Discontinuity in the Fijian Archaeological Record Supported by a Bayesian Radiocarbon Model

Radiocarbon ◽  
2014 ◽  
Vol 56 (1) ◽  
pp. 295-303 ◽  
Author(s):  
David V Burley ◽  
Kevan Edinborough

The Fijian archaeological record is segmented into a series of phases based on distinctive transformations in ceramic forms. Interpretations of the mid-sequence (∼1500–1300 cal BP) transition between the Fijian Plainware phase and the Navatu phase are contentious, with alternative explanations of population replacement versus internal processes of culture change. We present and analyze a series of Fijian Plainware and Navatu phase AMS radiocarbon dates acquired from superimposed but stratigraphically separated occupation floors at the Sigatoka Sand Dunes site on the southwest coast of Viti Levu. Employing an OxCal Bayesian sequential model, we seek to date the temporal span for each occupation as well as the interval of time occurring between occupation floors. The latter is estimated to be 0–43 calendar years at 2σ probability. The magnitude of ceramic and other differences between the Fijian Plainware and Navatu phase occupations at Sigatoka is substantive. We conclude that the abruptness of this change can be explained only by exogenous replacement at the Sigatoka site.

2011 ◽  
Vol 21 (1) ◽  
pp. 1-30 ◽  
Author(s):  
Lisa A. Maher ◽  
E.B. Banning ◽  
Michael Chazan

Few prehistoric developments have received as much attention as the origins of agriculture and its associated societal implications in the Near East. A great deal of this research has focused on correlating the timing of various cultural transformations leading up to farming and village life with dramatic climatic events. Using rigorously selected radiocarbon dates from archaeological sites and palaeoenvironmental datasets, we test the predominate models for culture change from the early Epipalaeolithic to the Pottery Neolithic (c. 23,000–8000 cal. bp) to explore how well they actually fit with well-documented and dated palaeoclimatic events, such as the Bølling-Allerød, Younger Dryas, Preboreal and 8.2 ka event. Our results demonstrate that these correlations are not always as clear or as consistent as some authors suggest. Rather, any relationships between climate change and culture change are more complicated than existing models allow. The lack of fit between these sources of data highlight our need for further and more precise chronological data from archaeological sites, additional localized palaeoclimatic data sets, and more nuanced models for integrating palaeoenvironmental data and prehistoric people's behaviours.


1985 ◽  
Vol 24 (1) ◽  
pp. 115-120 ◽  
Author(s):  
H. E. Wright ◽  
J. C. Almendinger ◽  
J. Grüger

Radiocarbon dates of organic alluvium beneath as much as 40 m of dune sand along the Dismal River have led to the suggestion that the Nebraska Sandhills date from the Holocene rather than the last glacial period. On the other hand, the basal layers of lake and marsh deposits in interdune depressions at three localities date in the range of 9000 to 12,000 yr B.P., implying a pre-Holocene age for the sand dunes. A pollen diagram for one of these sites, Swan Lake, indicates prairie vegetation throughout the last 9000 yr, with no suggestion that the landscape was barren enough to permit the shaping of the massive dunes characterizing the area. Sand was not transported across the site during the Holocene, either during the marsh phase, which lasted until 3700 yr B.P., or during the subsequent lake phase. The sand that buries the alluvium along the Dismal River may represent only local eolian activity, or it may indicate that the younger of the two main dune series identified by H. T. U. Smith (1965, Journal of Geology 73, 557–578) is Holocene in age, and the older one Late Wisconsin in age.


2004 ◽  
Vol 41 (11) ◽  
pp. 1385-1400 ◽  
Author(s):  
Alan F Arbogast ◽  
Randall J Schaetzl ◽  
Joseph P Hupy ◽  
Edward C Hansen

A very prominent buried soil crops out in coastal sand dunes along an ~200 km section of the southeastern shore of Lake Michigan. This study is the first to investigate the character of this soil — informally described here as the Holland Paleosol — by focusing on six sites from Indiana Dunes National Lakeshore north to Montague, Michigan. Most dunes in this region are large (>40 m high) and contain numerous buried soils that indicate periods of reduced sand supply and comcomitant stabilization. Most of these soils are buried in the lower part of the dunes and are thin Entisols. The soil described here, in contrast, is relatively well developed, is buried in the upper part of many dunes, and formed by podzolization under forest vegetation. Radiocarbon dates indicate that this soil formed between ~3000 and 300 calibrated years BP. Pedons of the Holland Paleosol range in development from thick Entisols (Regosols) with A–Bw–BC–C horizonation to weakly developed Spodosols (Podzols) with A–E–Bs–Bw–BC–C profiles. Many profiles have overthickened and (or) stratified A horizons, indicative of slow and episodic burial. Differences in development are mainly due to paleolandscape position and variations in paleoclimate among the sites. The Holland Paleosol is significant because it represents a relatively long period of landscape stability in coastal dunes over a broad (200 km) area. This period of stability was concurrent with numerous fluctuations in Lake Michigan. Given the general sensitivity of coastal dunes to prehistoric lake-level fluctuations, the soil may reflect a time when the lake shore was farther west than it is today. The Holland Paleosol would probably qualify as a formal pedostratigraphic unit if it were buried by a formal lithostratgraphic or allostratigraphic unit.


