Possible sources of archaeological maize found in Chaco Canyon and Aztec Ruin,New Mexico

Maize played a major role in Chaco's interaction with outlying communities in the southern Colorado Plateau. This paper seeks to determine where archaeological corn cobs brought to Chaco Canyon were grown. Strontium-isotope and trace-metal ratios of 180 soil-water and 18 surface-water sites in the Southern Colorado Plateau have revealed possible source areas for some of 37 archaeological corn cobs from Chaco Canyon and 10 archaeological corn cobs from Aztec Ruin, New Mexico. The most probable source areas for cobs that predate the middle-12th-century drought include several Upper Rio Chaco sites (not including Chaco Canyon). There are many potential source areas for cobs that date to the late A.D. 1100s and early 1200s, all of which lie in the eastern part of the study area. Some Athapascan-age cobs have potential source areas in the Totah, Lobo Mesa, and Dinetah regions. One Gallo Cliff Dwelling cob has a strontium-isotope ratio that exceeds all measured soil-water values. Field sites for this cob may exist in association with Paleozoic and Precambrian rocks found 80–90 km from Chaco Canyon. Potential source areas for most Aztec Ruin cobs (many of which were found in rooms dating to the first half of the 13th-century) appear to be associated with a loess deposit that blankets the Mesa Verde and McElmo Dome regions.     

Factors Controlling Pre-Columbian and Early Historic Maize Productivity in the American Southwest, Part 2: The Chaco Halo, Mesa Verde, Pajarito Plateau/Bandelier, and Zuni Archaeological Regions

Chemical and nutrient analyses of 471 soil samples from 161 sites within four archaeological regions (Pajarito Plateau/Bandelier, Zuni, Mesa Verde, and the Chaco Halo) were combined with historical climate data in order to evaluate the agricultural productivity of each region. In addition, maize productivity and field-life calculations were performed using organic-nitrogen (N) values from the upper 50 cm of soil in each region and a range (1?C3%/year) of N-mineralization rates. The end-member values of this range were assumed representative of dry and wet climate states. With respect to precipitation and heat, the Pajarito Plateau area has excellent agricultural potential; the agricultural potentials of the Zuni and Mesa Verde regions are good; and the agricultural potential of the Chaco Halo is poor. Calculations of N mineralization and field life indicate that Morfield Valley in Mesa Verde should be able to provide 10 bu/ac of maize for decades (without the addition of N) when organic N-mineralization rates exceed 2%. Productivity and field-life potential decrease in the following order: Zuni, Mesa Verde, Bandelier, Chaco Halo. The Chaco Halo is very unproductive; e.g., 10 bushels per acre can be achieved within the Halo only from soils having the highest organic N concentration (third quartile) and which undergo the highest rate (3%) of N mineralization.     

Some thoughts on the factors that controlled prehistoric maize production in the American Southwest with application to southwestern Colorado

In this paper, we present a model of prehistoric southwestern Colorado maize productivity. The model is based on a tree-ring reconstruction of water-year precipitation for Mesa Verde for the period A.D. 480 to 2011. Correlation of historic Mesa Verde precipitation with historic precipitation at 11 other weather stations enabled the construction of an elevation-dependent precipitation function. Prehistoric water-year precipitation values for Mesa Verde together with the elevation-dependent precipitation function allowed construction of the elevation of southwest Colorado precipitation contours for each year since A.D. 480, including the 30-cm contour, which represents the minimum amount of precipitation necessary for the production of maize and the 50-cm contour, which represents the optimum amount of precipitation necessary for the production of maize. In this paper, calculations of prehistoric maize productivity and field life for any specific elevation are also demonstrated. These calculations were performed using organic nitrogen measurements made on seven southwestern Colorado soil groups together with values of reconstructed water-year precipitation and estimations of the organic nitrogen mineralization rate.     

Tewa Place Names for Early Habitation Sites in the Northern Rio Grande Valley,New Mexico

Place names have the potential to aid in the investigation of regional settlement histories because they reflect the importance of specific locations in the social or cultural memories of indigenous groups. Unique place names for ancient habitation sites such as villages or hamlets, i.e., those names for which there are no cognates in other languages, suggest that those ancient villages or hamlets still retain the names given to them by their original inhabitants. Here, we present Tewa place names for habitation sites identified archaeologically in the northern Rio Grande Valley of New Mexico. The results of our study strongly suggest that the Tewa language was spoken in the northern Rio Grande Valley, specifically, within the southern Tewa Basin, as early as the Late Developmental period (a.d. 900–1200), thus challenging the currently well-accepted model postulating a Mesa Verde origin for the Tewa language and culture.     

