◽  
Oil And Gas ◽  
Oil Quality ◽  
Economic Value ◽  
Oil And Gas Industry ◽  
Naphthenic Acids ◽  
Gas Industry ◽  
Oil In Water ◽  
Oil Emulsions ◽  
Modern Analytical

Naphthenic acids (NAs) are compounds naturally present in most petroleum sources comprised of complex mixtures with a highly variable composition depending on their origin. Their occurrence in crude oil can cause severe corrosion problems and catalysts deactivation, decreasing oil quality and consequently impacting its productivity and economic value. NAs structures also allow them to behave as surfactants, causing the formation and stabilization of emulsions. In face of the ongoing challenge of treatment of water-in-oil (W/O) or oil-in-water (O/W) emulsions in the oil and gas industry, it is important to understand how NAs act in emulsified systems and which acids are present in the interface. Considering that, this review describes the properties of NAs, their role in the formation and stability of oil emulsions, and the modern analytical methods used for the qualitative analysis of such acids.

Science of Art and Analysis: A Mixture for Undergraduate Non-Specialists

1992 ◽  
Vol 267 ◽  
Author(s):  
W. Stanley Taft ◽  
James W. Mayer
Keyword(s):  
Physical Properties ◽  
Computer Science ◽  
Undergraduate Students ◽  
Analytical Methods ◽  
Art History ◽  
Analytical Techniques ◽  
Cornell University ◽  
The Third ◽  
Works Of Art ◽  
Modern Analytical

ABSTRACTAt Cornell University we are in the third year of teaching an interdisciplinary, undergraduate course on the physical properties and structures of works of Art, and the modern analytical methods used to investigate them: Art, Isotopes, and Analysis. The challenge is to explain concepts familiar to museum scientists and conservators to a group of 150 undergraduate students with a background that ranges from Art History to Computer Science. Painting techniques (Fresco, Tempera, Oil, etc.) are demonstrated to the class. The analytical techniques involve the interactions of electrons, photons, ions and neutrons with pigments and other materials. This instructional approach serves as an introduction to published analyses of works of art.

Production and Examination of Colour-Galvanized Steel Test Sheets by Modern Analytical Methods

2012 ◽  
Vol 729 ◽  
pp. 61-67 ◽  
Author(s):  
Gábor Lévai ◽  
Melinda Godzsák ◽  
Alfred Ender ◽  
Róbert Márkus ◽  
Tamas I. Török
Keyword(s):  
Intermetallic Compound ◽  
Analytical Methods ◽  
Galvanized Steel ◽  
Strong Impact ◽  
Molten Zinc ◽  
The Impact ◽  
Modern Analytical

Nowadays the most commonly used baths for hot-dip galvanizing are the ones which contain about 0.1 ... 0.2% of aluminium. Besides aluminium, the effects of the addition of small quantities of titanium (up to 0.0005%) to the bath have recently been studied in detail by Culcasi et al. [2]. They proved the strong impact of adding a small amount of titanium on the development of the iron-zinc layer, which influences primarily the building up of the intermetallic compound film Fe2Al5 on the surface of the steel piece in contact with the molten zinc. This aluminium-alloyed hot-dip bath with titanium usually does not form a nicely coloured surface [. Therefore, our experiments were limited to test only the effect of adding titanium to the molten zinc which contains only traces of aluminium in order to study the impact of titanium on surface colouring using GD-OES spectrometry.

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