Dating Techniques: Radiometric (Other Keyword)
26-50 (96 Records)
The Old River Bed delta is a premier open-air Paleoindian locality in the eastern Great Basin. Its chief distinction is scale—some 2,000 square kilometers-plus of nearly continuous and single-component archaeological material on what would have been the largest basin wetland in the region. But the record is largely surficial. In this poster, we detail a series of sites that have yielded temporal data from buried cultural contexts. The sites help clarify the broader associations of artifact types...
Dates Too Old?: Mixed Carbon Reservoirs Integrate Carbon from Freshwater Reservoirs and the Atmosphere (2018)
Sources of carbon in wetlands and calcareous areas represent unique challenges for interpreting the archaeological radiocarbon record. Atmospheric carbon dioxide is assumed to be the only carbon source for photosynthesis. However, dating modern and historic reference fish and modern reference wild rice indicates the presence of ancient carbon in bones and plant material. Dating four historic reference fish obtained from the Mississippi River in 1939 in southeastern Minnesota yielded four...
Dating Charred Food Crust: Offsets, Pretreatment, and Organic Compunds (2019)
This is an abstract from the "SAA 2019: General Sessions" session, at the 84th annual meeting of the Society for American Archaeology. Unlike charcoal, charred food residue has an obvious advantage of fundamental association with use of the pottery and hence, human activity. Food is annual or short-lived. Usually animals hunted for food live only a few to perhaps a few tens of years. Therefore, good dates on food residue from ceramics or pottery should tighten ceramic chronologies and provide...
Dating Postclassic Maya Occupation in the Belize River Valley (2023)
This is an abstract from the "SAA 2023: Individual Abstracts" session, at the 88th annual meeting of the Society for American Archaeology. Gordon Willey’s pioneering work in the Upper Belize River Valley presented some of the first perspectives on household and community archaeology in the Maya Lowlands. Beginning with that work, scholars came to identify Postclassic occupation at sites along the Belize River, primarily at Barton Ramie and later at Baking Pot. However, the Barton Ramie...
Dating the Spirit Men: Radiocarbon Dating Saltwater Rock Art of the Yanyuwa People in Northern Australia (2018)
Working with Yanyuwa elders, we collected seven rock painting samples for radiocarbon dating from Kamadarringabaya rock shelter on Vanderlin Island in the southwest Gulf of Carpentaria (Northern Territory). Hand motifs – prints and stencils – dominate the site, covering the shelter walls and roof, and are said by Yanyuwa to be the hands of the Namurlajanyugku spirit beings. In control experiments, negligible levels of humic acid contamination were shown to be present in the unpainted rock;...
Deptford Settlement in South Carolina (2019)
This is an abstract from the "SAA 2019: General Sessions" session, at the 84th annual meeting of the Society for American Archaeology. Deptford has been construed as a phase with a time-space-content connotation that incorporates aspects of pottery and adaptation. Recently, we examined regional settlement by considering Deptford phase site distributions and radiometric dates. In this study, we take our analysis a step further by constructing ceramic seriations for sub-regions in which...
Developing High-Precision Chronologies for Fremont Foraging-Farming Transitions in Western North America (2021)
This is an abstract from the "Constructing Chronologies II: The Big Picture with Bayes and Beyond" session, at the 86th annual meeting of the Society for American Archaeology. Fremont societies represent the northernmost adoption of agriculture in Western North America. Research on the Fremont provides one of the few opportunities in the world to understand the processes behind both the adoption and the abandonment of agriculture. Decades of research have illustrated how variability is a...
Differentiating Ecological Contexts of Plant Cultivation and Animal Herding: Implications for Culture Process (2019)
This is an abstract from the "Archaeology on the Edge(s): Transitions, Boundaries, Changes, and Causes" session, at the 84th annual meeting of the Society for American Archaeology. Over the last few decades archaeologists around the globe have documented a much more variable pattern of prehistoric foraging and food production than was previously imagined. We have also made great progress understanding the macroecology related to variation in hunting-gathering subsistence and social...
Early Bronze Age Cemeteries on Lake Baikal, Siberia: Their History and Patterns of Use (2023)
This is an abstract from the "Northeast Asian Prehistoric Hunter-Gather Lifeways: Multidisciplinary, Individual Life History Approach" session, at the 88th annual meeting of the Society for American Archaeology. Prehistoric hunter-gatherer cemeteries are usually analyzed as one chronologically flat block of data representing certain groups of people. While justified by small sample sizes or dating problems, such an approach is obviously ahistorical in that it denies these cemeteries and...