Environmental Reconstruction and the Abandonment of the Largo-Gallina Area,New Mexico

Abstract

The hypothesis that significant climatic change occurred in NW New Mexico between 1200 and 1300 A.C., resulting in the abandonment of the Largo-Gallina area, was tested. Analyses of samples of microfaunal, corn, and pollen remains from a dated series of Largo-Gallina Phase sites and geological studies all support the conclusion that the study area experienced changing environmental conditions, probably the result of steadily increasing aridity, beginning about 1250 A.C. Study of the Largo-Gallina corn materials indicates that crop quality deteriorated substantially towards the end of the span of occupation.     

Edward II. His Last Months and his Monument

Abstract

Very little site-oriented dendrochronology has been undertaken in Scotland, possibly because of the absence of a locally based dendrochronological facility until recently. However, timbers found during the excavations of several medieval burghs in the late 1970s and 1980s were saved for future analysis and had been stored in museums around the country. During a project to locate suitable samples fir a Scottish tree-ring database the potential of these assemblages was recognised. Although relatively small assemblages, their analysis has expanded and strengthened the tree-ring database within Scotland, thus facilitating future work. Evidence fir synchronous development in the early burghs in the late 12th century and the nature of the woodland resource at times during the medieval period is presented. An 'event horizon' in the early 10th century, signalled by the birth dates of marry of the dated timbers, has been recognised and possible causes are discussed. The projects reported on here were all funded by Historic Scotland.     

The Roles of Pit Houses and Gendered Spaces on Viking-Age Farmsteads in Iceland

Abstract

THE SMALL SEMI-SUBTERRANEAN buildings (jarðhús) with slab-built ovens that have been found on many Viking-Age farmsteads in Iceland (late 9th–11th century) have been subject to wide-ranging interpretations, from short-lived, expedient dwellings to saunas, women’s workrooms, the houses of Slavic settlers and in one case a cult building. This paper tests these hypotheses by making a thorough revaluation of pit-house dates, architectural forms, internal structural features and artefacts, and presents new geoarchaeological evidence from the pit house at Hofstaðir, NE Iceland. This lends strong support to the interpretation that they were women’s workrooms, primarily for the production of woollen textiles. Their abandonment in the later 10th and 11th centuries may be interpreted in the light of changing religious beliefs and social structures, the growing importance of homespun cloth as a valuable export commodity, and the rise in status of the women who made it.     

Preserving dirt-walled structures in Mesa Verde National Park

Abstract

The authorities at Mesa Verde National Park have been building and managing temporary and permanent shelters over excavated mesa-top archaeological sites since 1919. Over twenty shelters have been built over the years. These have varied from informal vernacular constructions to structures designed by professional architects for the specific needs of the Park. There are presently twelve shelters in the Park. Two of the existing twelve shelters are informal 'temporary' shelters built by Park staff and are over sites that are not on exhibit to the public. The other ten shelters are over sites on exhibit and were designed by professional architects. One is of metal and was built in 1969. The other nine shelters are constructed of precast concrete with a wooden roof, built in 1984–87. The professionally designed shelters have been fairly successful in protecting the sites that they cover. In 2000 a wildfire damaged four shelters in its path but the archaeology protected by these shelters was undamaged.     

Ancestral Veneration and the Settlement History of Tell Sūkās

Abstract

Scholarship of the Bronze-to-Iron Age transition in the northern Levantine littoral has traditionally stressed a major disjuncture in settlement and societal development c. 1200 BCE, concurrent with the destruction and abandonment of the Ugaritic capital at Ras Shamra. Based upon a reinterpretation of the archaeological remains at Tell Sūkās, this study argues for a degree of regional continuity in cultural lineage from the mid-second to early first millennium BCE, based upon the proposed identification of a previously unknown example of ancestral veneration.     

A STATISTICAL APPROACH TO THE CALIBRATION OF FLOATING TREE-RING CHRONOLOGIES USING RADIOCARBON DATES

The bristlecone pine tree-ring calibration of radiocarbon dates, while necessitating changes of up to 700 years in Holocene chronology before 1000 b.c. , offers possibilities of very accurate dating when ¹⁴C determinations from floating tree-ring chronologies are utilized. A statistical approach assuming linear regression is developed and used to position the floating tree-ring chronologies at Swiss neolithic sites, using radiocarbon dates published by Ferguson, Huber and Suess and by Suess. The statistical method gives objective estimated dates with estimates of error related, in a consistent and explicit manner, to the inherent inaccuracies of the radiocarbon dates. Most of the method may readily be tested by standard statistical procedures. For the particular cases considered the assumptions of linearity and parallelism are investigated, and the precision of the estimated dates is comparable with that claimed by Suess and his co-workers. A precise calibration is thus possible without utilizing the short-term fluctuations in the Suess calibration curve. The analysis, while avoiding some assumptions of Suess and his collaborators, offers an explicit procedure for establishing controlled teleconnections with the Ferguson dendrochronology, and supports their emphasis on the importance of radiocarbon dates from floating tree-ring sequences for the construction of precise prehistoric chronologies.     

