XRF (Other Keyword)

1-25 (34 Records)

Analysis of Ancient Chinese Pottery Utilizing X-Ray Fluorescence and Diffuse Reflectance Infrared Fourier Transform Spectroscopy (2017)
DOCUMENT Citation Only Michael Deibel. Corinne Deibel. Ye Wa. Liping Yang.

Field studies were performed at the Yangguanzhai Neolithic site near Xi’an, China, using an Olympus Delta Premium portable XRF spectrometer and an Agilent ExoScan FTIR spectrometer. 932 ceramic sherds collected from nine locations across the site were selected and classified based on color (red, tan and brown), decorations (painted, rope impression - cord or thread, and plain), and time period (Miaodigou and Banpo IV). Each sherd was broken, so that the analysis could be performed on a clean...


Analysis of Obsidian Procurement from the Wurlitzer Site, Butte County, California (2019)
DOCUMENT Citation Only Joshua Nowakowski.

This is an abstract from the "SAA 2019: General Sessions" session, at the 84th annual meeting of the Society for American Archaeology. This presentation will show the results of XRF testing of obsidian artifacts from the Wurlitzer site in Butte County, California. The purpose of this testing is to create a better context from which to understand the site. Previous research has focused primarily on creating a chronology of the site using radiocarbon dating, point typologies, and comparison to...


The Bonneville Basin and Snake River Plain Connection: Early Archaic Lithic Technology, Geochronology, and Obsidian Procurement at Bonneville Estates and Veratic Rockshelters (2016)
DOCUMENT Citation Only Joshua Keene. Ted Goebel.

Though often considered parts of two different culture areas, the upper Snake River Plain of southeastern Idaho and the Bonneville Basin of the eastern Great Basin may have more similarities in land use and lithic technology than usually thought. In fact, commonalities can be easily documented in projectile point chronologies, subsistence patterns, and even the use of some of the same obsidian sources. In this paper, we consider the early Archaic period, when comparable ecological changes...


Calculating the Probability of Local Coarse Earthenware Manufacture at the 17th Century Coan Hall Site Utilizing pXRF Analysis (2019)
DOCUMENT Citation Only Eric Schweickart.

This is an abstract from the "Technology in Terrestrial and Underwater Archaeology" session, at the 2019 annual meeting of the Society for Historical Archaeology. Excavations at the Coan Hall site in Northumberland County Virginia, targeting the earliest permanent English settlement on the southern bank of the Potomac River, have uncovered sherds of low-fired, coarse earthenware ceramics with an unusual hematite-speckled paste. Moreover, fragments of daub have been recovered from the site...


Characterization of Neolithic Jade Objects from Shimao and Xinhua, Shaanxi Province, China, Using Handheld Portable Techniques (2017)
DOCUMENT Citation Only Corinne Deibel. Michael Deibel. Jiqiao Shi. Johnathon Hornak. Hannah Munro.

50 jade objects from the Late Longshan period, excavated from the Shimao (25) and Xinhua (25) Neolithic sites, were characterized mineral groups using handheld X-Ray Fluorescence (hhXRF) and handheld specular reflectance Fourier transform infrared spectroscopy (hhFTIR). The objects were found to belong to three types of minerals. 22 objects found in Shimao (88%) are nephrite (19 tremolites and 3 actinolites), two are calcite and one antigorite. From Xinhua, 9 objects (36 %) are nephrite...


Exploring the Viability of Geochemically Sourcing Elaborate Metates Through XRF Spectroscopy (2017)
DOCUMENT Citation Only Matthew Abtosway.

The Central American elaborate metate is a perplexing group of ground stone artifacts. Their function continues to be the subject of debate, with interpretations ranging from hallucinogenic and food preparation to ritual seating. It is difficult to deny, however, the substantial labor investment represented and likely symbolic significance. X-Ray fluorescence spectroscopy has proven an invaluable tool in the non-destructive geochemical sourcing of archaeological obsidian, providing insights into...


Geochemical Evidence for Dispersed Ground Stone Tool Production at Hohokam Villages in the Middle Gila River Valley, Arizona. (2017)
DOCUMENT Citation Only Craig Fertelmes.

A recent geochemical provenance analysis of Hohokam vesicular basalt grinding tools argued for the nucleated production of trough manos and metates during the Pre-Classic (A.D. 500-1100) and Classic (A.D. 1100-145) periods (Fertelmes 2014). One locus of production was suggested to have been the primary village of Upper Santan, which acquired vesicular basalt from the Santan Mountains and then distributed finished or nearly complete grinding tools to settlements across the Middle Gila River...


A Geomorphic and Elemental Analysis of the Johnston Site (36IN002) (2015)
DOCUMENT Citation Only Mark Durante.

The Johnston site (36In002), in Blairsville, Pa, is the type site for the Johnston Phase of the Monongahela Tradition. This site was first discovered by Ralph Solecki during the River Basin Surveys carried out in preparation for flooding of the Conemaugh River Lake. Following its discovery the site was partially excavated in the 1950’s by Don Dragoo for the Carnegie Museum. The Johnston site has been revisited by archaeologists from Indiana University of Pennsylvania; however, little...