Ecological Succession of the Laurentide Ice Sheet: A Study of Human Colonization Lag in the Late Pleistocene and Early Holocene Radiocarbon Record (2023)
This is an abstract from the "SAA 2023: Individual Abstracts" session, at the 88th annual meeting of the Society for American Archaeology. The ice margin chronology for North America provides archaeologists with discrete spatial units, much like stratigraphic units of an excavation grid, that aid in interpreting the archaeological record of colonizing populations. Treating deglaciation as an opening for a subsequent colonization event, ice recession helps contextualize Paleoindian population...
The Emerging Picture of Human Occupation at the Cooper's Ferry Site During the Bølling-Allerød Interstadial (2019)
This is an abstract from the "Current Perspectives on the Western Stemmed Tradition-Clovis Debate in the Far West" session, at the 84th annual meeting of the Society for American Archaeology. Archaeological excavations conducted from 2009-2018 at the Cooper's Ferry site in west-central Idaho revealed a long record of repeated human occupation encompassing the late Pleistocene to early Holocene periods. Lithostratigraphic unit 3 (LU3) is a loess deposit found near the bottom of the site that...
Evaluating Chronological Hypotheses by Simulating Radiocarbon Datasets (2019)
This is an abstract from the "Novel Statistical Techniques in Archaeology I (QUANTARCH I)" session, at the 84th annual meeting of the Society for American Archaeology. Evaluating chronological hypotheses using complex radiocarbon datasets is challenging. Sources of variability, including measurement error, interlab variability, uncertainty associated with the radiocarbon calibration curve, the inherent randomness of the physical processes of radiocarbon formation and decay, and potential...
Examining Multiple Groups of Chronometric Data Using Multiple Methods: An Example from the Prehispanic U.S. Southwest (2021)
This is an abstract from the "Constructing Chronologies II: The Big Picture with Bayes and Beyond" session, at the 86th annual meeting of the Society for American Archaeology. Over 4,000 radiocarbon age estimates are used to examine temporal trends in the Jornada region of the American Southwest between 4500 and 400 BP. Chronometric analysis reveals changing frequencies in architectural forms, technologies, and subsistence, a series of punctuated demographic trajectories and regional...
Fremont Maize Cultivation and Latest Holocene Climate Variability in the Cub Creek Archaeological District, Dinosaur National Monument (2018)
The Cub Creek Archaeological District in northern Utah’s Dinosaur National Monument was an early center of Fremont maize cultivation and village settlement AD 450-850. Cub Creek lies near the northern limit of maize cultivation in western North America in the foothills of the Uinta Mountain Range. We couple a Bayesian analysis of radiocarbon-dated pithouses and roasting features with a 2,115-year tree-ring reconstruction of August-July precipitation to explore relationships between Fremont...
Habitat-Specific Marine Reservoir Corrections along the Central California Coast: The Effects of Differential Upwelling (2019)
This is an abstract from the "SAA 2019: General Sessions" session, at the 84th annual meeting of the Society for American Archaeology. A confluence of natural factors has created three different ecological habitats for marine shellfish with potentially unique marine reservoir offsets along the central California coast. Deep-water trenches adjacent to the rocky points (e.g., Arguello, Conception, Sal), create localized upwelling environments. Reported offsets range from 400-1000 years for...
High Resolution Chronology of the Human Occupation South of Choapa Basin (31°34’ -32° S), Chile (2018)
The area south of Choapa basin in Chile has long been subjected to archaeological research through scientific as well as cultural research management projects. Surveys, excavations, and sampling over these roughly 5000 km2 area has yielded over 370 radiocarbon dates plus over 120 thermoluminiscence dates (almost 0,1 dates/km2). Dates range from 30000 cal BP to modern, but the human occupation is constrained in the last 13,000 years. Such chronometric resolution allows discussing the intensity of...
High-Precision AMS Radiocarbon Chronologies Demonstrate Short-Lived Agricultural Village Occupations on the Northern Colorado Plateau (2023)
This is an abstract from the "The Socioecological Dynamics of Holocene Foragers and Farmers" session, at the 88th annual meeting of the Society for American Archaeology. The Fremont archaeological complex provides an important window into the socioecological dynamics underwriting the formation of settled pithouse communities in the western North America drylands. We developed high-precision AMS radiocarbon chronologies based on short-lived annuals for four Fremont sites (Cub Creek, Caldwell...