The Eleventh- and Twelfth-century Waterfront and Settlement at Queenhithe: Excavations at Bull Wharf,City of London

Evidence for the development of London’s riverside settlement c. AD 1000–1200 was found on the east edge of an important dock known successively as Æthelred’s hithe and Queenhithe. A sequence of embankments and tree-ring dated revetments advanced the waterfront nearly 40 m into the Thames and small inlets provided access to the foreshore. Building and rebuilding took place on a row of properties, with up to a dozen buildings identified; after c. 1150, passages were created for two narrow lanes connecting Thames Street with the quays and foreshore. Important reused building and ships’ timbers and dated groups of metalwork and other artefacts were recovered from the waterfronts.     

EARLY WOODLAND SETTLEMENT AND MOUND BUILDING IN THE UPPER TENSAS BASIN,NORTHEAST LOUISIANA

Abstract

Traditionally overlooked because it lacks hallmarks of material and cultural complexity, Early Woodland in the Southeast is an interval of significant transformation in material culture, settlement, and social organization. Investigations at four sites in northeast Louisiana provide insights into changes taking place at this time. These sites are situated on a crevasse splay created by flooding at the end of the Archaic. This flooding is associated with an occupation hiatus ca. 3000–2500 cal B.P. Evidence suggests a rapid colonization of the crevasse splay by people using Tchefuncte pottery, and there is no evidence at these sites of stratigraphic or cultural continuity from Poverty Point. The Early Woodland occupation in the study area dates ca. 2400–2100 cal B.P., which is later than dates associated with Early Woodland in the Pontchartrain Basin and contemporary with Lake Cormorant culture sites farther north. Early Woodland in northeast Louisiana is marked by a diagnostic Tchefuncte ceramic assemblage and the presence of a settlement system composed of small villages or hamlets nucleated around a conical mound that presumably served as a ceremonial/ritual center. This mound was erected very rapidly; radiocarbon dates suggest it was constructed in no more than 10 years. Although mound building has been suspected, this is the first conclusive evidence it was an aspect of Tchefuncte settlement and ceremonial practices. Data from these sites bear on the question of cultural and demographic continuity and change at the Archaic to Woodland transition. Previous models emphasize continuity of populations with ceramic technology and styles diffusing into the lower Mississippi Valley. In contrast, our data support a model of Early Woodland repopulation of the lower Mississippi Valley from the south and east following a prolonged period of regional abandonment.     

Archaeology as Built for the Tourists: The Anasazi Cliff Dwellings of Manitou Springs,Colorado

Anasazi-era archaeology sites have been extremely popular tourist attractions since the 1890s, but one site—the cliff dwellings in Manitou Springs, Colorado—stands apart because it is a fake. The site was constructed at the turn of the twentieth century as a more accessible tourist alternative to Four Corners-area Anasazi ruins. The story of its construction and how it continues to cater to its visitors offers insight into the ways in which archaeology sites function as tourist destination. The Manitou Cliff Dwellings forces scholars to consider questions of authenticity, authority, and how people engage the past.     

An archaeology of poverty: architectural innovation and pauper experience at Madeley Union Workhouse,Shropshire

Abstract

One of the world’s most important industrial heritage sites, Ironbridge Gorge has been the focus of numerous archaeological investigations into the area’s early, innovative industrialization. The region’s important contribution to the development of institutional architecture and early social care has not been explored. An archaeological study of Madeley Union Workhouse exposes the complexity of the evolving ideologies surrounding pauperism in the late 19th century. This article broadens our understanding of Ironbridge by analysing the region’s response to poverty and the New Poor Law, and considers the impact of institutional architecture on pauper identity and experience.     

Who provided maize to Chaco Canyon after the mid-12th-century drought?

Between A.D. 1181 and 1200, in the early part of a climatically wet period, corn was imported to Chaco Canyon from a region outside the Chaco Halo (defined in this paper as the region between the base of the Chuska Mountains and Raton Wells). Strontium-isotope (⁸⁷Sr/⁸⁶Sr) analyses of 12 corn cobs dating to this period match ⁸⁷Sr/⁸⁶Sr ratios from five potential source areas, including: the Zuni region, the Mesa Verde-McElmo Dome area, the Totah, the Defiance Plateau, and Lobo Mesa. The latter two areas were eliminated from consideration as possible sources of corn in that they appear to have been unpopulated during the time period of interest. Therefore, it appears that the corn cobs were imported from the Zuni region, the Mesa Verde-McElmo Dome area, or the Totah area during a time when the climate was relatively wet and when a surplus of corn was produced in regions outside Chaco Canyon. Based on proximity to and cultural affiliation with Chaco Canyon, it is hypothesized that the corn probably was imported from the Totah.     