The Home Network: X-ray Florescence and Geochemical Data of Post-Medieval Ceramics in Ulster (2016)
DOCUMENT Citation Only Kathryn Whalen.

The area known as Ulster is one region where complex colonial and ethnic relationships are evident in the past, as well as in the present. This study looks specifically at the trade of ceramics in Post-Medieval Ulster, to see if coarse earthenware ceramics are being imported from elsewhere along with English refined earthenwares or if they are being produced locally in Ireland. Through the use of portable X-ray florescence (pXRF), the multi-elemental makeup of 1342 sherd will be examine to...


How Non-Destructive is XRF: Testing Sample Preparation Techniques for Redware (2016)
DOCUMENT Citation Only Cheryl Frankum.

Can XRF accurately detect the chemical composition of ceramics using non-destructive sample preparation techniques? This study looks at the reliability of the Innov-X Delta XRF unit in detecting the chemical composition of earthenware ceramics through three different sample preparation methods. While there are growing interests in using XRF analysis for various ceramic studies, this research question examines whether different testing strategies will produce different results. This experiment...


Hyperspectral X-Ray Fluorescence of the Luni glasses (2015)
DOCUMENT Citation Only Monica Ganio. Nicholas Barbi. Marc Walton.

To investigate raw materials provenance, date and models of production of archaeological glass it is essential to characterize and define compositional groups based on the elemental composition. However, obtaining such information traditionally requires performing micro-destructive analysis on micro-samples. Here, the use of hyperspectral X-Ray Fluorescence (XRF) is investigated as alternative tool for the examination of Roman natron glass. The full multichannel analyzer (MCA) data of the...


Identifying Historic Ceramics: Applications of X-Ray Fluorescence Spectrometry in Archaeology (2018)
DOCUMENT Citation Only Meredith A Stoops.

While ceramics are prevalent among many historical archaeological excavations, it is often difficult to properly identify ware type, particularly to the archaeologist untrained in ceramic studies.  Even with such training some sherds may still remain unidentifiable.  The purpose of this research is to investigate the feasibility of using a portable X-ray fluorescence spectrometer to accurately categorize ceramic sherds by ware type based on the elemental composition of their glaze.  By analyzing...


Locally-Made or Transported Heirlooms?: XRF Source Analysis of Post-Removal Choctaw Ceramics from Southeastern Okahoma (2015)
DOCUMENT Citation Only Shawn Lambert. Patrick Livingood.

This paper explores the benefits of using compositional analysis in order to investigate whether post-removal Choctaw-made ceramics were locally made in southeastern Oklahoma and/or were transported from their original homeland in east-central Mississippi. A total of 20 sherds were analyzed using X-ray fluorescence spectroscopy (XRF) to determine their chemical composition. 10 sherds are from two post-removal Choctaw sites, 34MC544 and 34MC399 and were compared with 10 sherds from the Pevey...


A Matter of Time – Applications of portable X-Ray Fluorescence in establishing rock art chronologies (2015)
DOCUMENT Citation Only Clare Bedford. David Robinson. Fraser Sturt. Julienne Bernard.

The aim in this examination was to examine the potential for portable XRF technology to contribute to chronologies of in situ rock art. In order to do this pXRF data from Chumash rock art panels in the Wind Wolves Preserve in South Central California were compared with one another, and with readings from ochre found in excavated deposits. These ochre deposits are associated with other artefacts which have known dates. The results showed that multiple pigments were used within each rock art panel...


Obsidian Provenance Studies of Sites in Northern Utah (2015)
DOCUMENT Citation Only Jeffrey Ferguson. James Allison.

Previous studies of obsidian from archaeological sites in Utah Valley and the Salt Lake Valley have used relatively small samples to document temporal shifts in obsidian procurement, with southern sources (especially Black Rock) dominating Fremont assemblages, while most post-Fremont obsidian comes from the Malad source to the north. Our greatly expanded XRF analysis of almost 4,000 obsidian artifacts from sites in Utah and Salt Lake Valleys confirms the temporal change noted by earlier...


Obsidian Sourcing in Western Beringia (2016)
DOCUMENT Citation Only Robert Speakman. Sergey Slobodin. Jeffrey Rasic.

Chemical sourcing of obsidian artifacts serves an important role in understanding prehistoric patterns of mobility, trade, exchange, resource exploitation, and cultural interaction. In Alaska and adjacent areas of Canada, more than 8,000 obsidian artifacts and geologic source samples have been analyzed by various analytical techniques resulting in the identification of more than 50 chemically discrete obsidian groups throughout this vast area. In contrast to Alaska, comparatively little...


Open Obsidian Geochemistry Visualization system for the Andes (2017)
DOCUMENT Citation Only Nicholas Tripcevich. Lisa Trever. Chris J. Kennedy. Eric Kansa. Michael D. Glascock.