Author(s):  
Torben Ballin ◽  
Ian Suddaby ◽  
M Cressey ◽  
M Hastie ◽  
A Jackson ◽  
...  

Prehistoric remains were recorded by CFA Archaeology Ltd (CFA) in 2002-03 during a programme of fieldwork at the landfill site within the boundaries of Stoneyhill Farm, which lies 7km to the southwest of Peterhead in Aberdeenshire. These included a clearance cairn with a Late Bronze Age lithic assemblage and a burial cairn, with Late Neolithic and Early Bronze Age lithics and Beaker ceramics. Other lithic scatters of similar date had no certain associations, although pits containing near-contemporary Impressed Wares were nearby. Additional lithic assemblages included material dated to the Mesolithic and Early Neolithic. What may be proto-Unstan Wares in an isolated pit were associated with radiocarbon dates (barley) of the first half of the fourth millennium bc. These findings represent a substantial addition to the local area's archaeological record and form an important contribution to the understanding of lithic technology and ceramics in earlier prehistoric Scotland.This paper is dedicated to the memory of Ian Shepherd, whose site visits enlightened this and other projects undertaken by one of the authors (IS).


Author(s):  
Timothy K. Perttula

The George C. Davis site (41CE19)/Caddo Mounds State Historic Site in Cherokee County, Texas, is a Caddo site that was occupied by ancestral Caddo peoples between ca. A.D. 940 and the late 1200s (based on an extensive suite of calibrated radiocarbon dates, see below) on a large alluvial terrace of the Neches River in East Texas. The site is a planned civic-ceremonial center that has three earthen mounds—Mound A, a large platform mound with elite residences and special purpose structures; Mound B, a second platform mound; and Mound C, a burial mound used as a cemetery for the elite or ranked members of the society—a borrow pit, and a large associated village (estimated at more than 110 acres) with more than 100 known or suspected structures. The structures include the domestic residences of the commoners that lived at the site as well as the residences for the elites. The George C. Davis site is an archaeological site that has yielded information of major scientific importance concerning the origins and development of the Caddo peoples, a still little-known but significant stratified and complex society that lived in the far western reaches of the Southeastern United States and whose cultural traditions have lasted for more than 1000 years. The expansive nature of the archaeological investigations at the George C. Davis site since 1939 has obtained unique information on Caddo community organization and social logic, the nature of Caddo symbolism and ideology, as well as the early existence of important community political, social, and religious activities within special precincts near Mounds A and B. The archaeological work has also obtained key insights into the domestic nature of the community, with residential domiciles dated as early as ca. A.D. 940 organized into compounds with small courtyards; this was not a vacant mound center. Demonstrating great continuity in Caddo community and social organization, the same kinds of domestic compounds seen ca. A.D. 940 and after at the George C. Davis site have also been documented from a 1691 map prepared by a Spanish expedition to a Nasoni Caddo civic-ceremonial center on the Red River in East Texas. The George C. Davis site archaeological record from sacred as well as domestic contexts contains important Caddo data relevant to each of these broad themes. This includes evidence from features for the earliest origins of the community at ca. A.D. 940 as well as features that demonstrate a continuous occupation that lasted until the late A.D. 1200s. The use of tropical cultigens preserved in features has been shown to have been an important subsistence resource in the community, intensifying in use after ca. A.D. 1200 among East Texas Caddo societies, during a period of climate (the Medieval Warm Period) favorable for agriculture in the Caddo area. A crystallization of religion, ideology, and iconographic practice as a measure of complexity is seen in the archaeological record of these early Caddos, denoted by the development of platform mounds with temples and other specialized structures for use by the political and religious elite, the acquisition and exchange of non-local prestige goods, details of architecture and mound construction (the use of berms and selective use of brightly colored soils), and the kinds of elaborate burial features (several with multiple individuals, probably indicative of retainer sacrifice) and associated grave goods in the Mound C mortuary at the site. The George C. Davis has had the most extensive investigations of any Caddo mound site, including very large scale archaeo-geophysical work, and archaeologists have done an exemplary job in publishing the results of their investigations, beginning with the seminal 1949 study prepared by H. Perry Newell and Alex D. Krieger. Taken together, the extensive nature of the work, the quality of the archaeological investigations, and the unique archaeo-geophysical data set, suggest that the George C. Davis site strongly exemplifies the character of a Caddo civic-ceremonial community in the Caddo archaeological area, and through its study has shed unique light on the origins and elaboration of the Caddo cultural tradition. In this article, I document, using a standardized protocol, the ancestral Caddo vessels and vessel sections that have been recovered from various kinds of features at the George C. Davis site since excavations began at the site in 1939. I also discuss the stylistic and functional character of this unique vessel assemblage. The analysis of the recovered ceramic vessels and sherds from the George C. Davis site has been ongoing since the 1940s, and has included innovative work in the chemical characterization of the ceramics as well as the preservation of lipids in samples of ceramic vessels and sherds. Dr. Robert Z. Selden has also obtained 3-D scans of many of the vessels discussed in this article.