Four middle Holocene pillar sites in West Turkana,Kenya

Abstract

Megalithic architecture is associated with spread of food production in many parts of the world, but archaeological investigations have focused mainly on megalithic sites among early agrarian societies. Africa offers the opportunity to examine megalithic construction—and related social phenomena—among mobile herders and hunter-gatherers with no access to domestic plants. In northwest Kenya, several megalithic "pillar sites" are known near Lake Turkana, but few have seen systematic research. This paper presents the results of archaeological survey and test excavations at four pillar sites in West Turkana 2007–2009, and describes the sites' spatial arrangements, depositional sequences, and material culture. Radiocarbon dates suggest that pillar sites near Lothagam were used ca. 4300 B.P. (uncalibrated), just as early herding began near Lake Turkana, while pillar sites near Kalokol may be slightly later (ca. 3800 B.P.). Comparisons of material cultural point to possible differences in use of contemporaneous pillar sites, and suggest monumental architecture had multiple forms and purposes in middle Holocene Turkana.     

Palaeoeskimo Demography on Western Boothia Peninsula,Arctic Canada

Abstract

Surveys on western Boothia Peninsula in 2004 documented 483 Palaeoeskimo dwellings spanning approximately 3300 years (4500–1200 B.P. in uncalibrated radiocarbon years), about the total time range for Palaeoeskimo groups in the central Canadian Arctic. On the basis of dwelling elevations above sea level and a series of radiocarbon dates, Palaeoeskimo occupation appears to have passed through multiple boom-and-bust cycles. Following the first peopling of the region about 4500 B.P., populations rose to a maximum between about 4200 and 3600 B.P., followed by a crash. A recovery between 3200 and 2500 B.P. led to a second decline, and a final, partial recovery between 1600 and 1200 B.P. was followed by the disappearance of Palaeoeskimo groups. Although climate change cannot be ruled out as a causal factor for these cycles, there is no compelling evidence for such a scenario. Resource over exploitation is equally plausible, although we do not necessarily favor one cause over the other.

We interpret the intrasite patterns to indicate that Palaeoeskimo settlements were comprised of dispersed nuclear families or small extended families for most of the year, but annual aggregations involved 100 individuals or more. Minimal social units do not appear to have changed during seasonal aggregations in Pre-Dorset times (4500–2500 B.P.). By Dorset times (2500–700 B.P.), however, minimal social units sometimes melded together to form one or a few larger units living in one or a few large dwellings. The latter may represent the social precursor of later Dorset longhouse aggregations.     

Lagunillas: A New Archeological Phase for the Lake Maracaibo Basin,Venezuela

Abstract

This paper describes and compares the newly established archeological Lagunillas phase for the Lake Maracaibo Basin in northwestern Venezuela. Lagunillas is characterized by subsistence based on corn, by pile dwellings, and by complex pottery emphasizing plastic decorative techniques. A set of radiocarbon dates places Lagunillas into Period II (1000 B.C.-300 A.C.) of the regional chronology. Although it shares some traits with other western Venezuelan pottery traditions, Lagunillas also shows northern Colombian, Ecuadorian, and, indirectly, Amazonian influences.     

Animal Resource Exploitation among the Virgin River Puebloans in the American Southwest

Abstract

A review of the literature documenting faunal remains recovered from 16 archaeological sites attributed to the Virjin River Puebloan (VRP) tradition (ca. 300 B.C.–A.D. 1200) of the American Southwest was conducted to identify the importance of wild animal resources to the subsistence strategy. The Number of Individual Specimens (NISP) was counted (NISP = 16,386) and sorted by taxa and animal size categories to explore differences in the distributions of faunal remains by archaeological recovery strategy, site type, physiographic location, and chronology. The most significant factor in the differential use of animal resources among the VRPs was physiographic location. Desert lowland sites had greater species diversity. Sites in the intermediate St. George Basin had more large mammals such as deer, and sites located on the higher plateau had more small mammals such as lagomorphs. These results indicate that the subsistence strategy varied across diverse environmental conditions, but animal resources were always an integral part of the VRP adaptation until their abandonment of the region in the early 13th century A.D.     

Farm Development in the Malangen Area,Northern Norway – A Pollen-Analytical Case Study

Abstract

The present farms Engenes and Bakkejord constitute the sites of this investigation. The eastern limit of the historical Greipstad farm – Engenes – had a small permanent settlement from during the period c. AD 750–950. Bakkejord had a permanent settlement from about AD 1200–1250. Four different periods since the Birth of Christ with farm abandonment or very low anthropogenic activity are recorded, and the two youngest ones are discussed on the basis of historical information.