Obsidian sourcing studies which provide valuable insights into archaeological mobility and interaction are enhanced by the availability of geochemical analyzers, and especially by the proliferation of portable X-ray fluorescence units. This year we are introducing an open source system for analysis of geochemical datasets available in web-based repository and based on R-Shiny, a browser based analysis and visualization system built on the R project. The Andean Geochemistry data archive, a new...


An Open-Source Calibration Framework for XRF (2018)
DOCUMENT Citation Only Lee Drake.

The Lukas-Tooth and Price algorithm for empirical calibration of x-ray fluorescence systems has become the standard for archaeometry, particularly in obsidian sourcing. Here, a new way of using the computer language R and HTML5 websites is introduced to calibrate these systems.


The Pied Piper in Boston: A Zooarchaeological Analysis of Rats at the Unity Court Tenements (2019)
DOCUMENT Citation Only Liz M. Quinlan.

This is an abstract from the "Zooarchaeology, Faunal, and Foodways Studies" session, at the 2019 annual meeting of the Society for Historical Archaeology. The 2016-17 excavations at Boston’s former Unity Court Tenements yielded an incredibly rich assemblage of 19th-century artifacts. These tenements, in operation 1830-1880, served the ever-growing and changing community of Boston’s North End, and it was expected that their excavation would uncover the complex material culture of those living...


Preliminary Results on Regional Postclassic Aztatlán Obsidian Usage Patterns (2015)
DOCUMENT Citation Only Daniel Pierce.

The usage and trade of obsidian from various sources is well established during the Postclassic in West Mexico. Different qualitatively similar obsidian sources were used in different ways within sites, which suggests preferences for certain sources over others for different types of reduction. No studies, however, have explored this differential usage regionally. Here, I have macroscopically and microscopically analyzed collections from three Aztatlán regional centers in Nayarit: Coamiles, San...


Procedencia e Intercambio de obsidiana durante el Holoceno Medio en la Cuenca de México (ca. 6200-5000 calBP). Un análisis mediante pXRF (2015)
DOCUMENT Citation Only Víctor Hugo García Gómez. Guillermo Acosta Ochoa.

Se caracterizó mediante análisis de Fluorescencia de Rayos X (XRF) un conjunto de obsidianas obtenidas en las excavaciones en el sitio de Tepexpan, Edo. de México y San Gregorio Atlapulco, Xochimilco, D.F. (n=149), procedentes de los niveles precerámicos de ambos sitios, através del análisis de diversos elementos (Na, K, Ti, Mn, Fe, RB, Sr, Y, Zr, Nb y Ba); esto nos permitió conocer la composición química de cada uno de los artefactos líticos para posteriormente efectuar comparaciones con...


Raw Materials, Reuse, and Refuse: A multi-disciplinary study of Karanis glass (2015)
DOCUMENT Citation Only Angela Susak Pitzer.

This multi-disciplinary study comprising archaeological, scientific, and morphological analyses as well as ethnoarchaeology and textual analysis, interrogates how value was assessed in the ancient world by examining Roman glass from Karanis, Egypt. Onsite portable X-ray fluorescence spectrometry (pXRF) analysis of recently excavated glass was conducted since the Egyptian government prohibits the export of artifacts for further analysis. This research, combined with pXRF and electron microprobe...


Revealing Woodland Period Landscape Use at Rat Island, Hamilton Ontario Using Itrax™ XRF Soil Chemical Analysis (2018)
DOCUMENT Citation Only Beatrice Fletcher. Aubrey Cannon. Scott Martin. Eduard Reinhardt.

With its ability to identify slight changes in chemical signatures from small easily obtained soil cores, Itrax™ core scanning provides an unparalleled opportunity to understand anthropogenic impacts on soils and explore the history of landscapes. Located in Lake Ontario less than 500 meters off the shore of Cootes Paradise, Rat Island (AhGx-7) enabled the integration of multi-element x-ray fluorescence analyses into a traditional excavation program. This small island, initially surveyed and...


Rock, Paper,….XRF….: Continuing Improvements to the UI-OSA Lithic Raw Material Assemblage (2015)
DOCUMENT Citation Only Mark Anderson.

The University of Iowa Office of the State Archaeologist (OSA) has an expansive lithic raw material assemblage with a 30 year compilation history. The largest portion contains multiple samples of 75 in-state lithic types while the second portion contains multiple samples from the seven surrounding and 16 additional states. A revision and reorganization of the OSA collection was completed in 2006 to provide a more systematic and consistent approach to lithic identification and sourcing. This...


Scratching the Surface: New Discoveries Within Old Archeological Collections (2016)
DOCUMENT Citation Only Alicia Paresi. Jessica Costello. Nicole Estey.

Here in the NMSC archeology lab, we are privileged to work with archeological collections from national parks across the Northeast.  Many of these collections were excavated before 1987, and in many cases, sat untouched and unutilized in storage until they were eligible for cataloging funds.  We have seen firsthand the incredible research potential – unknown and untapped for decades – that these collections offer.  One memorable collection from Petersburg National Battlefield was excavated in...