A High-Resolution Chronology for the Palatial Complex of Xalla Combining a Bayesian Radiocarbon Model with Archaeomagnetic Ages (2021)
This is an abstract from the "The Palace of Xalla in Teotihuacan: A Possible Seat of Power in the Ancient Metropolis" session, at the 86th annual meeting of the Society for American Archaeology. A high-resolution chronology for the palatial complex of Xalla, excavated by L. R. Manzanilla from 2000 to 2019, was constructed combining archaeomagnetic dates, a Bayesian radiocarbon model, and detailed information about sample type and archaeological context. The Bayesian model, calibrated using...
Huff Village Revisited: A New Radiocarbon Chronology for a Pivotal Time (2019)
This is an abstract from the "SAA 2019: General Sessions" session, at the 84th annual meeting of the Society for American Archaeology. The large, heavily-fortified Huff village site in North Dakota is a quintessential Late Prehistoric plains village within the Middle Missouri region of the Northern Plains. Since the 1940s, attempts to establish Huff’s occupational history and absolute placement in time achieved only coarse-grained or inconclusive results, suggesting village occupations...
Impacts of Abrupt Climate Change Events on Human Paleodemography in the Great Basin (2021)
This is an abstract from the "People, Climate, and Proxies in Holocene Western North America" session, at the 86th annual meeting of the Society for American Archaeology. A central question of research on prehistoric human-environment interaction concerns the role of abrupt versus gradual climate and environmental changes on human demography. This research requires high resolution, regional-scale paleoenvironmental records that provide researchers with the ability to discern variable spatial...
In Search of Hot (or Cool) Dates with Larry (2019)
This is an abstract from the "The Art and Archaeology of the West: Papers in Honor of Lawrence L. Loendorf" session, at the 84th annual meeting of the Society for American Archaeology. Rowe’s research group at Texas A&M University changed their direction about three decades ago when they undertook to develop a method for dating rock paintings. The method is based on the use of plasma-chemical oxidation to gently, at low temperatures, convert to carbon dioxide the organic material that was...
Inferences about and Inferences from: A Comparison of Kernel Density Estimation and Latent Mixture Modeling in Demographic Temporal Frequency Analysis (2019)
This is an abstract from the "Novel Statistical Techniques in Archaeology I (QUANTARCH I)" session, at the 84th annual meeting of the Society for American Archaeology. Temporal frequency analysis (TFA) comprises methods both for the characterization of temporal distributions of archaeological samples and for drawing inferences about their underlying data generating processes (DGPs). In motivation, these two activities resemble descriptive and inferential statistics, respectively. However,...
Is La Tène (Still) Relevant in British Iron Age Chronology? (2021)
This is an abstract from the "Constructing Chronologies II: The Big Picture with Bayes and Beyond" session, at the 86th annual meeting of the Society for American Archaeology. La Tène: a chronology that lives beyond the site, beyond regional and national boundaries; a term that conjures images of swirling ambiguous imagery, fine metalwork and shining pots. In Britain the term describes artifacts of apparently comparative date, in particular brooches. La Tène I brooches have strong affinities...
Iterative Temporal Hygiene and Bayesian Analyses of Radiocarbon Datasets: The Impact of Kernel Density Estimation on Clarifying Temporal Relationships among Woodland Period Phases, Middle Scioto Valley, Ohio (2021)
This is an abstract from the "Bayesian Archaeology" session, at the 86th annual meeting of the Society for American Archaeology. The accumulation of radiocarbon dates for Scioto Valley Woodland period sites has created a palimpsest, which inhibits chronological understanding of cultural change. The project iteratively integrates temporal hygiene and Bayesian analyses of large radiocarbon datasets from multiple sites, in an attempt to clean up problematic features of such datasets and provide...
Jerry Moore: Aportes a la arqueología en el extremo noroeste peruano (2023)
This is an abstract from the "Humble Houses to Magnificent Monuments: Papers in Honor of Jerry D. Moore" session, at the 88th annual meeting of the Society for American Archaeology. Jerry Moore, desde el año 1996, ha realizado grandes contribuciones a la prehistoria de Tumbes, lugar con escasa investigación, ubicado en el extremo norte de la costa del Perú, frontera con Ecuador. Entre los años 2003 y 2007, excavó los sitios arqueológicos de El Porvenir (4750-1200 aC), Uña de Gato (2200-800...