Author(s):  
Eóin W. Parkinson ◽  
T. Rowan McLaughlin ◽  
Carmen Esposito ◽  
Simon Stoddart ◽  
Caroline Malone

AbstractThis paper reviews the evidence for long term trends in anthropogenic activity and population dynamics across the Holocene in the central Mediterranean and the chronology of cultural events. The evidence for this has been constituted in a database of 4608 radiocarbon dates (of which 4515 were retained for analysis following initial screening) from 1195 archaeological sites in southern France, Italy and Malta, spanning the Mesolithic to Early Iron Age periods, c. 8000 to 500 BC. We provide an overview of the settlement record for central Mediterranean prehistory and add to this an assessment of the available archaeological radiocarbon evidence in order to review the traditional narratives on the prehistory of the region. This new chronology has enabled us to identify the most significant points in time where activity levels, population dynamics and cultural change have together caused strong temporal patterning in the archaeological record. Some of these episodes were localized to one region, whereas others were part of pan-regional trends and cultural trajectories that took many centuries to play out fully, revealing prehistoric societies subject to collapse, recovery, and continuing instability over the long-term. Using the radiocarbon evidence, we model growth rates in the various regions so that the tempo of change at certain points in space and time can be identified, compared, and discussed in the context of demographic change. Using other published databases of radiocarbon data, we have drawn comparisons across the central Mediterranean to wider prehistoric Europe, and northern Africa. Finally, we include a brief response to the synchronously published but independently developed paper (Palmisano et al. in J World Prehist 34(3), 2021). While there are differences in our respective approaches, we share the general conclusions that large-scale trends can been identified through meta-analyses of the archaeological record, and these offer new perspectives on how society functioned.


2019 ◽  
Vol 30 (03) ◽  
pp. 529-549 ◽  
Author(s):  
Nicola Sharratt

As in other examples of state collapse, political disintegration of the Tiwanaku state circa AD 1000 was accompanied by considerable cultural continuity. In the Moquegua Valley, Peru, the location of the largest Tiwanaku communities outside the altiplano, settlements and practices associated with this postcollapse cultural continuity are termed Tumilaca. Previous research indicated that Tumilaca was short-lived, with all vestiges of Tiwanaku gone from Moquegua's archaeological record by the thirteenth century when the valley was subsequently characterized by Estuquiña-style materials. This article discusses radiocarbon dates from Tumilaca la Chimba, a village established as the political authority of the Tiwanaku state waned. The 21 absolute dates from Tumilaca domestic, public, and funerary contexts span at least 350 years, from the late tenth to the mid-fourteenth centuries AD. They suggest that (1) Tiwanaku-affiliated communities endured well into the later Late Intermediate Period (AD 1200–1470); (2) ongoing debates about the emergence of Estuquiña communities must consider the role of terminal Tiwanaku populations; and (3) analyses of postcollapse continuity can be enhanced by considering peripheral locales and the particularities of continuity.


2006 ◽  
Vol 71 (4) ◽  
pp. 595-620 ◽  
Author(s):  
Michael R. Bever

Alaska is commonly viewed as a gateway between the Old and New Worlds, and as such, figures prominently in most models of the peopling of the New World. With a growing number of archaeological sites dating to the terminal Pleistocene, Alaska might be expected to provide direct evidence bearing on the colonization of the Americas. Based on 27 site components with 114 radiocarbon dates, this paper discusses the archaeological record of late Pleistocene Alaska, organized around the characteristics and chronology of three complexes: the microblade-bearing Denali complex, the Nenana complex, and the Mesa complex. This paper shows that the archaeological record of late Pleistocene Alaska is quite diverse, and not lacking in controversy and conflicting interpretations. In addition, this period of archaeological diversity coincides with the Younger Dryas climatic event. However, none of the reliably dated sites is older than the earliest evidence of human occupation further south in the Americas. Despite this, evidence from DNA studies points strongly to a north-central Asian homeland for Native Americans, upholding Alaska as the point of entry into the New World. Suggestions are offered, then, as to why the Alaskan record remains silent about the initial peopling of the New World.


1992 ◽  
Vol 57 (2) ◽  
pp. 202-230 ◽  
Author(s):  
Michael J. Shott

Like any scientific technique, radiocarbon dating has limitations, and its results cannot be interpreted uncritically. The archaeological record of Childers, a Late Woodland site in eastern North America, and inferences concerning its occupational history are evaluated here against radiocarbon dates from the site. The record suggests a single, relatively brief, occupation, but radiocarbon-dating results suggest either a much longer continuous occupation or a long series of shorter ones. The apparent conflict between the archaeological record and radiocarbon results is resolved by considering context and integrity of radiocarbon samples, as well as the probabilistic character of the radiocarbon method itself. Considerable dispersion in dating results can occur even in relatively brief occupations, casting doubt on the uncritical interpretation of raw radiocarbon results. Childers's occupational history and chronological placement have important implications for regional culture process during the early Late Woodland interval, and suggest a time lag in the acceptance of cultural innovations.


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